Posts Tagged ‘Energy’

Will the Labrador energy switcher make you switch suppliers?

March 19th, 2018

Powered by Guardian.co.ukThis article titled “Will the Labrador energy switcher make you switch suppliers?” was written by Adam Vaughan, for The Guardian on Sunday 11th March 2018 16.13 UTC

A device that plugs into a home broadband router and automatically switches supplier when cheaper deals become available is set to revolutionise the home energy market.

The launch of Labrador comes as more and more people are changing their energy companies.

The company’s free service is primarily targeted at the growing number of households which have smart meters, which automate readings. More than 8m have been installed in the UK so far, and energy suppliers have to offer one to every home in the UK by the end of 2020.

Unlike conventional price comparison sites, which require people to actively search for a better deal and input their details and energy use, Labrador will automatically switch people’s accounts when it finds a cheaper tariff.

Jane Lucy, founder and CEO of Labrador, said: “We’re not about behaviour change: we assume consumer lethargy will remain.”

Flipper is a similar service that launched in 2016, relying on accessing a customer’s energy bills, which might be estimated. Labrador believes it will be more accurate, as it use a device that plugs into a customer’s broadband router and talks wirelessly to their smart meters, taking readings direct from them.

While Flipper charges an annual £25 fee, Labrador makes its money like a switching site, by being paid an acquisition fee by suppliers.

Lucy said she expected customers would be switched 1-3 times a year and save on average £300 a year. They are given the choice to tailor their preferences, for example, to just green energy tariffs.

The company has signed up about 500 customers since a soft launch in February, but aims to take 3% of the switching market within five years. In the future the company may branch out into home automation and helping consumers identify individual energy-guzzling appliances, Lucy said.

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Weatherwatch: can we keep the lights on when the wind fails to blow?

January 10th, 2018

Powered by Guardian.co.ukThis article titled “Weatherwatch: can we keep the lights on when the wind fails to blow?” was written by Kate Ravilious, for The Guardian on Tuesday 9th January 2018 21.30 UTC

Last year was one of the greenest for power in the UK. Nearly one-third of all electricity came from renewable sources, and wind and solar provided more power than coal on 315 days of the year. Rapid growth in both solar and wind (the UK now has more offshore wind power capacity than any other country in the world) has enabled the UK to achieve these impressive statistics, but will the rise in renewables also make UK power more vulnerable to the whims of British weather?

Researchers working on the European Climatic Energy Mixes project have been investigating future risk by assessing how the UK would fare with a repeat of the unusually cold winter of 2009-10. From mid-December 2009 a southward-displaced jet stream allowed cold air to pour in from eastern Europe, bringing widespread snow and plunging temperatures. The mean UK temperature for the entire winter was just 1.5C, the lowest since 1978-79 when it was 1.2C . As a result power demand surged, with electricity consumption between 10 and 20% above average on a number of occasions.

Back in 2010 renewables provided less than 10% of UK electricity. But similar weather now might create a strain. “The low wind conditions in a repeat of winter 2009-10 would lead to a substantial reduction in wind power production over the season, which could lead to increased risks to electricity supply availability when combined with an increased demand due to low temperatures,” writes meteorologist Emma Suckling from the University of Reading. Winters like this might be getting rarer, but we still need a contingency plan when the wind fails to blow.

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The seven megatrends that could beat global warming: ‘There is reason for hope’

November 10th, 2017

Powered by Guardian.co.ukThis article titled “The seven megatrends that could beat global warming: ‘There is reason for hope'” was written by Damian Carrington, Environment editor, for The Guardian on Wednesday 8th November 2017 07.00 UTC

‘Everybody gets paralysed by bad news because they feel helpless,” says Christiana Figueres, the former UN climate chief who delivered the landmark Paris climate change agreement. “It is so in our personal lives, in our national lives and in our planetary life.”

But it is becoming increasingly clear that it does not need to be all bad news: a series of fast-moving global megatrends, spurred by trillion-dollar investments, indicates that humanity might be able to avert the worst impacts of global warming. From trends already at full steam, including renewable energy, to those just now hitting the big time, such as mass-market electric cars, to those just emerging, such as plant-based alternatives to meat, these trends show that greenhouse gas emissions can be halted.

“If we were seeing linear progress, I would say good, but we’re not going to make it in time,” says Figueres, now the convener of the Mission 2020 initiative, which warns that the world has only three years to get carbon emissions on a downward curve and on the way to beating global warming. “But the fact is we are seeing progress that is growing exponentially, and that is what gives me the most reason for hope.”

No one is saying the battle to avert catastrophic climate change – floods, droughts, famine, mass migrations – has been won. But these megatrends show the battle has not yet been lost, and that the tide is turning in the right direction. “The important thing is to reach a healthy balance where we recognise that we are seriously challenged, because we really have only three years left to reach the tipping point,” says Figueres. “But at the same time, the fact is we are already seeing many, many positive trends.”

Michael Liebreich, the founder of Bloomberg New Energy Finance, agrees. “The good news is we are way better than we thought we could be. We are not going to get through this without damage. But we can avoid the worst. I am optimistic, but there is a long way to go.”

Also cautiously hopeful is climate economist Nicholas Stern at the London School of Economics. “These trends are the start of something that might be enough – the two key words are ‘start’ and ‘might’.” He says the global climate negotiations, continuing this week in Germany and aiming to implement the Paris deal, are crucial: “The acceleration embodied in the Paris agreement is going to be critical.”

THE TRENDS

1. Methane: getting to the meat

A lab-grown burger.
A lab-grown burger. Photograph: David Parry/PA

Carbon dioxide from burning fossil fuels is the main greenhouse gas, but methane and nitrous oxide are more potent and, unlike CO2, still rising. The major source is livestock farming, in particular belching cattle and their manure.

The world’s appetite for meat and dairy foods is rising as people’s incomes rise, but the simple arithmetic is that unless this is radically curbed, there is no way to beat global warming. The task looks daunting – people hate being told what to eat. However, just in the last year, a potential solution has burst on to the market: plant-based meat, which has a tiny environmental footprint.

What sounds like an oxymoron – food that looks and tastes just as good as meat or dairy products but is made from plants – has attracted heavy investment. The buzz is particularly loud in the US, where Bill Gates has backed two plant-based burger companies and Eric Schmidt, formerly CEO of Google, believes plant-based foods can make a “meaningful dent” in tackling climate change.

Perhaps even more telling is that major meat and dairy companies are now piling in with investments and acquisitions, such as the US’s biggest meat processor, Tyson, and multinational giants Danone and Nestlé. The Chinese government has just put 0m (£228m) into Israeli companies producing lab-grown meat, which could also cut emissions.

New plant-based products, from chicken to fish to cheese, are coming out every month. “We are in the nascent stage,” says Alison Rabschnuk at the US nonprofit group the Good Food Institute. “But there’s a lot of money moving into this area.”

Plant-based meat and dairy produce is not only environmentally friendly, but also healthier and avoids animal welfare concerns, but these benefits will not make them mass-market, she says: “We don’t believe that is what is going to make people eat plant-based food. We believe the products themselves need to be competitive on taste, price and convenience – the three attributes people use when choosing what to eat.”

Plant-based milks – soya, almond, oat and more – have led the way and are now about 10% of the market and a billion-dollar business in the US. But in the past year, sales of other meat and dairy substitutes have climbed 8%, with some specific lines, such as yoghurt, shooting up 55%. “I think the writing’s on the wall,” says Rabschnuk. Billionaire entrepreneur Richard Branson agrees. “I believe that in 30 years or so we will no longer need to kill any animals and that all meat will either be [lab] or plant-based, taste the same and also be much healthier for everyone.”

Plant-based alternatives to meat and dairy products are growing fast

2. Renewable energy: time to shine

Solar panel installation.
Solar panel installation. Photograph: Kristian Buus/Corbis via Getty Images

The most advanced of the megatrends is the renewable energy revolution. Production costs for solar panels and wind turbines have plunged, by 90% in the past decade for solar, for example, and are continuing to fall. As a result, in many parts of the world they are already the cheapest electricity available and installation is soaring: two-thirds of all new power in 2016 was renewable.

This extraordinary growth has confounded expectations: the respected International Energy Agency’s annual projections have anticipated linear growth for solar power every year for the past decade. In reality, growth has been exponential. China is leading the surge but the impact is being felt around the world: in Germany last week there was so much wind power that customers got free electricity.

In the US, enthusiasm for green energy has not been dented by President Donald Trump committing to repeal key climate legislation: bn has been invested since he signed an executive order in March. “I am no longer concerned about electric power,” says Figueres.

Global wind and solar is soaring

3. King coal: dead or dying

The flipside of the renewables boom is the death spiral of coal, the filthiest of fossil fuels. Production now appears to have peaked in 2013. The speed of its demise has stunned analysts. In 2013, the IEA expected coal-burning to grow by 40% by 2040 – today it anticipates just 1%.

The cause is simple: solar and wind are cheaper. But the consequences are enormous: in pollution-choked China, there are now no provinces where new coal is needed, so the country has just mothballed plans for 151 plants. Bankruptcies have torn through the US coal industry and in the UK, where coal-burning began the industrial revolution, it has fallen from 40% of power supply to 2% in the past five years.

“Last year, I said if Asia builds what it says it is going to build, we can kiss goodbye to 2C” – the internationally agreed limit for dangerous climate change – says Liebreich. “Now we are showing coal [plans] coming down.” But he warns there is more to do.

Solar and wind are cheaper than new coal, he says, but a second tipping point is needed. That will occur when renewables are cheaper to build than running existing coal plants, meaning that the latter shut down. If renewable costs continue to fall as expected, this would happen between 2030 and 2040. At that point, says Liebrich, “Why keep digging coal out of the ground when you could just put up solar?”

World coal production peaked in 2013

4. Electric cars: in the fast lane

Vehicles being charged at China’s leading maker of electric cars, BYD Co, in Shenzhen, China.
Vehicles being charged at China’s leading maker of electric cars, BYD Co, in Shenzhen, China. Photograph: Qilai Shen/Bloomberg/Getty Images

Slashing oil use – a third of all global energy – is a huge challenge but a surging market for battery-powered cars is starting to bite, driven in significant part by fast-growing concerns about urban air pollution.

China, again, is leading the way. It is selling as many electric cars every month as Europe and the US combined, with many from home-grown companies such as BYD. US-based Tesla is rolling out its more affordable Model 3 and in recent months virtually all major carmakers have committed to an electric future, with Volvo and Jaguar Land Rover announcing that they will end production of pure fossil-fuelled cars within three years.

“We have a domino effect now,” says Figueres. These cars are “now being made for the mass market and that is really what is going to make the transformation”.

“I don’t think it is going to slow down,” says Viktor Irle, an analyst at EV-volumes.com. Drivers can see the direction of travel, he says, with a stream of choked cities and countries from Paris to India announcing future bans on fossil-fuelled cars.

It is true that global sales of electric cars have now achieved liftoff, quadrupling in the past three years, but they still make up only 1.25% of all new car sales. However, if current growth rates continue, as Irle expects, 80% of new cars will be electric by 2030.

The rapid rise of electric cars has left the oil giants, who have a lot to lose, playing catchup. The oil cartel Opec has increased its estimate of the number of electric cars operative in 2040 by five times in the past year alone, with the IEA, ExxonMobil and BP all bumping up their forecasts too. Heavy transport remains a challenge, but even here ships are experimenting with wind power and batteries. Short-haul electric airplanes are on the drawing board, too.

Global electric car fleet is following a rapidly rising curve

5. Batteries: lots in store

A lithium-ion battery.
A lithium-ion battery. Photograph: Alamy

Batteries are key to electric cars and, by storing energy for when the sun goes down or the wind stops blowing, they are also vital when it comes to enabling renewable energy to reach its full potential. Here too, a megatrend is crushing prices for lithium-ion batteries, which are down 75% over the past six years. The International Renewable Energy Agency expects further falls of 50-66% by 2030 and a massive increase in battery storage, linked to increasingly smart and efficient digital power grids. In the UK alone, government advisers say a smart grid could save bill-payers £8bn a year by 2030, as well as slashing carbon emissions.

Fears that lithium-ion, the technology that dominates today, cannot be scaled up sufficiently are overblown, argues Liebreich, as the metal is not rare. “I think lithium-ion is a banker in that you can be sure it will get cheaper and you can be sure there is enough.” He is also frustrated by frequent claims that a grid based on renewables and storage cannot be cheap and reliable: “That stupidity and absolute certainty is in inverse proportion to any knowledge of how you run an electrical system.”

It is true, however, that batteries will not be the solution for energy storage over weeks or months. For that, long-distance electricity interconnectors are being built and the storage of the energy as gas is also being explored.

Battery costs are tumbling

6. Efficiency: negawatts over megawatts

A zero-carbon house.
A zero-carbon house. Photograph: Alamy

Just as important as the greening of energy is reducing demand by boosting energy efficiency. It’s a no-brainer in climate policy, but it can be very tricky to make happen, as it requires action from millions of people.

Nonetheless, good progress is being made in places such as the EU, where efficiency in homes, transport and industry has improved by about 20% since 2000. Improving the efficiency of gadgets and appliances through better standards is surprisingly important: a new UN Environment Programme report shows it makes the biggest impact of any single action bar rolling out wind and solar power.

But again, continued progress is vital. “We need to drive energy efficiency very, very hard, even for European countries,” says Prof Kevin Anderson at the University of Manchester. “We could power down European energy use by about 40% in something like 10-15 years, just by making the most efficient appliances available the new minimum.”

In countries with cool winters, better insulation is also needed, particularly as a fossil fuel – natural gas – currently provides a lot of heating. “What is a crime is every time a building is renovated but not renovated to really high standards,” says Liebreich, who thinks labelling such homes as “zero-energy-bill” homes, not “zero-carbon” homes, would help overcome opposition.

One sector that is lagging on energy efficiency is industry, but technology to capture and bury CO2 from plants is being tested and ways to clean up cement-making are also being explored.

Energy efficiency has improved in EU homes, transport and industry

7. Forests: seeing the wood

The destruction of forests around the world for ranching and farming, as well as for timber, causes about 10% of greenhouse gas emissions. This is the biggest megatrend not yet pointing in the right direction: annual tree losses have roughly doubled since 2000.

This is particularly worrying as stopping deforestation and planting new trees is, in theory at least, among the cheapest and fastest ways of cutting carbon emissions. But it is not getting the support it needs, says Michael Wolosin at Forest Climate Analytics. “Climate policy is massively underfunding forests – they receive only about 2% of global climate finance.” Furthermore, the .3bn committed to forests by rich nations and multilateral institutions since 2010 is tiny compared with the funding for the sectors that drive deforestation. “Brazil and Indonesia’s governments alone invested 6bn in the same timeframe, in just the four key driver commodities: palm oil, soy, beef and timber,” says Franziska Haupt at Climate Focus.

In fact, new research has shown that better land management could deliver a third of all the carbon cuts the world needs, and Wolosin says there are some grounds for hope that new forests can be planted. “Achieving large-scale forestation is not just theoretical. We know we can do it because a few countries have done it successfully.”

In the past two decades, tree-planting in China, India and South Korea has removed more than 12bn tonnes of CO2 from the atmosphere – three times the entire European Union’s annual emissions, Wolosin says. This action was driven by fears about flooding and food supply, meaning that global warming needs to be seen as equally urgent in this sector. Regrowing forests can also play a crucial role in sucking CO2 out of the atmosphere, which is likely to be necessary after 2050, unless very sharp cuts are made now.

Global tree losses are increasing

The race against time

Will these megatrends move fast enough to avoid the worst of climate change? Opinions vary and Anderson is among the most hawkish. He says it remains possible for now, but is pessimistic that the action will be taken. “We’re pointing in the right direction but not moving [there]. We have to not just pursue renewables and electric vehicles and so forth, we have to actively close down the incumbent fossil fuel industry.”

Stern is cautiously optimistic, saying that what has changed in recent years is the realisation that green economic growth is the only long-term option: “There is no long-run high-carbon growth story because it creates an environment so hostile that it turns development backwards.

“There are some tremendous developments so I am very confident now we can do this, but the change, attractive as it is, has to be radical,” he says. “Will we have the political and economic understanding and commitment to get there? I hope so.”

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Australian homes among first to get Tesla’s Powerwall solar-energy battery

September 27th, 2015

Powered by Guardian.co.ukThis article titled “Australian homes among first to get Tesla’s Powerwall solar-energy battery” was written by Oliver Milman, for theguardian.com on Friday 18th September 2015 03.08 UTC

Australia will be one of the first countries in the world to get Tesla’s vaunted Powerwall battery storage system, as several other companies scramble to sign up Australia’s growing number of households with solar rooftops.

US firm Tesla said that its 7kWH home energy storage units would be available by the end of the year in Australia, ahead of previous predictions it would arrive in 2016.

The Powerwall is a unit that sits on an interior wall. It has a lithium-ion battery, used to store energy created by solar panels on the household roof.

Tesla, which also makes electric cars, is the most high-profile company in the emerging battery storage industry – an area that is seen as crucial in making intermittent renewable energy such as solar and wind into a reliable accompaniment, or even alternative, to fossil fuel-fired power grids.

Canberra-based firm Reposit Power, which enables people to directly buy and sell their stored electricity, has partnered with Tesla for Powerwall’s launch.

There are a handful of existing Australian alternatives to the Powerwall, such as Redflow, headed by Simon Hackett, who founded Internode. Hackett also sits on the board of the NBN.

“Tesla’s arrival is important because they have such a high profile,” said Prof Anthony Vassallo, a sustainable energy expert at the University of Sydney. “The Tesla product isn’t unique by any stretch, but it’s the Apple brand of the battery storage industry, they have the sex appeal that others don’t.

“Solar PV and batteries are such a wonderful combination. Australians have demonstrated they are quite happy to purchase PV systems, Australia has a great solar resource and to have a battery to store that makes a lot of sense.

“There are packages of PV and batteries being offered by retailers and, as prices come down, we’ll see a lot more of this. Tesla’s price point in the US – of about US,000 (,173) – would be competitive here, it will sharpen up the players to make more efficient and higher-performing systems.”

Vassallo pointed out that the technology still has some way to improve – a 7kWH system will store little more than an hour’s electricity generated by a typical 5kWH solar system, meaning that some people may have to have several Powerwall, or equivalent, systems on their walls.

“I’d be wary of claims that people can go entirely off the grid, but it’s a first step,” he said. “Australia has high electrity prices, and once the price is acceptable I think the take-up will be strong.”

There are more than 1.3m households in Australia with rooftop solar, with the number increasing rapidly as the price of PV systems tumble. State-based tariffs have been gradually withdrawn across the country, while the federal government announced in July that it would instruct the Clean Energy Finance Corporation to favour large-scale solar over rooftop solar in its funding decisions.

Labor has set a target of Australia generating 50% of its electrity from renewable energy by 2030, although has provided little detail on how this would be achieved. The prime minister, Malcolm Turnbull, said the goal was “reckless” as the cost of it has not been quantified.

Vassallo said, “Australia could reach that 50% target, it just requires well-designed policies and markets that allow a transition from centralised, large-scale fossil fuels to efficient but variable renewables.

“Storage is a key part to make that happen. The beauty of renewables is that once you’ve managed the capital cost, there is no fuel cost. There’s an energy security there you don’t get with fossil fuels.”

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Business leaders prepare for limited UN climate deal in Paris

May 22nd, 2015

Powered by Guardian.co.ukThis article titled “Business leaders prepare for limited UN climate deal in Paris” was written by Tom Levitt, for theguardian.com on Thursday 21st May 2015 21.04 UTC

Business leaders are preparing for a limited agreement on reducing carbon emissions at the crunch UN summit in Paris later this year, despite growing support from them for carbon pricing and a commitment to cut emissions by enough to avoid more than 2C of global warming.

More than 1,000 business leaders, including the CEOs of Carrefour, Statoil, Total and Unilever, turned up at a business summit on tackling climate change in Paris this week in response to calls from the UN for the private sector to take a more active role in tackling climate change.

They called on policymakers to agree on carbon pricing mechanisms, closer collaboration between business and government on climate policies and a joint public and private sector fund for investing in low-carbon technology, particularly in developing countries.

The meeting comes as UN negotiators are trying to pull together enough emissions reduction commitments to prevent more than 2C of global warming, the level political leaders agreed in 2009 as likely to prevent the worst effects of climate change. The final commitments are needed ahead of the summit of world leaders in December this year.

Business claims frustration

However, business leaders did not expect the necessary emissions reductions or their policy requests to be finalised in December.

“We have to be pragmatic,” French oil group Total CEO Patrick Pouyanné told the Guardian. “If we take the sum of commitments made by countries then I am afraid we will not be on the 2C trajectory. There will be a gap.

“But what is important from the UN talks in December is to have a convergence of companies on the one side and governments on the other. At least some commitments by governments and businesses, and a mechanism in place to improve it,” he said, adding that he is in favour of a carbon pricing principle.

A failure to bring enough emission cut commitments to put the world on track for avoiding global warming of more than 2C is likely to frustrate the majority of businesses, says the Carbon Disclosure Project (CDP), with more than 30 companies including Ford Motor Company, Unilever, Nissan and H&M having already pledged to set long-term, science-based climate targets. The targets will match the scale needed to meet the goal of limiting global temperature increases to 2C.

“A small minority of companies may be relieved to continue on a business as usual pathway in the short term, but it would lead to a build-up of systemic risk in the economy,” says CDP’s CEO Paul Simpson. “The vast majority of companies want to see a managed transition to a low-carbon future and not costly, last-minute regulation or climate chaos.”

French companies were represented in large numbers at this week’s summit, with Renault saying it would be “totally stupid” not to have the right regulations, framework and price signals in place after the UN talks. “We have made the investments and have the technology ready to implement on a larger scale,” said Claire Martin, director for sustainable development at Renault.

Private sector could help meet targets

While some have doubted the sincerity of energy-intensive businesses in particular in tackling climate change, Unilever CEO Paul Polman suggests the private sector could help close the shortfall in emission commitments made by governments. “It is very likely that all the agreements coming in will not add up to what we need to stay below 2C. [Those commitments] will be around 40% of that in reality. That is why we are mobilising the private sector. If we work together we can close that gap.”

However, Claus Stig Pedersen head of corporate sustainability at Novozymes, said the past five years had shown business could not tackle climate change without a strong political deal.

“We had this reaction after the UN talks in Copenhagen in 2009 of disappointment with politicians and I was part of a movement that said okay, let’s just do it ourselves. A lot of business jumped into this space and took some big steps forward, but after some years business in general realised that we couldn’t do this alone.

“There is no way we can do this without partnering with politicians and making agreements going forward. So if we should end up with a Paris failure, like we’ve had before, then I do think we’ve learnt we can’t do it alone. We have all the solutions needed, it’s just about applying it. And regulation, a carbon price and ambitious goals from the UN climate talks will drive that faster,” he added.

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Tesla’s new low-cost battery: ‘the missing piece’ in sustainable energy?

May 3rd, 2015

Powered by Guardian.co.ukThis article titled “Tesla’s new low-cost battery: ‘the missing piece’ in sustainable energy?” was written by Sam Thielman in New York, for theguardian.com on Friday 1st May 2015 12.12 UTC

Will the world become battery-powered? That’s certainly the ambition of Elon Musk, the PayPal billionaire turned would-be space explorer and electric car baron.

On Thursday night, Musk unveiled what he called “the missing piece” in sustainable energy: a range of batteries that can be used in homes and businesses to store power from wind or solar or take advantage of cheap electricity to charge up overnight and then be used in peak hours.

Two billion Powerpacks – as the batteries are called – could store enough electricity to meet the entire world’s needs.

“That may seem like an insane number,” Musk said. “We’re talking about trying to change the fundamental energy infrastructure of the world.”

The first place to feel the battery charge will be Nevada. Next year, Musk’s Tesla Motors is set to start operating a power-storage-device “gigafactory” across nearly a thousand acres of Nevada real estate. It’s required to contribute .5bn to the local economy, in return for a .25bn tax break.

Battery expert Davide Andrea, an engineer at Colorado-based battery manufacturer Elithion, worries about costs. The most basic home unit will cost ,500. No details have yet emerged about the cost of the large units Tesla is reportedly supplying to companies including Apple and Google to help manage their power supplies.

“Electricity is way too cheap to store in an expensive battery,” Andrea said. “It’s like saying I’m going to be storing my potatoes in a safe. Potatoes are too cheap to store in a safe.”

But Andrea is sold on the idea that batteries are part of a more efficient energy future. He is currently involved in a new project in Boulder to install batteries in homes, in order to ease the strain on power plants and avoid costly rewiring as the sizes of neighborhoods change.

Felix Kramer, a clean energy entrepreneur in California, said he hopes Musk’s presentation on Thursday evening changes minds.

“Tesla demolished the idea that EVs [electric vehicles] were golf carts,” Kramer said. “And maybe they’re about to do it again now. Maybe they’re about to demolish the idea that we can’t switch from coal and gas to wind and solar because of reliability issues. If they convince consumers, that changes the conversation.”

But Andrea and Kramer are enthusiastic about the possibility of greater infrastructure improvements with greater adoption of electric cars. Power provision could get a lot more efficient if cities can be persuaded to draw power from those car batteries, as well as supplying it. That would provide electricity and diminish local reliance on expensive, fossil fuel-powered generators during times of peak demand – when everyone in New York turns on the air conditioner, for example. Nissan is already trying to do this with the Leaf in Japan.

“In a home, the cost of the storage becomes much more important,” Andrea said. “It solves so many problems – the power company no longer has to turn on a dirty power plant during high-demand times. You can use the present wire infrastructure.”

If those sound like lofty goals, they had frankly better be: Musk will have to impress a great many people in order to justify the gobs of money the state of Nevada is giving him – the gigafactory will be allowed to operate essentially tax-free for 10 years and won’t pay property taxes for another 10 afterward. Beyond even that, the state is giving Tesla m in transferable tax credits, which the company can sell to other businesses in the region.

Nor is it the first time Musk has asked the government to chip in: SpaceX receives 5m in help from Nasa.

Still, if Musk’s batteries can merge wind, solar and electric car power into existing grids, that would constitute tremendous economic savings for cash-strapped municipalities everywhere.

“This is within the power of humanity to do,” Musk told the large crowd gathered at Tesla’s design center in a Los Angeles suburb on Thursday. “We have done things like this before. It is not impossible.”

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The way we live now: the rise of the energy-producing home

March 20th, 2015

Powered by Guardian.co.ukThis article titled “The way we live now: the rise of the energy-producing home” was written by Elisabeth Braw, for theguardian.com on Monday 16th March 2015 13.49 UTC

Imagine living in a house that contributed to society: a house that produced energy, while consuming none itself. Well, imagine no more. After perfecting the “passivhaus”, which consumes minimal energy, engineers and architects have developed the energy positive house.

Generating energy is one thing, building a house is another. But with its plant-decorated walls and enormous double-glazed windows, the ArchiBlox Positive House, introduced in Melbourne’s City Square last month, looks elegant and modernist. “The trick is to make the sustainable and performance products visually pleasing while also practical,” reports David Martin, construction director of the ArchiBlox Positive House – the world’s first pre-fab energy positive house.

Rooftop solar panels and cooling tubes generate energy and regulate the temperature, while double-glazed windows and thick walls conserve energy. The end result: surplus power.

Energy producing house diagram
How an energy-producing home works. Photograph: Snøhetta

The ArchiBlox team is not alone in successfully completing the energy positive challenge. The German city of Königsbrunn, working in collaboration with the Augsburg University of Applied Sciences and a local gas and electricity company, is finalising the cube-like Visioneum in the central square, where city officials hope its presence will inspire residents to think about their household energy consumption.

At the University of California, Berkeley, students working in collaboration with Honda have developed yet another concept, the Honda Smart Home, which looks more like a typical terraced house, but which generates surplus energy the same way as the ArchiBlox and the Visioneum: by radically conserving it while generating more than it needs though solar panels.

Students at the Delft University of Technology, meanwhile, have invented a highly innovative “skin” that can be attached to existing houses with similar results. And in Norway, architecture firm Future Built has managed to turn two ordinary office buildings into energy-generating ones, cutting their energy use by 90% through additional insulation and the use of sensors to control light and heating. Here, too, solar panels on the roof provide energy that can be sold back to the grid.

With cars and homes accounting for 44% of greenhouse gasses in United States (and similar percentages in Europe), it’s no surprise that researchers and architects are trying to find ways of making homes more energy-efficient.

“The development of smart technologies, like the Google Nest, is making energy savings more convenient for users by allowing for control over temperatures in the house while you are away from the house, and allowing temperatures to follow your daily routines”, notes Esben Alslund-Lanthén, an analyst at the Danish sustainability thinktank Sustainia.

ZEB house
The ZEB house. Photograph: EVE

Kristian Edwards says building a plus-house is technically straightforward. “We calculated how many square meters of solar panels we needed and optimised the angle of the roof to get maximum solar yield,” he reports. “But plus-houses are also about minimising energy consumption, so we used as much recycled material as possible, such as whole bricks from a barn nearby.” With its box-like wooden top floor slanted over the lower floor for maximum sun exposure, Snøhetta’s experiment – the ZEB Multi-Comfort House, located in the Norwegian city of Larvik – boasts a visually striking appearance.

There’s just one thing: the cost. “Cost is always a factor when building houses that are taking advantage of the newest technology”, notes Alslund-Lanthén. “Plus-houses will likely remain more expensive than conventional houses, but on the other hand the owners will benefit from lower utility bills throughout the lifetime of the house, and in many cases from added benefits such as a better indoor climate due to improved ventilation, more daylight and better insulation.”

But Edwards, an architect at the Snøhetta architechture firm in Oslo, argues that plus-houses don’t have to be expensive, noting that a ZEB-style house may only cost 25% more to build than a similar, newly-designed home. The dropping cost of photovoltaic cells will also aid the advance of plus-houses.

Either way, utility companies are currently developing new payment models that will allow home owners to pay back the cost of the new technologies through energy savings. Other plus-house owners may opt to sell their surplus energy to the grid. At the ZEB house, in turn, surplus energy will power the electric car that future residents may own.

What’s life in a plus-house like? Norwegian families have volunteered to test the ZEB house for three months each and will report their findings to Edwards and his Snøhetta colleagues. And David Martin is about to find out for himself, having signed up to live in his ArchiBlox construction with his young family for the next 24 months.

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Fossil fuels are way more expensive than you think

March 19th, 2015

Powered by Guardian.co.ukThis article titled “Fossil fuels are way more expensive than you think” was written by Dana Nuccitelli, for theguardian.com on Wednesday 18th March 2015 13.00 UTC

A new paper published in Climatic Change estimates that when we account for the pollution costs associated with our energy sources, gasoline costs an extra .80 per gallon, diesel an additional .80 per gallon, coal a further 24 cents per kilowatt-hour, and natural gas another 11 cents per kilowatt-hour that we don’t see in our fuel or energy bills.

Levelized generation costs for new US electricity generation and environmental damages by fuel type. Source: Climatic Change, Shindell (2015)
Levelized generation costs for new US electricity generation and environmental damages by fuel type. Source: Climatic Change, Shindell (2015).

The study was done by Drew Shindell, formerly of Nasa, now professor of climate sciences at Duke University, and Chair of the Scientific Advisory Panel to the Climate and Clean Air Coalition. Shindell recently published research noting that aerosols and ozone have a bigger effect on the climate in the northern hemisphere, where humans produce more of those pollutants.

That research led Shindell to question current estimates of the true costs of our energy sources. Much research has gone into estimating the social cost of carbon, which attempts to account for the additional costs from burning fossil fuels via the climate damages their carbon pollution causes. However, this research doesn’t account for the costs associated with other air pollutants released during fossil fuel combustion.

For example, depending on how much more we value a dollar today than in the future (a factor known as ‘discount rate’), Shindell estimates carbon pollution costs us per ton of carbon dioxide emitted in climate damages, and another in additional climate-health impacts like malnutrition that aren’t normally accounted for.

But Shindell also estimates that carbon emissions are relatively cheap compared to other fossil fuel air pollutants. For example, sulfur dioxide costs ,000 per ton, and nitrous oxides ,000 per ton! However, less of these other pollutants are released into the atmosphere during modern fossil fuel combustion.

Electric Cars Cheaper than Gasoline Powered

For an average American car (26 miles per gallon), Shindell estimates that the air pollution emissions altogether cost us 00 in damages per year. In comparison, emissions from energy to power an electric Nissan Leaf would cost us 0 even if purely powered by coal, and 0 if fueled by electricity supplied entirely from natural gas. These costs would become negligible if the electricity came from renewable or nuclear power. Electric vehicles (EVs) are clearly the winners in this cost comparison.

Hence environmental damages are reduced substantially even if an EV is powered from coal-fired electricity, although they are much lower for other electricity sources

The Needed Energy Transition May Have Begun in 2014

The key conclusion from Shindell’s study is that fossil fuels only seem cheap because their market prices don’t reflect their true costs. In reality they are remarkably expensive for society, but taxpayers pick up most of those costs via climate damages and other health effects. Those who argue that we need to continue relying on fossil fuels – like former popular science writer Matt Ridley – just aren’t accounting for the costs of pollution.

These air pollution costs are effectively a massive subsidy, and Shindell likely underestimated their size. When I asked Shindell if he had accounted for recent research by Moore & Diaz showing that climate change slows economic growth, he said,

I saw the Moore and Diaz paper, which was quite interesting, but after my paper had already been accepted so it didn’t make it in there. Indeed if growth is slowed by climate change as in their study, the associated social costs could be much larger … But in general, this is only one of several possible reasons that my values are likely conservative as I’ve left out many things that I didn’t know how to put a price on. That includes the influence of pollution on cognitive function decline, on IQ, and on mental health, the influence of energy on freshwater resources, on national security (e.g. military spending related to oil/gas supplies), the impact of climate change on biodiversity, the effects of ocean acidification, etc.

This research shows that we need to transition away from fossil fuels not just to mitigate the risks associated with climate change, but to reduce the economic and health impacts of air pollution in general. Fortunately there was some good news this week suggesting that we may be on our way to making this transition. The International Energy Agency (IEA) reported,

global emissions of carbon dioxide from the energy sector stalled in 2014, marking the first time in 40 years in which there was a halt or reduction in emissions of the greenhouse gas that was not tied to an economic downturn … In the 40 years in which the IEA has been collecting data on carbon dioxide emissions, there have only been three times in which emissions have stood still or fallen compared to the previous year, and all were associated with global economic weakness: the early 1980’s; 1992 and 2009. In 2014, however, the global economy expanded by 3%.

When we examine the data, 2014 indeed stands out. With 3% GDP growth, it’s the first year on record that energy-related CO2 emissions didn’t increase and GDP nevertheless grew by more than 2%.

Annual percent GDP growth (data from World Bank) and annual percent CO2 growth from energy (data from IEA).  Created by Dana Nuccitelli.
Annual percent GDP growth (data from World Bank) and annual percent CO2 growth from energy (data from IEA). Created by Dana Nuccitelli.

The IEA reports that the stagnation in carbon pollution stemmed from a transition away from fossil fuels rather than a drop in energy use due to poor economic conditions, as had been the case in previous years where CO2 emissions didn’t grow.

The IEA attributes the halt in emissions growth to changing patterns of energy consumption in China and OECD countries. In China, 2014 saw greater generation of electricity from renewable sources, such as hydropower, solar and wind, and less burning of coal. In OECD economies, recent efforts to promote more sustainable growth – including greater energy efficiency and more renewable energy – are producing the desired effect of decoupling economic growth from greenhouse gas emissions.

It’s important not to over-interpret a single data point, but it’s a promising sign that carbon pollution emissions didn’t grow in 2014 while the global economy did. This is the sort of “decoupling” of GDP and CO2 that needs to happen for a successful transition away from fossil fuels. Signs that we may have reached peak coal production are also encouraging.

As Shindell’s research shows, it’s an important transition for us to make in order to preserve a livable climate and a healthy economy.

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The argument for divesting from fossil fuels is becoming overwhelming

March 17th, 2015

Powered by Guardian.co.ukThis article titled “The argument for divesting from fossil fuels is becoming overwhelming” was written by Alan Rusbridger, for theguardian.com on Monday 16th March 2015 13.06 UTC

The world has much more coal, oil and gas in the ground than it can safely burn. That much is physics.

Anyone studying the question with an open mind will almost certainly come to a similar conclusion: if we and our children are to have a reasonable chance of living stable and secure lives 30 or so years from now, according to one recent study 80% of the known coal reserves will have to stay underground, along with half the gas and a third of the oil reserves.

If only science were enough.

If not science, then politics? MPs, presidents, prime ministers and members of congress are always telling us (often suggesting a surrender of civil liberties in return) that their first duty is the protection of the public.

But politics sometimes struggles with physics. Science is, at its best, long term and gives the best possible projection of future risk. Which is not always how politics works, even when it comes to our security. Politicians prefer certainty and find it difficult to make serious prudent planning on high probabilities.

Climate change petition

On climate change, the public clamour is in inverse proportion to the enormity of the long-term threat. If only it were the other way round. And so, year after year, the people who represent us around the UN negotiating tables have moved inches, not miles.

When, as Guardian colleagues, we first started discussing this climate change series, there were advocates for focusing the main attention on governments. States own much of the fossil fuels that can never be allowed to be dug up. Only states, it was argued, can forge the treaties that count. In the end the politicians will have to save us through regulation – either by limiting the amount of stuff that is extracted, or else by taxing, pricing and limiting the carbon that’s burned.

If journalism has so far failed to animate the public to exert sufficient pressure on politics through reporting and analysis, it seemed doubtful whether many people would be motivated by the idea of campaigning for a paragraph to be inserted into the negotiating text at the UN climate talks in Paris this December. So we turned to an area where campaigners have recently begun to have marked successes: divestment.

There are two arguments in favour of moving money out of the biggest and most aggressive fossil fuel companies – one moral, the other financial.

The moral crusaders – among them Archbishop Desmond Tutu – see divestment from fossil fuels in much the same light as earlier campaigners saw the push to pull money out of tobacco, arms, apartheid South Africa – or even slavery. Most fossil fuel companies, they argue, have little concern for future generations. Of course, the companies are run by sentient men and women with children and grandchildren of their own. But the market pressures and fiduciary duties involved in running public companies compel behaviour that is overwhelmingly driven by short-term returns.

So – the argument goes – the directors will meanwhile carry on business as usual, no matter how incredible it may seem that they will be allowed to dig up all the climate-warming assets they own. And, by and large – and discounting recent drops in the price of oil – they continue to be reasonably good short-term businesses, benefiting from enormous subsidies as they search for even more reserves that can never be used.

What is fossil fuel divestment and why does it matter?

The pragmatists argue the case on different grounds. It is simply this: that finance will eventually have to surrender to physics.

If – eventually – the companies cannot, for the sake of the human race, be allowed to extract a great many of the assets they own, then many of those assets will in time become valueless. So people with other kinds of fiduciary duty – people, say, managing endowments, pension funds and investment portfolios – will want to get their money out of these companies before the bubble bursts.

Alan Rusbridger in London, for the launch of the Guardian's climate change campaign.
Alan Rusbridger in London, for the launch of the Guardian’s climate change campaign. Photograph: David Levene

Of course, the financial risk comes not simply from the threat of regulation, but could also be hastened by the march of alternative clean energy. Global investment in clean energy jumped 16% in 2014 to £205bn, but because of the rapid drop in the price of that energy (the cost of solar has dropped by two-thirds in 6 years), the money invested last year bought almost double the amount of electricity capacity as in 2011.

So there’s a risk calculation to be done by anyone invested in fossil fuels – which, one way or another, is probably most of us. Get out too early and you might forgo the reasonable returns based on current performance and the book value of the assets that are notionally exploitable.

But what of the risk of being a late exiter? Do you wait and judge when the politicians could finally summon the will to start making regulatory and market interventions … and then get out? And at the same time as everyone else is trying to do the same?

This is why the divestment movement has changed from being a fringe campaign to something every responsible fund manager can no longer ignore. How could they, when even the governor of the Bank of England, Mark Carney, has warned that the “vast majority of reserves are unburnable” and the bank itself is conducting an inquiry into the risk that inflated fossil fuel assets pose to the stability of the financial system?

When the president of the World Bank, Jim Yong Kim, urges: “Be the first mover. Use smart due diligence. Rethink what fiduciary responsibility means in this changing world. It’s simple self-interest. Every company, investor and bank that screens new and existing investments for climate risk is simply being pragmatic”?

When the Bank of England’s deputy head of supervision for banks and insurance companies, Paul Fisher, warns, as he did this month: “As the world increasingly limits carbon emissions, and moves to alternative energy sources, investments in fossil fuels – a growing financial market in recent decades – may take a huge hit”?

Or listen to Hank Paulson, no bleeding liberal, but secretary of the Treasury under Bush and former CEO of Goldman Sachs: “Each of us must recognise that the risks are personal. We’ve seen and felt the costs of underestimating the financial bubble. Let’s not ignore the climate bubble.”

President Obama puts it most pithily: “We’re not going to be able to burn it all.”

So the argument for a campaign to divest from the world’s most polluting companies is becoming an overwhelming one, on both moral and pragmatic grounds. But the divestment movement is sometimes misunderstood. The intention is not to bankrupt the companies, nor to promote overnight withdrawal from fossil fuels – that would not be possible or desirable.

Divestment serves to delegitimise the business models of companies that are using investors’ money to search for yet more coal, oil and gas that can’t safely be burned. It is a small but crucial step in the economic transition away from a global economy run on fossil fuels.

The usual rule of newspaper campaigns is that you don’t start one unless you know you’re going to win it. This one will almost certainly be won in time: the physics is unarguable. But we are launching our campaign today in the firm belief that it will force the issue now into the boardrooms and inboxes of people who have billions of dollars at their disposal.

It’s clear, from our researches over the past few weeks, that many company directors and fund managers have had a nagging feeling that this is something coming up the agenda that – one day – they will have to think about. As the Guardian’s campaign mounts, we hope they will appreciate that there is some urgency about the choices they make.

Who will take the lead? Some huge endowments and investment funds have already announced that they will be decarbonising their portfolios, exiting fossil fuels altogether and/or investing in cleaner alternatives.

They include the Rockefeller Brothers Fund; Stanford, Glasgow and Australian National Universities; the British Medical Association; Norway’s Government Pension Fund Global, which has sold off 32 coal companies on climate and environmental grounds; AP4, the giant Swedish pension fund; and many other faith groups, local councils and asset managers. The World Council of Churches has committed not to invest.

Our own campaign will give readers the information they need to make their own investment decisions and to apply pressure on the workplaces, unions, schools, colleges, churches, NGOs, pension advisers and charities in their lives. But we also want to try to change minds at one or two institutions that have demonstrated inspiring thought leadership in other spheres of life.

Professor Jeremy Farrar, director of the Wellcome Trust.
Professor Jeremy Farrar, director of the Wellcome Trust. Photograph: James Drew Turner/Guardian

The Wellcome Trust handles a portfolio of more than £18bn and invests around £700m a year in science, the humanities, social science education and medical research. The Bill and Melinda Gates Foundation has an endowment of .5bn. Last year it gave away .9bn in grants towards health and sustainable development.

In 2014 the Wellcome Trust had £564m invested in Shell, BP, Schlumberger, Rio Tinto and BHP Billiton alone. The Gates Foundation has a financial stake of over bn in fossil fuel companies.

Bill and Melinda Gates.
Bill and Melinda Gates. Photograph: Oli Scarff/Getty Images

By most standards, these are huge sums of money, helping to fund the extraction of unusable oil gas and coal on a massive scale. But, as a proportion of the foundations’ own endowments, they are relatively small – just a few percent for the fossil fuel investments we know about. So they could, we think, be divested without damaging overall returns. Indeed, we think they could achieve higher and, over time, safer returns by putting their money into other investments with real opportunities for growth in a world tackling climate change

Because both foundations are a) so progressive in their aims and actions and b) have human health and science at the heart of everything they do, we hope they, of all institutions, will see the force of the call for them to move their money out of a sector whose actions, if unchecked, could cause the most devastating harm to the health of billions. A landmark report by the Lancet and University College London concluded in 2009: “Climate change is the biggest global health threat of the 21st century.”

The ask of them is, we think, both modest and simple. We understand that fund managers do not like to make sudden changes to their portfolios. So we ask that the Gates Foundation and Wellcome Trust commit now to divesting from the top 200 fossil fuel companies within five years. And that they immediately freeze any new investment in the same companies.

We will, of course, suggest that the Guardian Media Group does the same, and keeps you informed about its own deliberations and decisions.

Please sign, retweet and generally spread news about the petition. In everything we say to these foundations, we will emphasise that we come in admiration for what they have done, and continue to do for human health and wellbeing. They aren’t the “bad guys”. But they could certainly show themselves to be the good guys in this matter of life and death.

Petition sign-up

One final thing. This campaign is going to be backed up by much reporting and analysis. We would be very pleased to hear from anyone working in the fossil fuel industries at a senior level, either currently or recently. We are interested, for instance, to learn about internal discussions and papers about the state of knowledge and debate about the environmental harm caused by the extractive industries. You can email me confidentially at alan.rusbridger@theguardian.com; see my PGP key on @arusbridger on Twitter; or use the Guardian’s encrypted securedrop platform, which enables anyone to send us documents without being traced.

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Shale gas should be at centre of next government’s energy policy – Tim Yeo

March 13th, 2015

Powered by Guardian.co.ukThis article titled “Shale gas should be at centre of next government’s energy policy – Tim Yeo” was written by Fiona Harvey, for theguardian.com on Thursday 12th March 2015 06.01 UTC

Shale gas exploration can be environmentally sound, and should be the centrepiece of the next government’s energy policy, the Conservative’s most senior green-leaning MP has urged.

Tim Yeo, the Tory former minister, and chairman of parliament’s energy and climate committee, said the time had come to make the “green” case in favour of fracking, and that the incoming government after the general election must seize on the technology for the good of the UK’s environment and economy.

“There is an opportunity now, and it might not exist in a few years [when other European countries have developed fracking],” he told the Guardian. “People who think fracking is an environmental problem are mistaken.”

He said that the regulations governing fracking in this country were sound, and that related problems such as tremors were very small, and there would be no danger to the water supply here, as there has been in some places in the US. “Once people see that horizontal drilling is not causing earthquakes or poisoning the water they will be satisfied,” he said.

While warning that shale gas would not be the “transformational” industry it has been in the US, where the widespread exploitation of fracking technology has sent gas and oil prices tumbling, Yeo said it would be cheaper for the UK and have less impact on the climate than importing gas.

Fracking involves blasting water, sand and chemicals at dense rock to release tiny bubbles of gas trapped within, but the technology has been slow to be adopted in the UK after a series of hitches in the first targeted sites.

At the general election, Yeo will leave parliament after 32 years, having been de-selected by his constituency party, apparently for spending more time on national than local issues. A former environment minister and shadow environment secretary, he is one of the longest-standing and most influential champions of green issues among the ranks of Tory MPs, and chairs the influential parliamentary cross-party select committee on energy and climate change.

He makes his last major speech on energy and the environment on Thursday, at a conference that will highlight some of the committee’s progress on making policy recommendations in the current parliament.

He has chosen to make the green case for shale gas as his parting shot, because he believes the coalition has been too timid in persuading the public of the value of shale. Yeo has no current financial interest in shale and does not intend to take up any such interests on leaving parliament.

He will also use Thursday’s speech to argue strongly in favour of onshore wind turbines, which he will say are a cheap and reliable form of low-carbon energy. David Cameron has vowed to end subsidies for onshore wind, despite polls showing most people are in favour of the turbines.

Yeo said that reducing the UK’s greenhouse gas emissions would still leave the country reliant on gas for years to come, and that fulfilling heating and power needs using domestic sources of gas would be both lower in emissions and cheaper than importing liquefied natural gas from overseas.

“I yield to no one in my desire to [tackle climate change] but the fact is we will not get by without consuming a lot of gas between now and the 2030s, so better to have a domestic source than to import it,” he said. “I do not think that a single extra cubic metre of gas will be consumed in the UK because of a domestic fracking industry.”

He said many green groups were opposing fracking because of a “visceral reaction to anything involving fossil fuels”, but he said the UK could meet its commitments on carbon reduction while producing gas from shale.

He will tell the conference: “The next government must stand up to the fuzzy-headed ideological fringes that oppose fracking. The greens opposed to fracking do not have evidence on their side.”

He will add: “Too many of us take the ready availability of energy, and the prosperity it makes possible, for granted. We expect electricity and gas to be constantly available – but we won’t accept the energy infrastructure on which that availability depends.”

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