The Ecologist

 

renewables: 1/25 of 407
next »

The smoke rises above Fort McMurray, Alberta, Canada - no, not from the recent fires that afflicted the city, but from the highly polluting plant processing tar sand into oil. Photo: kris krüg / DeSmogBlog via Flickr (CC BY-NC-ND).

Renewables versus climate change - the battle heats up!

Jeremy Leggett

7th June 2016

The renewable energy revolution is in full swing, writes Jeremy Leggett, with costs falling to new lows, deployment of wind and solar surging to unprecedented highs, and confidence ebbing away from fossil fuels. But global warming is also accelerating, with global temperature records broken every month for a year. Will the energy transition happen in time to avert catastrophe? more...

Save our soils!

John Quinton

3rd June 2016

Britain's soils are in a bad way, writes John Quinton, and the government is doing little to help - indeed its policies are making the problems worse. So concludes yesterday's Environment Audit Committee report on soil health. But are ministers bothered? more...
Wind farms such as these in Palm Springs, California could be the answer to low-cost energy throughout the US. Photo: Prayitno Hadinata via flickr (CC BY-ND 2.0)

Renewable Energy Closes ‘The Gap'

2nd June, 2016

The REN 21 Renewables Global Status Report

The Renewables 2016 Global Status Report just published by REN21 - The Renewables Energy Policy Network for the 21st Century - shows that renewables are now firmly established as competitive, mainstream sources of energy in many countries around the world, closing the gap between the energy haves- and have-nots more...
The key to further big increases in wind and solar capacity is to store surplus power as gas, then burn it CCGT gas power stations when needed to meet demand. Photo: Royd Moor wind farm, Yorkshire, by steve p2008 via Flickr (CC BY).

Renewable energy can 'keep the lights on' - here's how

David Elliott

6th May 2016

Critics of renewable energy sources like wind and solar claim that they are inefficient, unreliable and need to be backed up by coal and gas, writes David Elliott. But we have the technology to match green power supply and demand at affordable cost without fossil fuels - by deploying the 'smart grid', using 'green gas' made from surplus power, and raising energy efficiency. more...
The Zaporozhye nuclear power station seen from the 'Nikopol' bank of the river Dnieper, Ukraine. Photo: Ralf1969 via Wikimedia Commons (CC BY-SA).

Thirty years after Chernobyl, what chance of a post-nuclear Ukraine?

Jan Haverkamp & Iryna Holovko

26th April 2016

The Chernobyl nuclear catastrophe may have scared most of the world off nuclear power, write Jan Haverkamp & Iryna Holovko. But mysteriously, not Ukraine, where the reactor meltdown actually took place. Thirty years on more than half of Ukraine's electricity is still nuclear, while the power sector is dominated by powerful oligarchs. So what are the chances of a post-nuclear Ukraine? more...
The futuristic visitor centre planned for the Swansea Bay Tidal Lagoon.

Swansea Lagoon is our promised green energy future - so why isn't it in the Energy Bill?

Stephen Tindale

4th May 2016

Tidal lagoons could generate 8% of the UK's electricity, writes Stephen Tindale, and go on doing so for 120 years to come. With the Hinkley C nuclear project looking ever more dicey, and with promises to shut down coal fired generation by 2025, a promised new tidal lagoon In Swansea Bay would come in very useful. So why hasn't the government included it in the Energy Bill? more...
Large wind and solar farms can be planned and built in 2-3 years (compared with 10-15 years for nuclear) and are ready now to replace fossil and nuclear electricity. Photo: Brookhaven National Laboratory via Flickr (CC BY-NC-ND)

Renewable energy versus nuclear: dispelling the myths

Mark Diesendorf

19th April 2016

Don't believe the spurious claims of nuclear shills constantly doing down renewables, writes Mark Diesendorf. Clean, safe renewable energy technologies have the potential to supply 100% of the world's electricity needs - but the first hurdle is to refute the deliberately misleading myths designed to promote the politically powerful but ultimately doomed nuclear industry. more...
'Getting out of nuclear - we can do it!', reads the banner at this 2011 protest against Hinkley C. French Energy Minister Segolene Royal might just share the opinion. Photo: Campaign for Nuclear Disarmament via Flickr (CC BY).

French energy minister: Hinkley C must not 'dry out' renewables funding

Angelique Chrisafis & Chris Johnston

8th April 2016

France's energy minister Ségolène Royal has backed union demands for the EDF's Hinkley C project in Somerset to be re-examined, write Angelique Chrisafis & Chris Johnston - adding that the project must not go ahead if it would 'dry out' funds needed for EDF's renewable energy program. more...
The Thar desert in Rajasthan, India. Photo: Nick Kenrick via Flickr (CC BY-NC-SA).

Protecting God's Creation: churches commit to the green energy transition

Tim Gee / Christian Aid

19th April 2016

Pope Francis's famous encyclical on climate change is part of a broad global shift to environmental awareness among faith communities, writes Tim Gee. Christian churches and congregations are among those joining the fast growing fossil fuel divestment movement, switching to renewable energy, and reaching out to wider society to help protect our home planet, Earth. more...
Glamorous? More than you think. Hot water heaters that respond to grid signals could be the key to stabilising the grid and using up surplus energy from peaking renewables. Photo: marlb0r0 man via Flickr (CC BY-NC-SA).

Water heaters as batteries: as sexy as a Tesla?

Margaret McAll / RMI

6th April 2016

Tesla's Powerwall battery may be the poster-boy of the forthcoming dynamic power grid, writes Margaret McAll. But a far more accessible, low cost solution beckons: grid-interactive water heaters can soak up excess power from peaking renewables, reduce expensive peak demand, and cut power companies' need to invest in generation and distribution. more...
Turbine at EDF Renewable Energy's Bobcat Bluff Wind Project, spanning approximately 14,000 contiguous acres, in Archer County, Texas. Photo: EDF Renewable Energy.

EDF shows that wind makes better sense than nuclear

Chris Goodall

1st April 2016

EDF in the UK may be propelled by its disastrous nuclear ambitions, writes Chris Goodall. But across the Atlantic it's another story: the company is the US's biggest wind developer, and selling its power, profitably, for under 40% of the price it has been promised for Hinkley C, including federal tax credits. more...
Global emissions trajectory 1975-2015, showing standstill in 2014 and 2015. Image: IEA.

Global emissions stand still as temperatures soar

Alex Kirby

18th March 2016

For the second year running CO2 emissions flatlined even as the global economy was growing at around 3%, writes Alex Kirby. But sharply rising temperatures show the need for further massive renewable energy deployment to actually bring emissions down. more...

renewables: 1/25 of 407
next »

This wind farm in Mecklenburg-Vorpommern allows the entire state to run on 100% renewable energy. Photo: Clemens v. Vogelsang via Flickr (CC BY).

Dispelling the nuclear 'baseload' myth: nothing renewables can't do better!

Mark Diesendorf

10th March 2016

The main claim used to justify nuclear is that it's the only low carbon power source that can supply 'reliable, baseload electricity', writes Mark Diesendorf - unlike wind and solar. But not only can renewables supply baseload power, they can do something far more valuable: supply power flexibly according to demand. Now nuclear power really is redundant. more...
Wind turbines in Copenhagen, Denmark. Photo: CGP Grey via Flickr (CC BY).

Denmark reaching its goal to be fossil fuel free through renewable energy

Laurie Guevara-Stone / RMI

5th March 2016

The small country of Denmark is making a big commitment to renewables, aiming to be fossil-fuel free by 2050, writes Laurie Guevara-Stone. A large expansion of mainly offshore wind power features large, along with moves to a 'smart grid', high vehicle taxes and energy conservation initiatives. Denmark is well on its way to becoming the energy leader of the EU. more...
For some decades to come, old and new energy systems will have to maintain an uneasy coexistence - as at Interstate 10 near Palm Springs, California. Photo: Kevin Dooley via Flickr (CC BY).

The transition to 100% renewable energy: because we have no choice

Richard Heinberg

18th March 2016

It will take decades to completely leave fossil fuels, writes Richard Heinberg. But we can do it, starting with the easy stuff: going big time for wind and solar, raising energy efficiency, replacing oil-fuelled vehicles, and moving to organic farming. But deeper changes will follow as we transition to a more enduring sustainability - consuming better, and much less. more...
Solar heating evacuated tubes being installed on a roof in Thorton Heath, England. Photo: szczel via Flickr (CC BY-NC-SA).

Would you believe it? Yet another UK solar energy cut!

Oliver Tickell

7th March 2016

After ten massive renewable energy cuts that are leaving the UK falling well short of EU renewable energy targets, an eleventh! The axe is now falling on solar heating, writes Oliver Tickell - even though it's meant to be at the core of the government's renewable energy strategy. more...
The technology is neat - but can it ever be industrialised? JBEI researcher using synthetic biology to engineer microbes to ferment complex sugars into advanced biofuels. Photo: Roy Kaltschmidt / Lawrence Berkeley National Laboratory via Flickr (CC BY-NC-

Oil: $30-35 per barrel. Synthetic biology diesel: $3,180 to $7,949 per barrel. Game over?

Almuth Ernsting

29th February 2016

A synthetic biology plant producing the anti-malarial drug artemisinin has just shut down as it's much cheaper to use wormwood grown by African farmers, writes Almuth Ernsting. The technology is even further from making affordable diesel, with a production cost of $20-50 per litre. No wonder investors are losing patience - and confidence - in loss-making synbio companies. more...
Wind turbines in Iowa, USA, one of the states that's leading the way on wind energy. Photo: Don Graham via Flickr (CC BY-SA).

Supreme Court can't hold back the renewable energy revolution!

Linda Pentz Gunter

19th February 2016

The attempt by the US Supreme Court to stall the White House Clean Power Plan is being thwarted on the ground, writes Linda Pentz Gunter. The numbers show that new renewable energy installation around the US is outpacing even natural gas - leaving coal in the dust, and new nuclear at a big round zero. more...
More wind farms like this, combined with 'wind to gas' plants, gas storage and CCGT power stations, and you could have the same electricity production profile as the Hinkley C nuclear power station - more quickly and at lower cost and with lower financial

Wind power with 'windgas' is cheaper and greener than Hinkley Point C nuclear plant

Energy Brainpool

17th February 2016

If the UK really wants 3.2GW of 'baseload' power in Somerset, then the Hinkley C nuclear power station is not the only way, write Marie-Louise Heddrich, Thorsten Lenck and Carlos Perez Linkenheil. Wind power with 'wind to gas' plant and CCGT gas power stations could do the same - faster, cheaper, more flexibily, and at much lower technical and financial risk. more...
Look, no smoke! London's Battersea power station was closed in 1983 and survives only as an architectural icon. Will all coal power stations end up like this? Photo: Mark Colliton via Flickr (CC BY-NC-ND)

Fossil fuels a bad bet due to market changes, investors warned

Paul Brown

16th February 2016

The ever-falling cost of renewable energy could leave investors in coal, gas and oil seriously out of pocket as demand for fossil fuels falls away, writes Paul Brown. In the wake of the Paris Agreement and shrinking markets in major importing countries, the smart money is moving into renewables. more...
How long before all filling stations go this way? Photo: Wayne Stadler vis Flickr (CC BY-NC-ND).

The new 'peak oil'? A dollar invested in solar yields more energy than a dollar invested in oil

Chris Goodall

13th February 2016

According to oil company executives, oil is going to be a major energy source to 2100 and beyond. So after hearing an oil man make his case, Chris Goodall went home and crunched some numbers. Money invested in solar power already produces more energy than if it's put into oil exploration and production, and the gap is only going to widen from here. Is this the new 'peak oil'? more...
A solar-paneled shoebox on West 123rd Street, Central Harlem, Manhattan Island. Photo: Matt Green via Flickr (CC BY-NC-SA).

Five US states are leading the way in solar power initiatives

Aaron Viles / DeSmogBlog

3rd March 2016

State action on solar power can make a big difference, writes Aaron Viles. Driven by ambitious renewable energy targets and the need to generate local growth industries of the future, five states stand out for their trend-setting policies that are accelerating the US's clean energy transition. more...
Artist's impression of the Swansea Bay Tidal Lagoon, which would, if built, generate almost 500 gigawatt hours of electricity per year. Image: preconstruct.com.

A green Wales is taking off - in spite of UK government policies

David Clubb

16th February 2016

Despite Cameron's promise to lead the 'greenest Government ever', the environment has taken a heavy bashing since the 2015 election, writes David Clubb - whether on oil, fracking, renewable energy or planning policy. But Wales is doing its best to follow a sustainable path, and demonstrating badly needed environmental leadership that the whole UK would do well to follow. more...
Earth and Moon. Photo: NASA ESA via Wikimedia (Public Domain).

A sustainable UK needs a 'one planet' Budget

Alan Simpson

5th February 2016

When Chancellor George Osborne delivers his Budget next month, we can be sure that climate and environment won't take a high priority, writes Alan Simpson. All the more reason for the Labour leadership to develop a new 'one planet' economics for the 21st century that delivers social justice and respects ecological limits. more...
Wind farms such as these in Palm Springs, California could be the answer to low-cost energy throughout the US. Photo: Prayitno Hadinata via flickr (CC BY-ND 2.0)

'Renewable energy highways' offer quick fix for US emissions

Tim Radford

2nd February 2016

Scientists say interstate energy 'highways' offer a simple approach to delivering low-cost electricity to where it’s needed throughout the US, writes Tim Radford. The best part? It's using clean, renewable energy sources, and it can be achieved in the near future using only existing, mature technologies. more...

ECOLOGIST COOKIES

Using this website means you agree to us using simple cookies.

More information here...

 

FOLLOW
THE ECOLOGIST