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Tag Archives: wind

Energy in the US: the rise of renewables

By Dave Elliott

Energy use and impacts are changing in the USA, in part due to progressive policies from Obama, but also because of structural changes in the energy economy. Carbon dioxide emissions from US energy sector have fallen 12% since 2005, mainly since there has been a decline in the use of coal, although its fall back has mostly due to an increase in the use of natural gas to generate electricity. However, renewables are also playing growing roles, supplying around 16% of US power, eclipsing nuclear (their output overtook that from nuclear in 2010) and they are expanding fast, hitting 17% in the first part of 2016. But all that could change when Trump takes power. (more…)

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German energy policy and phasing out coal

By Dave Elliott

The influential German Advisory Council on the Environment (SRU) has mapped out how it sees the future of coal. It notes that the Federal Government Coalition agreement (2013) states that: ‘the conventional power stations (lignite, coal, gas) remain an indispensable part of the national energy mix for the foreseeable future’, but it tries to put more flesh on that vague timescale, so as to better meet and exceed the 80% carbon reduction goals of the existing energy transition plan – it wants that raised to 95%. In particular it says that, with nuclear now being phased out (all of it by 2022), ‘an integrated energy policy should synchronise the phasing out of conventional power generation capacities and the increasing use of renewables’. (more…)

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Renewables: ‘an expensive disaster’

By Dave Elliott

We are spending too much on renewables and undermining competitiveness, so says a report Central Planning with Market Features: how renewable subsidies destroyed the UK electricity market, published by the Centre for Policy Studies. In it Rupert Darwall  says that recent energy policy represents the biggest expansion of state power since the nationalisations of the 1940s and 1950s, and is on course to be the most expensive domestic policy disaster in modern British history.

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Germany stays on course

 By Dave Elliott

Germany is sticking to its ambitious plan to get at least 80% of its electricity from renewables by 2050. As part of that, it aims to support the construction and operation of 20 offshore wind farms, 7 GW in all, and that plan recently received a boost, with the European Commission agreeing that it did not conflict with EU state aid rules. The 17 wind farms in the North Sea and three in the Baltic will further EU energy and environmental objectives without unduly distorting competition in the Single Market, the EC said.

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France – 100% renewable by 2050?

By Dave Elliott

France is heavily reliant on nuclear power, which supplies around 74% of its electricity, although some of that is in fact used to run the nuclear fuel system, including fuel fabrication and reprocessing. It has often been said that it would be impossible to phase out nuclear in France. The Hollande government has promised to cut the proportion back to 50%, and has a quite ambitious programmes for renewable energy (32% of all energy by 2030) and energy saving (a 50% cut in all energy use by 2050). But going further has often seemed a fantasy, not least in terms of cost. However that’s now changed, with a new government  report suggesting that it would be possible to move to 100% renewables.

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Green energy in the EU

By Dave Elliott

In January last year the European Commission (EC) suggested that the EU should cut carbon emissions by 40%. Although it’s conditional on other countries setting significant targets, it’s a bold target, leading the way forward. But sadly the EC faltered on setting ambitious specific targets for how to actually do it. It only raised the targeted share of renewables in primary energy to 27% by 2030, up from the existing 20% by 2020 target.

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Green power in Asia- Part 1

By Dave Elliott

Renewable energy is expanding even faster in the east than in the west, and in this and the next post I’ve tried to review the state of play, and the prospects for the future, in some key countries (China, India, Japan, and Korea), looking at some near 100% by 2050 scenarios. I start with China and India, both of which have large renewable energy expansion programmes, though China’s is the largest . (more…)

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Wind power in the UK- still on the up

By Dave Elliott

Wind energy is doing well in the UK. There were periods last year when the UK’s 11GW of wind plant met up to 15% of power demand, over-taking nuclear, and even briefly achieved 24%: www.carboncommentary.com/2014/10/06/wind-power-exceeds-nuclear-output-for-a-few-minutes/

While there have been no shortage of complaints about the alleged high cost, Cambridge Econometrics has calculated that wind plants saved the UK £579m in fossil fuel imports in 2013: www.camecon.com/Libraries/Downloadable_Files/The_impact_of_wind_energy_on_UK_energy_dependence_and_resilience.sflb.ashx (more…)

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Renewable Impacts

By Dave Elliott

It has been an eventful year for renewables. While progress continues apace, with renewables now supplying around 15% of electricity in the UK and 22% of global electricity, in this pre- Xmas post, rather than spelling out all the good news, I will look at some of the less good stories from the year- concerning wind power and CSP. (more…)

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Balancing variable renewables

By Dave Elliott

There is now a range of books looking at the technical and policy options available for managing the use of variable energy resources such as wind and solar energy. The pioneering text in this area was Earthscan’s “Renewable Electricity and the Grid” from 2007, edited by Godfrey Boyle , with contributions from many of the UK top experts. But the field has since expanded with, for example, a lot of new work being done in the US. (more…)

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