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Tag Archives: renewable energy

US gets to grips with renewables

By Dave Elliott

The US currently gets about 17% of its electricity from renewables, including hydro, and its potential for rapid expansion is huge. A new study from NOAA, the US National Oceanic and Atmospheric Administration, says that a ‘US transition to a reliable, low-carbon, electrical generation and transmission system can be accomplished with commercially available technology and within 15 years’, according to Alexander MacDonald, one of the lead authors of the report, which was published in Nature Climate Change. But it would need supergrid  ‘electron superhighways’ to transmit electricity across the country.

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Our Renewable Future – some US views

By Dave Elliott

Several organizations have formulated proposals for transitioning to 100% renewable energy, nationally or globally. In one of the most recent, developing on their earlier 100% global scenario, US academics Mark Jacobson and Mark Delucchi and their team have spelt out how 139 countries can each generate all the energy they will need from wind, water and solar (WWS) technologies by 2050, in substantial detail.

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Renewable growth continues

By Dave Elliott

While most future projections show global renewable energy expanding rapidly, some are more cautious and also present optimistic views on oil futures. For example, BP’s Energy Outlook 2016 sees oil still booming up to 2035, although it does see the use of coal falling and renewables expanding: ‘Renewables are expected to account for more than a third of EU power generation by 2035’. However, welcome though that view is, Carbon Brief said, ‘this sits awkwardly against the fact that renewables already supplied a third of EU power in 2014 and continue to expand rapidly’.  

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China accelerates renewables

By Dave Elliott

The Chinese National Renewable Energy Centre (CNREC) says China could get 85% of its electricity and 60% of all its primary energy from renewables by 2050, with wind and solar PV both exceeding 2TW of installed capacity by 2040.

The nation certainly seems to be trying to head that way. Under its new 5 year plan it aims to more than double its wind energy capacity (to 250GW), and nearly treble solar capacity (to 160GW), accelerating well ahead of the EU.

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After Hinkley

By Dave Elliott

Battles continue over the economic viability of the proposed £18bn Hinkley nuclear project, with EDF still saying it can go ahead, despite the resignation of two key senior executives, opposition from the French trade unions and even doubts now emerging from the French Government. Energy minister Ségolène Royal said: ‘This project must offer further proof that it is well-founded and offer a guarantee that the investment in this project will not dry up investments that must be made in renewable energies.’  It is interesting then that EDF’s recent R&D Paper ‘Technical and Economic Analysis of the European Electricity System with 60% RES’, by Alain Burtin and Vera Silva, looks at an EU future dominated by renewables, with nuclear only playing a moderate role, 90GW total.

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UK Energy and the EU: integration or isolation

By Dave Elliott

The UK may be island based but, as renewables expand, it will need more grid links to the continent for balancing and trade. It may have a net surplus and so could do very well selling it over supergrid interconnector links to EU countries less well endowed with renewables. The UK’s National Infrastructure Commission (NIC), which seems to be taking a leading role in energy system planning, said in its recent report ‘Smart Power’, that interconnection, along with storage and demand flexibility ‘could save consumers up to £8 billion a year by 2030, help the UK meet its 2050 carbon targets, and secure the UK’s energy supply for generations’.         

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UK Renewable Investment – the right priorities?

by Dave Elliott

The share of renewables in UK electricity supply reached a high of 23.5% in the third quarter of 2015 (Q3), up 5.9% from 2014 Q3, and it seems likely to continue to grow as more projects come on line. However there are some problems. UK investment in renewables reached around £14bn in 2015, but has focused increasingly on the more costly offshore wind option: £8bn was invested in it in 2015. With the government block on support for cheaper on-shore wind and its slowdown of PV solar support, that arguably imbalanced pattern will get worse. It means less capacity per £ invested. Bloomberg forecast that over the next 5 years the UK will in effect lose at least 1 GW of renewable capacity. As offshore wind moves down its cost-reduction curve, the situation may improve, if then the money saved can be spent on other projects, but Bloomberg says ‘without some form of change in policy support, we could see investment drop off a cliff after 2019′. www.independent.co.uk/news/uk/home-news/britains-renewable-energy-industry-is-about-to-fall-off-a-cliff-says-new-research-a6818186.html  (more…)

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UK energy policy – grinding to a halt?

By Dave Elliott

At a meeting of the House of Commons Liaison Committee, which brings together the chairs of select committees, PM David Cameron in effect provided an overview of his take on key aspects of UK energy policy. It was quite revealing, with justifications being offered for the extensive cut-backs in support for most low-carbon projects, in order ‘to deliver low carbon at the lowest cost’. Very little seems to have survived unscathed. (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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Climate action and birds

By Dave Elliott

“There is no habitat that benefits from coal pollution”, says David Roberts, commenting on an article in New Yorker last year by Jonathan Franzen, who was worried that, in the rush to deal with climate change by using renewables, local impacts on birds would get ignored, given the argument that global climate change due to fossil fuel use would hurt them much more than wind farms or whatever: http://grist.org/living/jonathan-franzen-is-confused-about-climate-change-but-then-lots-of-people-are/
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