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Tag Archives: wind power

Renewables hit by economic success

A Christmas success story – of sorts

By Dave Elliott

Renewables are getting cheaper, with the costs for some falling dramatically. However, as overall energy prices fall, due in part to the success of renewables, it is not just old fossil and nuclear plants that suffer, becoming stranded assets. Older less efficient renewable projects can also face problems, as has happened, it seems, with some older wind turbines. They need replacing with new better designs – reblading and repowering. But, as energy prices continue to fall, upgrades like this may not yield enough extra income to be worthwhile. This will be a continuing issue as renewables expand and get cheaper: the market value of wind and PV power drops with increasing market penetration and success.

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Japan – pressure for more renewables mounts

by Dave Elliott

Japan’s use of both fossil fuels and renewables has increased since the 2011 Fukushima nuclear disaster but, with energy costs being high, improved energy efficiency and massive energy saving drives have pushed national power consumption in 2015 down 12% below the 2010 level. There have been attempts to get approval to restart some the 43 surviving reactors, but so far only 3 have restarted fully – 2 more did, but then closed following court orders. With renewables, including hydro, supplying 14.3% of power in Japan in the year to March 2016, they are producing much more output than nuclear – 139TWh versus 4.3TWh in 2015. Rapid expansion is planned, but even more is being called for.  Meanwhile, the slow and expensive process of cleaning up Fukushima rumbles on, with worries still emerging about leaks and contamination.

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German energy balancing

By Dave Elliott

Germany is in the lead globally with its ambitious renewable energy programme, already supplying over 32% of its electricity and aiming for 80% by 2050.  At present, Germany’s 1.5 million photovoltaic solar installations have a generation capacity of over 40GW, four times the remaining 10.8 GW base-load nuclear fleet that is being decommissioned in stages between the end of 2017 and 2022. PV can be well matched to day-time peak demand in Germany, which is why it has challenged gas peaking plant in this market.  However, due to its low load factor (10-15%, compared to 70-80% or more for nuclear), solar PV generation only delivers around 940 equivalent full-load hours of electricity per year, so in 2015 its high capacity only met around 7.5% of German electricity demand, compared to 14% for nuclear generation. That’s why some think it is not the best option to expand for the future – it’s expensive for relatively low levels of actual output. (more…)

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EU Renewables round up

By Dave Elliott

Renewables are roaring ahead in Europe, with wind at over 140GW and PV surpassing 100GW. There have been some spectacular successes, with renewables briefly supplying 87% of German electricity at one point, and Portugal achieving similarly high contributions-something that’s a regular occurrence in Denmark. But progress may soon be slowed as  economic pressures mount and political reaction sets in with support schemes being withdrawn or constrained. For example, in Germany it’s all change as the government revises the Energiewende energy law with a slow down for wind and solar expansion, via annual capacity caps and reduced support levels. Portugal has also started to phase out its support for renewables, although not quite so aggressively as happened in Spain, or, for that matter, the UK. (more…)

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Labour’s 65% renewables by 2030 plan

By Dave Elliott

Labour’s new Environment and Energy policy aims to get 65% of UK electricity from renewables by 2030 and pioneer a ‘democratic, community-led system of energy supply’. That is well ahead of what might happen under current plans, and includes 47GW of offshore wind, 21GW of onshore wind (up from around 5GW and 10GW at present, respectively) and 25GW of PV solar (up from 12GW now), but is presented as being possible since it would involve new forms of decentralised project development, alongside more conventional ‘top down’ corporate projects, suitably accelerated.

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New RSPB 2050 energy scenarios

By Dave Elliott

The Royal Society for the Protection of Birds has produced a study of ecologically sound energy resources for the UK, looking at the spatial aspects and local impacts. In total, the spatial analysis indicates that between 5,558 and 6,277 TWh/year could be generated with low ecological risk by renewable energy technologies in the UK. The UK’s annual energy consumption in 2014 was 1661 TWh, so that, if appropriately sited, approximately four times this level could be generated from renewables with low impact risk.

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Renewables continue to boom globally

By Dave Elliott

BP says renewables have shown ‘a quicker pace of penetration than any other fuel source in modern history’, and their strong growth meant that they ‘accounted for all of the increase in global power generation in 2015’. BP’s latest review of world energy trends carbon notes that wind power capacity grew by 17.4% and solar by 32.6% last year, with China overtaking Germany and the US as the largest solar generator: www.bp.com/en/global/corporate/energy-economics/statistical-review-of-world-energy.html  REN21 has come up with equally high figures. And looking to the future, both see renewables booming, as does Bloomberg.

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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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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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Go slow on renewables

By Dave Elliott

‘Moving too quickly to zero carbon energy risks driving the bills of hardworking people too high’. That, from Energy Secretary Amber Rudd, in a DECC Blog on August 11th , seems to be the view underlying the government’s renewable energy support cutbacks. In her speech to the Conservative Party Conference in October she said that ‘as we have already shown, we will be tough on subsidies’, but insisted that the policy was fair since it simply was aimed at ‘getting the balance right between supporting new, low carbon generation and protecting bill payers’: http://www.businessgreen.com/bg/news/2429010/rudd-hails-potential-for-uk-to-become-home-for-energy-innovation

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