Showing posts with label geothermal energy. Show all posts
Showing posts with label geothermal energy. Show all posts

Friday, June 08, 2012

Deal with Norway guarantees future UK gas and oil dependency

Øyvind Eriksen, executive chairman of Aker
Solutions, Norwegian Prime Minister Jens Stoltenberg and David Cameron
discussing the deal in a side street in Oslo, Norway.
Øyvind Eriksen, executive chairman of Aker Solutions, Norwegian Prime Minister Jens Stoltenberg and David Cameron discussing the deal in a side street in Oslo, Norway.

The Norwegian and British Prime Ministers yesterday agreed several landmark energy partnerships between the two countries designed to secure long-term energy supplies.

The deals will further increase UK dependence on gas and oil for decades to come, including committing it to tapping reserves in the Arctic that are opposed by environmentalists. They will also support the development of offshore wind and, it is hoped, carbon capture and storage. Finally, they continue to support a grid interconnector between the two countries, allowing the UK to import geothermal power.

The deals were sealed at a breakfast meeting in Oslo with Prime Ministers David Cameron and Jens Stoltenberg that was attended by ten leading energy companies from both countries: Fred Olsen, Gassco, Aker Solutions, National Grid, NorthConnect, Shell, Statoil, Statnett, Statkraft and Centrica.

Billions of pounds of new investment are expected to result, with the potential to create thousands of new jobs. The agreements include the creation of:
  • 300 jobs from Statoil's £12 billion investment over the lifetime of oilfields in the UK's Mariner-Bressay North Sea
  • 1300 jobs in the oil services industry created by Norwegian firm Aker Solutions in Chiswick
  • continued cooperation on gas supply and exploration between Centrica and Statoil, sealed in a new Memorandum of Understanding
  • a promise to develop the 9GW Dogger Bank offshore wind farm off the East coast of Yorkshire by the Forewind Consortium
  • a deal to provide more Norwegian gas to Shell from Gassco
  • continued progress on installing two subsea electricity interconnectors to provide geothermal electricity between the UK and Norway.
Prime Minister David Cameron said of the Norway-UK Energy Partnership for Sustainable Growth: "The jobs and investments announced today highlight how vital the strong relationship between Norway and the United Kingdom is for our energy security and economic growth. We look forward to strengthening our partnership further, driving investment into a diverse, sustainable energy mix that delivers affordable long term supplies for consumers."

Norway is already an important supplier of oil and gas to the UK, providing over a quarter of the UK's primary energy demands: 42% of imported gas and 62% of imported oil in 2011. Charles Hendry, Energy Minister, added that: “The investments and jobs announced today by British and Norwegian companies are a clear signal of the benefits of this partnership.”

The agreement says that oil exploration on the Norwegian and the UK continental shelves “will continue to provide substantial energy supplies for the coming decades". Included in this is the ability to use new technology to improve recovery from mature fields and from the Arctic.

Carbon capture and storage

The statement continues: "The UK is currently developing a gas generation strategy, setting out the role for gas-fired power in delivering a secure and affordable route to a low-carbon economy. CCS will enable gas to provide substantial electricity consistent with our climate change agenda."

Norway is leading the world in this technology; it has been burying carbon dioxide there since 1996. Last month, Norway's Prime Minister, Jens Stoltenberg, opened the next stage of the world's largest prototype carbon capture and storage plant at an oil refinery and gas power plant at Mongstad, that is financed by the Norwegian government to the tune of $1bn.

The United Kingdom, however, like the rest of Europe, is lagging behind Norway and other countries such as America, Canada and Australia, all famous for the size of their carbon footprints in implementing CCS. The main reason is the low price fetched for a tonne of carbon released into the atmosphere under the European Emissions Trading Scheme, roughly one tenth of the cost of burying it back in the ground.

David Cameron hopes that we can learn a thing or two about CCS from the Norwegians to improve the prospects of the fledgling CCS projects here in the UK.

However, with the proposed emission limits of 450gCO2/kWh for Emissions Performance Certificates for new gas-fired power stations in the new Energy White Paper, it is hard to see that there will be any regulatory incentive to capture carbon from these power stations.

Arctic oil and gas


Because of the agreement, Britain will have no shortage of oil and gas in the years to come. Norway is ranked 13th amongst nations with gas reserves. Major new discoveries of oil and gas have been made recently in the Norwegian Continental Shelf, in the Skrugard and Havis fields in the Barents Sea, and the Johan Sverdrup in the North Sea. Aker Solutions has recently been awarded contracts by Statoil for exploring these. The Barents in particular is a harsh, Arctic environment.

But exploration in the Arctic faces severe opposition from environmentalists. Greenpeace calls it “a catastrophe waiting to happen" and is mounting a big campaign, fronted by Jarvis Cocker, who recently visited the Arctic Circle and was reportedly moved to tears at the region's majestic landscape.

David Cameron did not have time to do any sightseeing. In the joint statement is the claim that coming Electricity Market Reform will create a "framework for investment in the UK" worth "over £200bn in energy project opportunities. Similarly," it continues, “Norwegian policies are creating new commercial opportunities for companies, particularly in the High North," a reference to the Barents Sea discoveries. "The Norwegian-Swedish Green Certificate Scheme also offers incentives for British investors in renewable energy," it adds.

This scheme was launched on 1 January 2012 and is a market-based system to support the expansion of electricity production from renewable energy sources and peat. Since then 12,573 green certificates have been issued in Norway in relation to 26 plants.

In Norway, Statoil, which is 67% owned by the Norwegian government, is facing stiff opposition from the public, church leaders and 28 Norwegian organisations including WWF Norway and Greenpeace Norway, for having chosen to get involved with tar sands.

Wind farms


As for the renewable energy projects, the largest of these is the Dogger Bank one, which comprises up to four offshore wind farm projects, 156km off the coast of Teesside, which could provide over 10% of the UK's energy needs

The windfarms will be connected by onshore high voltage direct current (HVDC) underground cabling and up to four direct current (DC) to alternating current (AC) converter stations. A local consultation is currently underway.

The Forewind consortium managing the project is comprised of the Norwegian companies Statkraft and Statoil, German company RWE npower renewables, and Scottish company SSE.

Finally, the Norwegian-UK agreement says that "The UK and Norway will work together to build on outcomes of the Rio+20 Conference, including further development of the Energy+ Initiative to increase clean energy access for developing countries."

The next step is a conference to discuss the achievements and future priorities of the UK-Norway energy partnership, to be held at London’s Royal Geographical Society in September.

Thursday, May 31, 2012

UK-Iceland agreement and new report could herald a geothermal energy revolution

The map shows the locations of geological hotspots that could be tapped for energy throughout the UK. The Eden Project's Tim Smit is behind the idea.


As Britain signs an agreement with Iceland to cooperate on geothermal power and offshore drilling, a new report says hot rocks could power one fifth of UK homes.

The bilateral agreement follows talks last month between Energy Minister Charles Hendry and Icelandic power sector leaders. The MoU, which Mr. Hendry signed with his Icelandic counterpart Oddný G. Harðardóttir yesterday, will strengthen the two countries’ relationship on energy issues such as interconnectors and the development of their oil and gas industries, including offshore drilling.

Charles Hendry said: “Today’s agreement will help pave the way for a closer relationship with Iceland, which I hope can yield significant benefits for the UK, including the development of geothermal power, greater use of interconnectors to transport energy under the sea, and developing oil and gas resources."

The two countries have pledged to exchange information on the development of the deep geothermal sector in the UK, including the supply of heat to district heating networks.

They will also explore the possibility of developing electricity interconnection between Iceland and the UK, and their respective Ministries for International Development will collaborate on developing renewable energy projects in developing countries with a special focus on East Africa.

Geothermal could power one fifth of homes


The new report on the UK potential for geothermal energy, by Sinclair Knight Merz and commissioned by the Renewable Energy Association, concludes that it should be possible for geothermal energy to provide the UK with a cumulative benefit of 5,000 gigawatt-hours (GWh) of electricity and 32,000 GWh of heat by 2030. This is power equivalent to nine nuclear reactors.

Deep geothermal systems generate electricity from water heated by rock deep underground to create steam that drives conventional turbines.

The report’s author, Mr Tim Jackson, a Senior Geothermal Engineer at SKM explained that “SKM has used internationally recognised methods to assess the most promising resources and concluded that there is potential for 9,500MW of electrical power and 100,000MW of heat for projects with a 25 year lifetime.”

Mr Jackson continued, “SKM’s analysis suggests that a feed-in tariff level of approximately £300/MWh for electrical generation and combined heat and power projects is required to develop these geothermal projects in the UK. This is approximately equal to five Renewable Obligation Certificates (ROCs) per MWh.”

“For heat-only projects a Renewable Heat Incentive of £30 to £70/MWh is needed.”

“The UK already has world-leading drilling skills and these could be applied to support geothermal projects and develop new techniques to make Engineered Geothermal System power plants more commercially attractive,” he added. “With the right skills and supporting mechanisms in place, the resulting energy production could make a significant contribution towards achieving the UK’s sustainable energy needs as well as enhancing the UK’s capabilities in sustainable energy.”

A geothermal project in Newcastle led by Paul Younger has been drilling for several months and is about to reach a point at which it can tap into hot rocks at 200°C, which will be used for a district heat main.

Key findings of the report include:


  • The resource is widely spread around the UK with ‘hotspots’ in Cornwall, Weardale, Lake District, East Yorkshire, Lincolnshire, Cheshire, Worcester, Dorset, Hampshire, Northern Ireland and Scotland

  • Cost reduction potential is exceptionally high

  • Deep geothermal resources could provide 9.5GW of baseload renewable electricity – equivalent to nearly nine nuclear power stations – which could generate 20% of the UK’s current annual electricity consumption

  • Deep geothermal resources could provide over 100GW of heat, which could supply sufficient heat to meet the space heating demand in the UK

  • Despite this significant potential, the UK support regime is uncompetitive with other European countries.


The geothermal industry is waiting for the results of the Renewable Obligation Binding Review, and lobbying for support to be higher than two ROCs, which it says will be too low to support domestic investment. This is because it is a new technology in its development phase, like the marine energy industry.

Dr Ryan Law, Chair of the REA Deep Geothermal Group said: “We don’t want to be left out of a global industry which is estimated to be worth £30 billion by 2020. We could be at the forefront of this industry given the strength of British engineering skills.” The industry has synergies with the oil, coal and gas industry on account of its need for expertise in geology and drilling.

Tim Smit, the man behind the Eden Project, is planning to build a geothermal heat and power station at the Eden Project, and says in a foreword to the report: “it is the platform for the birth of a new industry; for a small investment today we could be creating something that our grandchildren will thank us for.”

The report recommends that projects could be developed close to areas of large heat demand, such as hospitals or municipal buildings.

Support for geothermal power would cost an estimated £11 million a year, which is the equivalent of adding less than 50p to the average household electricity bill.

Where are the resources?


Suitable geology is not found throughout the UK, but only in particular places. The resources and their locations identified for the report are illustrated in the map above and have been summarised by Cluff Geothermal as:

Cornwall and the South West

HEAT: 13,000 MWth - 6.5 million homes annual heat demand

POWER: 4,000 MWe (equivalent to 3.3 nuclear power plants)

The North East

HEAT: 9,000 MWth - 4.5 million homes annual heat demand

POWER: 4,000 MWe (equivalent to 3.3 nuclear power plants)

The Lake District

HEAT: 8,000 MWth - 4 million homes

POWER: 2,300 MWe (equivalent to 1.9 nuclear power plants)

Wessex Basin

HEAT: 33,000 MWth - 16.5 million homes

Cheshire Basin

HEAT: 14,000 MWth - 7 million homes

East of England

HEAT: 12,000 MWth - 6 million homes

Worcester Basin

HEAT: 6,700 MWth - 3.35 million homes

Larne Basin

HEAT: 1,000 MWth - 500,000 homes.

Story: David Thorpe, News Editor