France to build 2 GW of offshore wind power as costs of nuclear exposed
Long reliant on nuclear as its chief source of energy, France is having to think long and hard about its energy strategy in the face of increasing public questioning about the safety of nuclear after the Fukushima disaster and greater evidence about the potential future high financial costs of the technology. The decision by the French government late last week to award tenders to build offshore wind farms to produce 2 GW of energy suggests that wind power is high up the Elysée’s list of alternatives to nuclear.
French energy minister Eric Besson said the decision would create up to 10,000 new jobs and “position France among the leaders of the offshore industry,” when making the announcement that a consortium led by energy giant EDF and engineering firm Alstom had won a bid to build three wind farms off the coast of northern France. Spanish energy firm Iberdrola and French engineering giant Areva secured the rights to build a fourth farm, he said. The two consortia are expected to invest around €7 billion to install 2GW of offshore wind energy capacity, according to Besson.
The French government had originally announced plans for 3 GW of new offshore wind capacity and Besson said a second tender round would be launched later in the year. This round is also likely to include a fifth site, which was not awarded during the first tender round despite an application from engineering firms Siemens and GDF Suez. According to tender criteria, projects were to be chosen on a range of criteria, weighted 40% towards price, 40% on the benefits to industry and 20% on the impact on the environment. There was insufficient competition in bids for the fifth site, according to the energy ministry.
Henri Proglio, CEO of EDF, said his company’s success “represents the beginning of a new industrial adventure in renewable energy for France,” while Patrick Kron, CEO of Alstom, said the project “will now set in motion a fully-fledged and lasting industrial sector in France that will finally serve export markets too”.
The three sites will include a total of approximately 240 turbines and orders will run on a site-by-site basis starting in 2014, following completion of feasibility and impact studies for each project, said Alstom.
The French Court of Auditors recently published a report revealing that the cost of producing nuclear energy will surge in France as old plants need updating and new safety standards make new plants much more expensive to construct: Fessenheim, a nuclear plant in the Alsace region built in 1977 cost €1.07 million per MW of capacity whereas the EPR (European Pressurised Reactor) nuclear plant in Flamanville will cost €3.7 million per MW. The cost of producing electricity made in EPR plants like Flamanville will also be significantly more expensive, says the report.
Meanwhile, the French public’s deepening lack of trust of nuclear power was discussed in a programme on the television channel France 5 on Tuesday evening. The programme “Nuclear, the Human Bomb” examined the impact of Fukushima on the nuclear debate in France and asked what the French state is doing to ensure the safety of its nuclear reactors.






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[...] France has decided to build 2 gigawatts worth of wind turbines offshore, as its nuclear plants age and updating them or replacing them becomes expensive and [...]
[...] government of France is thinking post-nuclear energy and developing off-shore wind farms in the North [...]
[...] (typeof(addthis_share) == "undefined"){ addthis_share = [];}5. France has decided to build 2 gigawatts worth of wind turbines offshore, as its nuclear plants age and updating them or replacing them becomes expensive and [...]
It is heartening to note that France is going in a big way to set up offshore wind farms as power in France is dominated by Nuclear.
Offshore wind power refers to the construction of wind farms in bodies of water to generate electricity from wind. Better wind speeds are available offshore compared to on land, so offshore wind power’s contribution in terms of electricity supplied is higher.
In the power equation Wind speed is having cubic relation and as such any rise in wind speed will contribute much to the economics of wind energy. It is common sense that winds on the sea are higher than on land because the roughness factor of the water and ise are zero.
Large modern turbines typically capture up of about 50% of the wind power presented to them.
Betz’s law is a theory about the maximum possible energy to be derived from a wind turbine developed in 1919 by the German physicist Albert Betz. According to Betz’s law, no turbine can capture more than 59.3 percent of the kinetic energy in wind. The ideal or maximum theoretical efficiency n max (also called power coefficient) of a wind turbine is the ratio of maximum power obtained from the wind to the total power available in the wind. The factor 0.593 is known as Betz’s coefficient. It is the maximum fraction of the power in a wind stream that can be extracted.
Economics and benefits:
Offshore wind power can help to reduce energy imports, reduce air pollution and greenhouse gases (by displacing fossil-fuel power generation), meet renewable electricity standards, and create jobs and local business opportunities.
COST COMPARISON OF ONSHORE AND OFFSHORE WIND FARMS
Onshore
Investment of about $1.5 million per MW
Levelized cost of 6-7 cents per kWh
O&M – 1-3% of capital costs
May be built in smaller units
Offshore
Investment of $2.3 million per MW
Levelized cost of about 10-11 cents per kWh
Higher O&M – 40$ per kW and 0.7 cents per kWh variable
Large turbines and farms required
In spite of the higher costs and the uncertainties involved in offshore wind, research in this sector has been significant, and the main reason is the potential offered by offshore wind turbines, especially in lands close to water
At the end of 2011, there were 53 European offshore wind farms in waters off Belgium, Denmark, Finland, Germany, Ireland, the Netherlands, Norway, Sweden and the United Kingdom, with an operating capacity of 3,813 MW,[ while 5,603 MW is under construction
USA, China, South Korea, Taiwan, France and Japan have ambitious plans to go in for offshore wind farms on a massive scale.
Prospects for Offshore Wind Farms in India:
Length of coastline of India including the coastlines of Andaman and Nicobar Islands in the Bay of Bengal and Lakshwadweep Islands in the Arabian Sea is 7517 km. Length of Coastline of Indian mainland is 6100 km.
Thorough Wind studies have to be carried out along the coast to identify the prospective offshore wind farm sites. Based on these studies a Pilot project can be started by MNRE which will help as a Demonstration project .
Dr.A.Jagadeesh Nellore(AP),India
Wind Energy Expert
E-mail: anumakonda.jagadeesh@gmail.com