Large-scale demonstration of innovative transmission system integration and operation solutions for (inter)connecting renewable electricity production. Transmission grid topic in Call FP7-ENERGY-2013-2 Date of publication : 10 July 2012 Deadline for proposals submission : 24 January 2013 ACTIVITY ENERGY.7: SMART ENERGY NETWORKS Indicative budget: EUR 45 million Topic ENERGY.2013.7.2.3: Large-scale demonstration of innovative transmission system integration […]Read More
http://www.carboncommentary.com/2009/11/15/853 Spain’s variable wind and stable electricity networks Sunday 15 November 2009 in uncategorized by Chris Goodall One of the frequent criticisms of wind energy is that national distribution systems (‘the grid’) cannot cope with large number of turbines because of the variability and unpredictability of their output. Grids need to match supply and demand […]Read More
CompanyNameDesignationCountry Climate ParliamentNicholas DunlopFounder and Secretary-GeneralUnited Kingdom Siemens Transmission and DistributionMatthew KnightBusiness Development ManagerUnited Kingdom Friends of the SupergridAna AguadoCEOBelgium Commission for Energy RegulationPaul BrandonManager – Electricity TransmissionIreland The University of GlasgowEnrique AchaProfessor of Electrical Power systems, Department of Electronics and Electrical EngineeringScotland ABBLars WeimersChief Engineer Marketing HVDC SystemsSweden DESERTECGerry WolffCoordinatorUnited Kingdom Institute […]Read More
4th Oct 2010 – BBC web site Energy bills set to rise to pay for £32bn investment The rise in renewable energy such as windfarms mean a radical rewiring of the National Grid is needed Gas and electricity bills will both have to rise by £3 a year, as £32bn is needed to improve the […]Read More
Dear all, I would like to introduce you to the analysis Dave mentions below and point everyone to the material at www.roadmap2050.eu . Just today more of the underlying material has been added to the site for download. The analysis examined plausible 80%-by-2050 decarbonisation pathways for Europe and then conducted a deep dive […]Read More
Prospects for Trans-Atlantic Undersea Power Transmission firstname.lastname@example.org Submarine Power Cable Precedents: For several decades, submarine power cables have carried electric power across short distances under bodies of water within the same nation. Some examples include the cable from mainland Italy to the offshore Mediterranean islands of Corsica and Sardinia. Similar cables were installed in Sweden, […]Read More
The declaration: 1. The Ministers of the North Seas Countries: Belgium, Denmark, France, Germany, Ireland, Luxembourg, the Netherlands, Sweden and the United Kingdom Considering, 2. The crucial role which offshore wind energy is bound to play in order for Europe to meet the EU’s 20-20-20 targets. The major part of offshore wind energy development in […]Read More
Plans to link Europe to what would be the world’s biggest hydroelectric dam project in the volatile Democratic Republic of Congo have sparked fierce controversy.
The Grand Inga dam, which has received initial support from the World Bqank would cost $80bn (£48bn). At 40,000MW, it has more than twice the generation capacity of the giant Three Gorges dam in China and would be equivalent to the entire generation capacity of South Africa.
Grand Inga will involve transmission cables linking South Africa and countries in west Africa including Nigeria. A cable would also run through the Sahara to Egypt.Read More
” The Grand Inga dam can provide 2/3 of African power needs and some of Europe’s”
While integration – meaning electrical inter – connections of neighbours – on the
one hand may enable cheap electricity, on the other, it can cause dependence.
Therefore, to avoid a single source dependency, it might be seen as a better
solution, to use less favourable resources inside a given country, and accept higher
costs and other disadvantages. Another way out of this dilemma is diversification of
interconnections. Therefore regional integration may be more attractive when the
number of participating countries rises.
In some cases, regional integration is the only reasonable way of using known
resources which are too big for a national approach.
An extreme example is the hydropower potential near Inga, by the Congo River, in
the Democratic Republic of Congo. The African Power Pools have been formed in
order to erect large scale regional integration projects – leading in a structure one
may call an African Supergrid – to be able to handle the tremendous amount of
electricity which could be produced here at very low prices, and which would be
enough to deliver two thirds of the current African consumption. But the huge
capacity makes it difficult to bring the different objectives together.Read More
A 5 MW turbine rotor diameter is 126m ( from the Repower website http://www.repower.de/index.php?id=12&L=1 )
According to Martin Alder, a wind farm owner and developer:
Across wind turbine spacing = 3 x dia (Assume tower to tower)
Down wind turbine spacing = 5 x dia
According to Colin Palmer, of Wind Prospect, a leading wind farm developer, load factors of 30 – 35% onshore, and 40% offshore are readilly achievalbe.
So assume 33%.
Take a 70 mile by 70 mile square. This equals 112 km by 112 km
So downwind, turbine spacing (tower to tower) will be 126 x 3 = 378m. Thus in 70 miles / 112 km we can accommodate (112 x 1000 / 378 ) +1 = 297.3 towers (allowing half blade length to protrude out of area at edges).
Similarly, cross wind, we need 5 x 126 = 630 m. Thus in 70 miles / 112 km we can accommodate (112 x 1000 /630) +1 = 178.8 towers (again allowing half blade length to protrude out of area at edges).
Thus a 70 mile by 70 mile square can accommodate 297.3 x 178.8 = 53,157 turbines..
At 5 MW each, these will generate at peak 265.7 GW.
Assuming reasonable sites and a 1/3 , 33% load factor, this will generate on average 79.73 GW.Read More