Offshore Wind Farms
An overview…
UE VISION FOR % energetic efficiency -20 % greenhouse gas emissions 20 % of energy from renewable source
Power Mix UE (Forecast) - Annual UE electricity consumption = 3,280 TWh. - Wind power was about 6% (200 TWh) in Now (end of 2013) it is 8% (257 TWh).
Wind energy in EU Total power installed : 35 GW Wind power installed : 11.2 GW (7 large nuclear power plant) 2013 : 117 GW of wind power
Advantage of offshore wind farm More powerful winds, more predictability, less turbulence. Offshore wind blow 40% more often Lower environmental impact: view and noise
Power installed in 2012 = 1.6 GW (1/7 of annual wind power installed ). Annual production of energy in 2013 = 23 TWh (0.7 % of UE cons.)
Wind atlas (open sea) 1 kW/m 2 10 m/s
Current commercial substructures are economically limited to maximum water depths of 40m to 50m.
Type of substructure (2013) Substructure of offshore wind turbine Monopile1376 Gravity based foundation302 Jacket91 Tripile47 Tripod29 N/A6 Floating4 Total1855
Where are offshore wind farms? CountryMW United Kingdom3309 Denmark1271 Netherlands247 Belgium195 Sweden163 Germany120 Finland32 Ireland25 Norway2.3 Portugal2 Total:5368
London array 1 Studies start : 2001 Commission year : 2013 (April) Estimated cost : € Location : Thames estuary Distance from shore : 20 Km Offshore area : 100 km 2 Operator : DONG ENERGY Turbine manufacturer : Siemens Istaller turbines: MPI Offshore A2SEA Turbine Rated power pr. Turbine : 3.6 MW Rated Wind speed : 12.5 m/s Rotor diameter : 120 m Wind Farm power : 630 MW Number of turbine : 175 Structure type : monopiles
And forecast…
UE challenges for offshore
Avoided costs of fuel from wind power During 2012 Europe spent €545 billion on importing fossil fuels.
% electric UE consumption % electric UE consumption % electric UE consumption Wind offshore power devolopement
Future projects in the short term
France wind farms in the year ahead
Tendencies for offshore wind energy in Spain Spain are financing several R&D project with the objective of developing floating turbine structure for wind power in deep waters (Eolia and Emerge i.e.) Madrid-based Iberdrola Renewables plans to develop six offshore wind farm projects with an aggregate generation capacity of 3,000 MW at locations off the coasts of the Spanish Atlantic provinces of Cádiz and Huelva and the Mediterranean province of Castellón.
Deep water wind turbines is the future Company : Statoil Manufacturer : Siemens Type of floater : Spar – buoy Water depth : 200 m Turbine capacity: 2.3 MW (prototype) 3-7 MW (commercial) Mooring : 3 mooring lines Prototype installed : 2009, West coast of Norway Commercial installation: 2015 – 2016 Origin : Norway Hywind
Company : Principle power, EDP, Repsol Manufacturer : Vestas Type of floater : Semi – Submersible Water depth : 42 – 53 m Turbine capacity: 2 MW (prototype) 5-7 MW (commercial) Mooring : chain and polyester lines Prototype installed : 2011, Portugal Commercial installation: 2017 Origin : Portugal WindFloat
Project for offshore in EU
Reference European Wind Energy Association Lindoe Offshore Renewables Center EurObserv’ER Speech of J.M. Barroso (March 22, 2014) European Offshore Renewable Energy Roadmap GSE statistic report Opportunities in Spain’s wind-power sector (Ministero de Economia y Competitividad )