Enertrag to invest €19 million in world's first hybrid biomass-wind-hydrogen power station
One of the world's largest wind power companies, Germany's Enertrag AG, announces [*German] it will invest €19 ($27) million in the first hybrid power station based on biomass and wind power, the excess electricity of which will be used for the production of hydrogen. The hydrogen fuel provides back-up to the system and helps meet peak demand; excess hydrogen will also be used by third parties as a clean fuel. The complex will thus be capable of supplying both heat, power, and fuel entirely from renewable sources.
Wind power has a large energy potential but its main problem is the fact that it can not supply base load and peak power. Wind power is highly intermittent with electricity output varying from hour to hour and from day to day. Storage technologies are either inefficient or costly. In practise this means that, in Germany (world leader in wind energy), the base load is provided by ordinary fossil fuel plants. Some have used this argument against 'intermittent' wind power, saying the technology actually perpetuates coal based power generation and can not be called 'clean' because its expansion has effectively meant the expansion of fossil fuel use.
However, proponents of wind energy have called this the 'base load fallacy': there are relatively simple techniques to replace coal with other primary energy sources that can guarantee the baseload (earlier post). One of the most obvious solutions is to utilize renewable biomass instead. Biomass is stored solar energy. It can be physically transported, traded, stored and used whenever power or heat is required. The resource can easily cover both base and peak loads. Coupling renewables to each other in principle makes for robust energy systems. This is exactly what Energtrag will be demonstrating.
Near Prenzlau, capital city of the district of Uckermark in the state of Brandenburg, Energtrag will build a high-tech power complex that will supply both heat, power and hydrogen fuel in a variable way. The plant, which will integrate an existing wind farm and biomass plant, will have a combined capacity of 120 MW. The 500 kilowatt hydrogen production unit will be powered by excess electricity from the hybrid plant. Industrial-scale hydrogen production will commence in early 2008.
According to a study [*.pdf] on hybrid power generation by Enertrag, wind power produces 75% of its electricity in a time-frame that covers only 25% of total operational time. This means electricity generated from wind power is highly variable at several different timescales: from hour to hour, daily, and seasonally (map, click to enlarge, shows current output of Enertrag wind farms near Prenzlau - data change continuously). But it also means that - with biomass providing a robust base load - a lot of excess power becomes available that can be utilized for the production of storable hydrogen.
The integration of the hybrid renewable energy complex and the supply of different services - heat, electricity, back-up power, and hydrogen fuel - is based on an innovative data- and control management system. The supply of each product can thus be optimised according to the plant's own needs and depending on external demand. This allows for a highly efficient system:
energy :: sustainability :: biofuels :: bioenergy :: renewables :: wind :: biomass :: hyrdogen :: hybrid ::
The hybrid power plant's outline was presented at the 4th Prenzlauer Energiemesse, where, from October 19 to 20, more than forty of Germany's most innovative energy companies present their projects which they think will 'power the future'.
The project is being developed in partnership with experts from the University of Stralsund, the Technical University of Braunschweig and the international hydrogen community.
Enertrag already operates an experimental hybrid power plant based on solar and wind power located on the North Sea island of Pellworm. But there the efficiency of the solar plant is limited. The new biomass-wind station coupled to hydrogen production will be the first medium scale, fully operational hybrid plant.
Enertrag is a power company focused on the production of electricity and heat generated entirely from renewable sources, without dependence on fossil fuels. It is one of the world's largest wind power companies, with over 380 wind parks concentrated in Europe producing over a billion kilowatthours of electricity per year. Its portfolio supplies energy that can cover the needs of around one million people. Enertrag employs 230 people. The company's revenues grow at a yearly rate of around 20 percent.
Map courtesy of Enertrag AG.
References:
Enertrag AG: Startschuss für das ENERTRAG-Hybrid-Kraftwerk - October 19, 2007.
Enertrag: Energieversorgung der Zukunft – ganz einfach? [*.pdf] - Dauerthal, - February 20, 2005.
Rundfunk Berlin-Brandenburg: Hybridkraftwerk in der Uckermark - October 19, 2007.
Welt Online: Kraftwerk bei Prenzlau soll Strom aus Wind und Biomasse erzeugen - October 16, 2007.
Biopact: Energy major Total will not invest in wind power - the base-load fallacy - October 15, 2007
Wind power has a large energy potential but its main problem is the fact that it can not supply base load and peak power. Wind power is highly intermittent with electricity output varying from hour to hour and from day to day. Storage technologies are either inefficient or costly. In practise this means that, in Germany (world leader in wind energy), the base load is provided by ordinary fossil fuel plants. Some have used this argument against 'intermittent' wind power, saying the technology actually perpetuates coal based power generation and can not be called 'clean' because its expansion has effectively meant the expansion of fossil fuel use.
However, proponents of wind energy have called this the 'base load fallacy': there are relatively simple techniques to replace coal with other primary energy sources that can guarantee the baseload (earlier post). One of the most obvious solutions is to utilize renewable biomass instead. Biomass is stored solar energy. It can be physically transported, traded, stored and used whenever power or heat is required. The resource can easily cover both base and peak loads. Coupling renewables to each other in principle makes for robust energy systems. This is exactly what Energtrag will be demonstrating.
Near Prenzlau, capital city of the district of Uckermark in the state of Brandenburg, Energtrag will build a high-tech power complex that will supply both heat, power and hydrogen fuel in a variable way. The plant, which will integrate an existing wind farm and biomass plant, will have a combined capacity of 120 MW. The 500 kilowatt hydrogen production unit will be powered by excess electricity from the hybrid plant. Industrial-scale hydrogen production will commence in early 2008.
According to a study [*.pdf] on hybrid power generation by Enertrag, wind power produces 75% of its electricity in a time-frame that covers only 25% of total operational time. This means electricity generated from wind power is highly variable at several different timescales: from hour to hour, daily, and seasonally (map, click to enlarge, shows current output of Enertrag wind farms near Prenzlau - data change continuously). But it also means that - with biomass providing a robust base load - a lot of excess power becomes available that can be utilized for the production of storable hydrogen.
The integration of the hybrid renewable energy complex and the supply of different services - heat, electricity, back-up power, and hydrogen fuel - is based on an innovative data- and control management system. The supply of each product can thus be optimised according to the plant's own needs and depending on external demand. This allows for a highly efficient system:
energy :: sustainability :: biofuels :: bioenergy :: renewables :: wind :: biomass :: hyrdogen :: hybrid ::
The hybrid power plant's outline was presented at the 4th Prenzlauer Energiemesse, where, from October 19 to 20, more than forty of Germany's most innovative energy companies present their projects which they think will 'power the future'.
The project is being developed in partnership with experts from the University of Stralsund, the Technical University of Braunschweig and the international hydrogen community.
Enertrag already operates an experimental hybrid power plant based on solar and wind power located on the North Sea island of Pellworm. But there the efficiency of the solar plant is limited. The new biomass-wind station coupled to hydrogen production will be the first medium scale, fully operational hybrid plant.
Enertrag is a power company focused on the production of electricity and heat generated entirely from renewable sources, without dependence on fossil fuels. It is one of the world's largest wind power companies, with over 380 wind parks concentrated in Europe producing over a billion kilowatthours of electricity per year. Its portfolio supplies energy that can cover the needs of around one million people. Enertrag employs 230 people. The company's revenues grow at a yearly rate of around 20 percent.
Map courtesy of Enertrag AG.
References:
Enertrag AG: Startschuss für das ENERTRAG-Hybrid-Kraftwerk - October 19, 2007.
Enertrag: Energieversorgung der Zukunft – ganz einfach? [*.pdf] - Dauerthal, - February 20, 2005.
Rundfunk Berlin-Brandenburg: Hybridkraftwerk in der Uckermark - October 19, 2007.
Welt Online: Kraftwerk bei Prenzlau soll Strom aus Wind und Biomasse erzeugen - October 16, 2007.
Biopact: Energy major Total will not invest in wind power - the base-load fallacy - October 15, 2007
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