Hybrid power plant
A hybrid power plant , also referred to as a hybrid system, is a form of power plant which is designed to generate electrical energy, fuel and / or heat from various primary energy sources. In general, several energy generation systems with storage facilities and energy consumers such as heating networks, filling stations or gas networks as well as the supply network are connected and controlled in an optimized manner. Hybrid power plants can also be created as a combination of solar energy with a fossil energy source to generate electricity. The term is also used for power plants that couple two power generators to increase their efficiency.
In hybrid power plants based on renewable energies, the energy generation plants involved, such as wind power plants , biogas plants or solar plants, are strictly speaking not power plants , but energy generation plants which only have all the essential power plant properties when combined in a hybrid power plant. The fuels come in the form of hydrogen or methane (natural gas), also called RE gas in this context .
Hybrid power plants can be a bridge between the discontinuous renewable energy sources such as wind energy and photovoltaics, which occur with approx. 3000 or 1000 full load hours , and the electrical energy demand in the order of magnitude of over 5000 full load hours. Due to the fluctuating energy supply, wind and solar energy cannot be used beyond a certain expansion stage without storage.
In a hybrid power plant based on renewable energies, wind power or solar power is converted into RE gas. This gas is available directly as fuel or for heat generation and can be transported to the consumer by tanker or gas pipeline. The reconversion of renewable gas into electricity in the hybrid power plant is feasible, but only makes sense in exceptional cases due to the physical limitations and the resulting low efficiency , for example if the resulting heat loss can be used directly on site.
A model system of a hybrid power plant was installed on the Norwegian island of Utsira from 2004 to 2007 . The system consists of wind turbines and a storage system consisting of an electrolyser, pressure accumulator, fuel cell and hydrogen turbine which has supplied 10 households with electrical energy. The first German hybrid power plant that combines wind, hydrogen and biogas is the Prenzlau power plant . Another hybrid system that has implemented parts of a hybrid power plant is the Pellworm hybrid power plant .
The NIP wind farm Werder / Kessin project, which consists only of wind power and electrolysis, is a hybrid system that could be expanded into a hybrid power plant.
Realized power plants
Some of the hybrid power plants that have been implemented are summarized below:
| place | country | Power in MW |
|---|---|---|
| RES2H2 |
 Greece
|
0.50 |
| Unst |
 Scotland
|
0.03 |
| Utsira |
 Norway
|
0.60 |
| Prenzlau power plant |
 Germany
|
6.00 |
| Werder / Kessin wind farm |
Germany
|
140 |
Individual evidence
- ↑ This is how a hydrogen hybrid power plant works . ( Memento from June 13, 2011 in the Internet Archive ) Bayerischer Rundfunk online
- ↑ ISCCS - Hybrid Power Plants . Flagsol. Algeria builds first gas-solar hybrid power plant . telepolis
- ↑ Interconnection of the high temperature fuel cell with the gas turbine . ( Memento of the original from September 11, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. DLR
- ^ The Utsira wind-hydrogen project . (PDF; 811 kB)
- ↑ Utsira Wind Power and Hydrogen Plant (PDF; 562 kB)
- ↑ Demonstration and innovation project RH 2 - Werder / Kessin / Altentreptow . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ RES2H2 - Integration of Renewable Energy Sources with the Hydrogen Vector . ( Memento of the original from October 6, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Renew ND, October 30, 2007
- ^ Promoting Unst Renewable Energy (PURE) Project Update . ( Memento of the original from January 16, 2009 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Renew ND, October 30, 2007
- ^ Hydro Continues Utsira Project . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Renew ND, October 30, 2007
- ↑ Holger Dambeck: Energy turnaround thanks to hydrogen: wind in the tank . In: Spiegel Online . October 25, 2011 ( spiegel.de [accessed January 27, 2018]).
