Economic evaluation of renewable energy sources in a green power market

Biomass- and biogas technologies will at present not be able to compete with wind turbines. A possible solution is to split the market for renewable energies into separate markets, e.g. one for the wind turbine electricity and another one for bio electricity. Some of the analysed straw- and wood-chip fired plants have good economy. It is characteristic that the technology, which has most operation experiences has the worst economy. Existing cooperative biogas plants are expected to keep or obtain an acceptable economic. For new cooperative plants, which are established before 2002, a subsidy of almost 20% is required, before an economic balance is made. For cooperative plants, which is established after 2002, an economic balance will be difficult to make, even though renewable energy should get the maximal value 27 oere every kWh. It is the same with farm systems. Investors will not establish photovoltaic plants in several years for economic reasons. The large hydro-electric power plants generally have a good economy based on the present operational conditions and on present subsidies. With unchanged operations the plants will need subsidy for the power production of 0 to 26 oere/kWh. (EHS)