The plant, which was connected to the grid in July, uses biomass to superheat geothermal steam, increasing the energy efficiency and electrical output (by 5 MW) of the geothermal cycle.
The existing plant has been joined by a small "short chain" virgin biomass-fired power station, from forest wood, produced in a radius of 70 km from the plant. There is a particular focus on the management and maintenance of the wooded areas.
The biomass is used to superheat the steam entering the power station from a temperature of between 150°C and 160°C to between 370°C and 380°C. This increases the net power for electricity production due to greater enthalpy of the steam and to the performance of the cycle due to lower humidity in the production phase.
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