Company Enerkon from Zagreb designed technical solutions for biomass CHP system, with installed capacity of 3.3 MWe+6 MWth. The company PHB Automatizacija worked on automation control system, Energocontrol was in charge of the electric-technical part, and Leko of the construction works.
The following scheme illustrates technical solution applied in biomass CHP plant Strizivojna.
Expected lifetime of the biomass CHP is 20 years, and the calculated payback period is 4.5 years. Results of the financial analysis were positive: the internal rate of return (IRR) is 27.68%, compared to interest rate of 8%, therefore the project can be considered profitable.
The biomass CHP plant was put in operation in October 2011. Since then, it produced electricity at a subsidized price for the next 12 years. The price is determined in Croatian kuna, and corrected annually for the inflation rate. The subsidized price for electricity from biomass CHP plant was:
|2013||1.2556 HRK/kWh||0.1657 EUR/kWh|
|2014||1.2832 HRK/kWh||0.1681 EUR/kWh|
|2015||1.2806 HRK/kWh||0.1683 EUR/kWh|
Annual production of electricity is around 17.75 GWh. The heat produced is used for the company needs (wood-drying, and different production processes).
Following the success of the project, the company announced the development of two more biomass CHP plants. The plant in Slavonski Brod, developed by the Strizivojna’s Hrast sister company Slavonia Wood Industry, was constructed with an installed capacity of 4.66 MWe + 12 MWth, and is currently under commissioning (2015). Total cost of the investment is estimated to be 17 million EUR.