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Biomass CHP Plant Vienna, Simmering

circulating fluidiced bed boiler, CHP or condensation mode, steam process (520°C, 120 bar)

Contact persons:› Kerstin Schilcher
Keywords:CHP, district heating
Energy plant type:Thermal energy plant, Electrical energy plant
Project website:http://www.wienenergie.at/we/ep/programView.do?contentTypeId=1001&channelId=-26988&programId=17313&pageTypeId=11894
Start up dates:planning: 2010; construction: 2010; operation/commissioning: 2011
Feedstocks of current use:wood residues, wood chips
Source (Origin):forest-woodchips from the forests around Vienna, 80% of fuel from less than 100 km
Used systems:CHP plant, district heat
Total efficiency:80 %     ( more info )
Plant/system running time:2500 h/a     ( more info )
Type of final product:heat, power
Electric capacity:23500 kW     ( more info )
Thermal capacity:65700 kW     ( more info )
Savings of CO2:144000 t/y
Total budget:52 mil. EUR
Incentive type:Eco-electricity act
Involved companies:Wien Energie, Austrian Federal Forest Association, District Heating Vienna
Negative experiences:"During summer and in transient periods the power plant is operated in the condensing mode only, with an electrical gross efficiency of 37 %. That means, that from total 8,000 operating hours per year the plant will be operated in the combined-heat-and-power mode for only 2,500 hours per year. Thus, the annual fuel use efficiency is well below 50 % and the plant provides for only 2 % of district heat in Vienna, while it could deliver three times more.
In sum, this biomass plant is designed as a highly efficient power plant as regards emissions control and energy efficiency. However, due to its location this potential cannot be fully used (in Vienna, the supply of heat outweighs the demand in transient periods and during summer).
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This project is implemented through
the CENTRAL EUROPE Programme co-financed by the ERDF