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European Economic and Social CommitteeSustainable Development ObservatoryUAB Vilniaus Energija, Biomass unit in Vilnius CHP-2Raimondas Valentinas STIGA Projects performance director Impact Study of the EU Renewable Energy DirectiveStudy Visit Lithuania: Vilnius, 15 May 2014
Vilniaus energija Klausiate - atsakome Vilniaus energija
The beginning • EstablishedinJanuaryof 2002. • ActivitybeganinAprilof2002. • Companyreorganizationandoptimization. • Heat: • 200 000 flats • 7833administrative, commercial, industrialobjects; • 183000 bills per month. • Establishedin 1998. • ThefirstcontractwassignedinOctoberof 1999 (700 thousand EUR). Afterthatfastincrease. • Heatproductionandsupply. • Heat: • 65 299flats • 2.016 administrative, commercial, industrialobjects; • 58 381 bills per month.
Palanga Dalkia inLithuania Litesko 1042MW (heating) 17 MW (electricity) Vilniaus energija 2041,75 MW (heating) 388,8 MW (electricity) Telšiai Biržai Sargėnai (Kaunas) • - 11cities • About 41 percent of Lithuanian • heat sector • More than 700 000 residents • Annual turnover- 281MEUR. • 1421employees • - Production of heat- 3,8 TWh/y • Production of electricity- 1,1TWh/y • 1048 km of heat network Kelmė Kazlų Rūda Vilkaviškis Druskininkai Marijampolė Vilnius Alytus
Telsiai 5 MW 35,552GWh Kybartai 1,5 MW 7,592GWh KazluRuda 3 MW 14,686GWh Vilkaviskis 2,5 MW 27,053GWh Palanga 6,4 MW 44,350GWh Kelme 5 MW 24,371GWh Birzai 8 MW 28,984GWh Druskininkai 12,19 MW 69,179GWh Alytus 20,2 MW 5,4MW el 112,706GWh 47,796GWh el Marijampole 16 MW2,5MW el 123,437GWh 11,383 GWh el Consumption of biomass Vilnius 72 MW 16,8 MWel 499,320 GWh 102,898 GWh el GWh th - heat production of biomass per year GWh el - electricity production of biomass per year
An Example of Integrated Management: Vilnius District Heating Systems 15 Year Concession Agreement signed with Dalkia in 2002 465 MW th BH8 604 MW th 360 MW el CHP3 CHP2 932MW th 28,8MW el 40,75MW th BH 7 CHP- combined heat and power plant; BH- boiler-house. 6 6
Vilnius Combined Heat and Power Plant No. 2 (E-2) • Electric capacity – 28,8 MW. • Heat capacity – 932MW.
Vilnius Combined Heat and Power Plant No. 3 (E-3) • Third largest power plant in terms of electric capacity in Lithuania (following the Power Plant of Lithuania and Kruonis Pumped Storage Power Plant). • Electric capacity in cogeneration mode – 360 MW. • Heat capacity – 604 MW.
Regardless of inflation during the period (~ 30 percent), fixed price hasn't changed a lot. This was made mostly because of investments and good management which increased effectiveness of company. Unfortunately we have no influence to increasing gas prices.
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Boiler after reconstruction Chimney Sand tank Fuel tank AMS ESP Flue gas condenser and WESP Primary air BFB Ash removal system
Gas boiler nr3 Biofuelboiler nr4 Gas boiler nr5 40 bar(a)collector 1,2 bar(a) header New T-5 turbine T-3 turbine T-4 turbine 16,67MWe 12 MWe 12 MWe
From boiler <200 mg/Nm3 ~180-200°C To chimney1-5 mg/nm3 ~50-55°C Water separator ID fans WESP Flue gases economaizer Water treatment modul To WH boilers~50-60°C From heating network ~40-45 °C Clean condensate to electric magnet Flue gases condenser (capacity 12-18 MW, depends on fuel moisture, water temperature, flue gases temperature)
Flue gases condenser • FGC - for recover heat from flue gas and for reducing CO2 emissions • By using of FGC bio mass boilers efficiency increased 20-25%, that lets return approximately 102.4 GWh annual heat energy( and that is about 3% of heat energy which is produced in E-2 and E-3 power plants) • FGC reduces natural gas costs, have a long operation period (~20 years) and have a low operational cost • Good payback
VILNIUS CHP-2 BIOMASS UNIT PROJECT • The Vilnius CHP-2 biomass unit projects: • Start of BFB boiler installation - June 2005: • Retrofit a 1953 existing boiler (Thermal capacity - 60 MW, from it 12 MWel). Installation of a bubbling fluidized bed, construction of fuel handling system and electrostatic filter and etc.; • Beginning of operation: October 2006. Annual output: 420 GWh (heat) and 64.8 GWh (electricity); • Fuel: from 200 to 220 th. t. of woodbiomass (70% also 10% of straw from it) and peat 30%); • Gas consumption by Vilniaus Energija reduced by 8%, CO2 emissions cut by 96 000 t. per year; • Investments - 11 700 k€. • Installation of new 16,7 MWe turbine instead of old one 12 MWe, output of electricity increased by33,1 GWh: • Investments - 7 183 k€. • Flue gas condenser started to operate in April2010: • 54 ,1 GWh/year flue gas heat recovery, CO2 cut by 12 000 t.; • Investments - 7 860 k€. Total – 26 743 k€.
Thank You for Attention Vilniaus energija