1. BIOENAREA regional examples Transition from fossil fuels to biofuels - Town of Elva district heating network Martin Kikas, Jaanus Uiga Tartu Regional Energy Agency Case study done by project Woodenergy Kozani, 21 of November 2012

2. 2 District Heating in Estonia 60% of the population used DH 70% of heatenergy consumption in DH 151 out of 226 local municipalities 287 boiler houses >1447 km of DH pipeline  Natural gas 44%  Wood fuels 25% Data 2010, According to National Audit Office Estonia and Statistics Estonia

3. 3 District Heating in Estonia Average price of MW·h of heat 60 €/(MW·h) Median price of MW·h of heat 74,5 €/(MW·h) For smaller companies – 70% of costs is made on fuels (natural gas; shale oil)* Data from august 2012 *Estonian Competition Authority. Aastaraamat 2011.

4. 4 District Heating in Elva Managed by OÜ Elva Soojus Shares 100% owned by town of Elva One DH network divided between 3 grids o Nooruse o Kirde o Haigla

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6. 6 DH in Elva: Boiler Houses Boiler HouseBiomassOil Boiler HouseBiomass, MW Oil, MWAnnual production, MWh Nooruse45,810400 Kirde1,31,5 + 1,53600 Haigla0,750,5 + 0,51200 Enics0,87 + 0,75*Not known * only used when it’s not the usual heating period

7. 7 DH in Elva: Distributing Network Boiler HouseBiomassOil DH Network Lenght of pipeline, m Heatable surfaces, m2 Consumpti on, MWh/year* Losses, MWh/year * Kesklinna2*3432598179502**940** Kirde2*1358190303209441 Haigla Total 2*140 2*4930 3202 82049 1092 13803 179 1560 11,3% * Calculated from the hourly temperature data of 2010, that has been normalized using base degree days ** For the Kesklinna heating network, the actual full year data was not available, therefore the estimated values are used.

8. 8 The amount of woodchips needed, m3/a 29118,6 The amount of shale oil needed, t/a 25,2 Heat energy production to DH network MWh/a 15362,4 Heat losses, % 11,3 DH in Elva: Energy Production 2010

9. 9 Road to efficiency…Major investments InvestmentYear of completion Investment, EUR Subsidy, % Kirde DH pipeline I2005114 8070 Kirde boiler plant2006327 66690 Kirde DH pipeline II2006150 77578 Nooruse boiler plant2007600 95754 DH pipeline to Murumuna kindergarten 2008 42 7690 Kesklinna DH pipeline2011703 90950 Haigla boiler plant (to oil shale)2000 46 65541 Haigla boiler plant2012268 39990 Total2 255 93860

10. 10 Major Investments: Conclusions 197,9 EUR per kW of biomass-fired boiler heat power output 205,3 EUR per m of DH dual pipeline 27,5 EUR per m 2 of net heated surface * The standard expenditures were not taken into account

11. 11 Conclusions, price 52,28 EUR/MWh

12. Conclusion, emission PollutantTotal emission t/a OIL-SHALE Total emisson t/a NOx9,67,0 CO2494083+123 Heavy metals25,5 kg/y8,5 kg/y In year 2010 in Elva was avoided 4734 t of CO2 em. For chiping and transport of fuel emission is 8 kg CO2 /MWh

13. Conclusion, future perspective Different development scenarios to be sustainable: more consumers closer involvment in energy suply chain connecting grids to one network CHP use other renewable resources (solarenergy, ground –thermal energy etc )

14. Keep moving! Thank you!