Per Alex Sørensen: B.Sc., Head of Dept. PlanEnergi PlanEnergi: Consultant Engineers More than 25 years with renewable heating biomass biogas solar thermal heat pumps district heating
European Initiative on Smart Cities Energy networks Heating and Cooling Innovative and cost effective biomass, solar thermal and geothermal applications Innovative hybrid heating and cooling systems from biomass, solar thermal, ambient thermal and geothermal with advanced distributed heat storage technologies. Highly efficient co or tri generation and district heating and cooling systems. Electricity Smart grids, allowing renewable generation, electric vehicles charging, storage, demand response and grid balancing. Smart metering and energy management systems. Smart appliances (ICT, domestic appliances), lighting (in particular solid state lighting for street and indoor), equipment (e.g. motor systems, water systems) To foster local lres electricity i production (especially PV and wind applications). i
Example: Dronninglund and Marstal 35 40 000 m² HP Gas motor Bio oil Load/usage 50 100 000 m 3 Very cost effective heat storage (demonstration)
Relative price of heat 140% 120% Relative heat price % 100% 80% 60% 40% 20% 0% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% RE fraction % Higher solar fractions seem reachable with out dramatic increase in heat price RE fraction: Part of load covered by solar and (wind driven) heat pump
Why is this possible? Interaction with liberal electricity market Benefits from combining technologies Very cheap and high performing solar systems Improved storage technology (simple/cheap) LARGE SYSTEMS small storage losses
Interaction with liberal electricity market
Interaction ti with liberal l electricity it market kt Many possibilities Flexibility Winter: High electricity price run CHP, earn money make cheap heat Low/medium electricity price run heat pump make relatively cheap heat Summer: Low electricity price run solar only make free heat Very low electricity price run heat pump p make free/cheap heat
Benefits from combining technologies Solar: Produce free heat Heat pump: Produce cheap heat Fast capacity regulation (load) earn money Reduce storage volume CHP: Produce valuable electricity earn money Fast capacity regulation (prod.) earn money Storage: Gives flexibility Makes combinations possible
Very cheap and high performing solar systems Collector parameters Improved storage technology The collector applied in Dronninglund dhas (simple/cheap) the efficiency parameters: n 0 : 0.815 (AR glass) a 1 : 2.43 (Teflon convection barrier) a 2 : 0.012 The collectors are placed with: slope: 30 (low angle is optimum due to shadows from row in front) azimuth: 0 (South) Row distance: 4.5 m (collector front to collector front) Collector field installed 200 /m²
Store parameters Smart District Heating Water pit with liner (un-insulated to earth) Improved storage technology (i (simple/cheap) l/h The top of the store is in Dronninglund assumed insulated with LECA ; average insulation thickness 0.5 m and in Marstal with 0.2 m coated PUR-elements Price: 20-30 /m 3 for storages more than 50,000 m 3
Statust Dronninglund (SUNSTORE 3) under approval by the local authorities. Supported by the Danish EUDP program Marstal (SUNSTORE 4) is under construction. Ready Spring 2012. Supported by EU 7 th Framework Pending issue: Tax on heat pump heat production
By the way: Solar district heating is exploding in Denmark International activities: IEE project SDH Take off SUNSTORE 4 IEA SHC Task 45 Large systems
Heating price 70 /MWh Solar heat N gas 60 50 40 30 20 10 0 1995 2000 2005 2010
LARGE Potential in Denmark AND elsewhere! DK Engineer Association, 2006: Energiplan 2030 2030: 2.7 TWh / 10 % of the DK district heating demand (8 mill. m²) Danish Energy Authorities, 2007: Solvarme status og strategi http://www.ens.dk/graphics/energipolitik/forskning_udvikling/strategier/solvarme/solvarme_status_og_strategi_2007_05_25.pdf 2030: 2.7 TWh / 10 % of the DK district heating demand 2050: 7 TWh / 40 % of the DK district i heating demandd Danish District Heating Association: Varmeplan Danmark 2010 http://www.fjernvarmen.dk/faneblade/forskningfane6/fogu/~/media/fogu%20konto/2010 02%20VarmeplanDanmark2010Hovedrapport.ashx 2020: 4mill. m², 1.4 TWh, 5 % of the DK district heating demand 2030: 8mill. m², 2.7 TWh, 10 % of the DK district heating demand
www.solarmarstal.dk Rise 4 000 m² / 2,8 MW Ærøskøbing 4 900 m² / 3,4 MW (enlarged 2010) Marstal 18 300 m² / 13 MW (to be doubled soon)
Hillerød 3 000 m² / 2,1 MW Sønderborg 6 000 m² / 4.2 MW Broager 10 000 m² / 7.0 MW Tørring 7 300 m² / 5.1 MW
Ulsted 5 000 m² / 3,5 MW Brædstrup 8 000 m² / 5,6 MW Nordby 2 500 m² / 1,8 18MW
Solar District i t Heating Take Off Public workshops See web for updated info www.solar district heating.eu
SUNSTORE 4: Demonstration plant in Marstal. 50% from solar (33,300300 m2) and heat pump. 75,000 m3 pit heat storage. Wood chip fuelled CHP. Ready 2012. Total heat production32,000 MWh/year International activities: 20 more plants with 100% RES, 50% solar, storage calculated in 10 countries Workshops
IEA SHC Task 45 just started: 1 st January 2011 Kick off meeting just held: 5 6 th April 2011 in Barcelona Next meeting in Canada: 24 25 th October 2011 Registration at homepage www.iea shc.org/task45/ Interested? Contact: jen@planenergi.dk
Strategic Energy Technology Plan (SET Plan) European Initiative on Smart Cities http://setis.ec.europa.eu/about setis/technologyroadmap/european initiative on smart cities
The future?! Renewable district heating and cooling!? Flexible Renewable CO 2 neutral Cost effective Thank you for your attention Per Alex Sørensen pas@planenergi.dk