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OREF meeting 05/11/2019 presentation

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Presentation from Hannah Marczinkowski at the November meeting from the Orkney Renewable Energy Forum on District heating, AAU energy planning and energyPLAN research

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OREF meeting 05/11/2019 presentation

  1. 1. Energy Planning in Denmark / for Islands Intro to District Heating & t he pot ent ial f or Orkney H a n n a h M . M a r c z i n k o ws k i P h D R e n e wa b l e E n e r g y f o r I s l a n d s
  2. 2. Danish DH History 1903: Denmark’s first district heating power plant; followed by National development led by the local municipalities 2019: 65% coverage • Combined Heat and Power (CHP) instead of only power production • Waste heat from incineration plants & industry • Additional heat-only boilers • Increasing use of biomass and solar heat • Low temperature DH (4th generation) • Connection requirements • “Normal” and simple heat in urban areas Aalborg DH © H. Marczinkowski
  3. 3. Why Danish district heating?  Danish Board of DH (DBDH): https://dbdh.dk/news/
  4. 4. DH expansion Aalborg Aalborg Forsyning, Varme QGIS Aalborg DH © H. Marczinkowski
  5. 5. DH in Europe (baseline & recommended) 2%
  6. 6. DH as part of the Smart Energy System www.en.plan.aau.dk/research+groups/SEP
  7. 7. Example Samsø ”Denmark’s energy island”, 3700 inhabitants Running on wind and biomass 4 district heating networks • 120-400 houses • 35% island coverage • 99% sustainable (local farming (by-) products) EVs, Hybrid ferry Samsø Energy Academy Part of SMILE project https://arkiv.energiakademiet.dk
  8. 8. Example Samsø ”Denmark’s energy island”, 3700 inhabitants Running on wind and biomass 4 district heating networks • 120-400 houses • 35% island coverage • 99% sustainable (local farming (by)products) EVs, Hybrid ferry Samsø Energy Academy SMILE project https://arkiv.energiakademiet.dk
  9. 9. Samsø DH Samsø today: • Exporting 75% of local wind production • Relying 95% on oil for transport • 2nd generation: power to heat?
  10. 10. 0 20 40 60 80 100 120 140 Samsø 2015 Samsø 2030 Orkney 2014 GWh/year Coal Oil DH Oil Gas Biomass DH biomass Solar DH solar HP Electric DH HP None Heat Supply on Samsø & Orkney
  11. 11. 0 20 40 60 80 100 120 140 Samsø 2015 Samsø 2030 Orkney 2014 GWh/year Coal Oil DH Oil Gas Biomass DH biomass Solar DH solar HP Electric DH HP None Heat Supply on Samsø & Orkney
  12. 12. Orkney www.heatmap.scotland.gov.uk https://heatroadmap.eu/peta4/
  13. 13. Orkney research done https://doi.org/10.1016/j.energy.2019.03.103
  14. 14. Research example & results 20% DH share in Orkney (part of SMILE study): • From various, old, individual technologies to one common solution • Using heat pump & boiler (weather dependent) • Results: • +2%p RES • -7.7 kt (4%) CO2 • -9% export/curtailment • -2% annual system (socio-economic) costs • -12 GWh fuel consumption https://heatroadmap.eu/peta4/
  15. 15. Example Föhr Installs 2017-2019 Natural Gas combined heat and power units Natural Gas peak boilers (tourism) 155 connections 11 km metal pipes 40 m3 thermal storage Power2heat Solar thermal reducing 85% of Nat. Gas Straw boiler ”The problem is the consumer’s freedom to choose a provider” http://energiegenossenschaft-foehr.de/
  16. 16. What can we learn? • DH is simple for the consumer and often cheaper once installed • Thermal energy storage better than electricity storage • Can be locally owned • Can integrate local biomass or waste heat (& solar for summer demands) • Can be combined with excess electricity (& CHP for more flexibility) • You need transmission + distribution network, heat exchanger, pumps • Pipes can be laid like new water pipes, glass fibre or other cables • Has to be coordinated with housing insulation • Requires heat density & connections https://visibleearth.nasa.gov/
  17. 17. Energy Planning for Islands Thank you for your attention! H a n n a h M . M a r c z i n k o ws k i P h D R e n e w a b l e E n e r g y f o r I s l a n d s ( l i n k ) S E P A a l b o r g U n i v e r s i t y ( l i n k ) h m m @ p l a n . a a u . d k

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