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Introduction to the EnergyPLAN model

Aalborg University, September October 2005 PhD-course: Energy System Analysis I:. Introduction to the EnergyPLAN model. Henrik Lund Aalborg University Denmark. Content: Workshop aproach…!! Development aproach..!!.

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Introduction to the EnergyPLAN model

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  1. Aalborg University, September October 2005PhD-course: Energy System Analysis I: Introduction to the EnergyPLAN model Henrik Lund Aalborg University Denmark

  2. Content: Workshop aproach…!!Development aproach..!! • 1. (23 August): Introduction to studies made by the use of EnergyPLAN. Discussion of participants ideas of PhD projects and potential use of the model. • 2. (30 August): Details inside the model. How does it work? How are the modelling of specific components, units etc? Discussion of PhD-projects: Strengths and weakness of the model? • The period between 23 August and 5 September: Participants install the model and make familiar with the model and make som preliminary analyses. • 3. (6 September): Discussion of participants analyses. Results, problems, room for improvements of the model…!!! Etc..

  3. www.plan.aau.dk/~lund • Download EnergyPLAN • Download documentation • Links to journal articles (results) • Links to research reports (Danish)

  4. EnergyPLAN Model 6.0 Input Output Distribution Data: Demands Fixed electricity Flexible electricity District Heating Electricity District H. Wind MarketPrices • Results: • (Annual, monthly and hour by hour values) • Heat productions • Electricity production • Electricity import export • Forced electricity surplus production • Fuel consumption • Payments from import/export • CO2 emissions • Share of RES Solar IndustrialCHP PhotoVoltaic RES Wind and PV Capacities (MW) Distribution Factor Solar Thermal and CSHP (TWh/year) • Regulation strategy: • 1. Meeting heat demand • 2. Meeting both heat and electricity demand • Electricity Market Strategy: • Import/export optimisation • Critical surplus production: • reducing wind, • replacing CHP with boiler or heat pump • Electric heating and/or Bypass Capacities & Efficiencies CHP, Power plant, Heat Pump, Boiler Heat Storage Regulation Market prises Multiplication factor Addition factor Depend factor Marginal production Cost (Import, export) Stabilisation demands Fuel Types of fuel CO2 emission factors Fuel prices

  5. Energy System Import Export Wind Power Photo Voltaic Electricity Demand Power Plant Transport Flexible CHPunit CSHPunit Heat Pump Fuel Heat Demand Boiler DH-boiler Heat Storage Solar Thermal

  6. Energy System 6.2 Water Storage Wind Power Import Export Photo Voltaic Wave Energy Pump Turbine Electricity Demand Power Plant Transport Flexible Electro- lyser Heat Pump CHPunit CSHPunit Fuel Heat Demand Heat Storage Boiler DH-boiler Solar Thermal

  7. Overview • Initial calculations • From annual values to hour by hour • RES modifications • Market price modifications • DH production • Flexible demand • Optimisation calculations • Technical optimisation of regulation I, II, III or IV accordingly • Eventual market optimisation • Improvements by use of Heat storage • NEW: Calculating electricity storage and electrolysers • Reducing critical excess production • Electrcity market modelling • Calculating resulting fuel and CO2 outputs

  8. From annual values to hour by hour • Demands (elec. And district heating, eventual transport) • RES (wind and pv etc.) • Market prices • Fixed import/export

  9. RES modifications

  10. Market price modifications pi (DKK/MWh) = NPi * F + Pa + Facdepend * Dtrade

  11. DH production qDHP = qi - qsolar - qCSHP

  12. Flexible demand

  13. Overview • Initial calculations • From annual values to hour by hour • RES modifications • Market price modifications • DH production • Flexible demand • Optimisation calculations • Technical optimisation of regulation I, II, III or IV accordingly • Eventual market optimisation • NEW: Calculating electrolysers • NEW: Calculating electricity storage • Improvements by use of Heat storage • Reducing critical excess production • Electrcity market modelling • Calculating resulting fuel and CO2 outputs

  14. Regulation strategies • 1. Meeting heat demands • 2. Meeting both heat and electricity demands • 3. Like 2 BUT reduce CHP also when is needed for stabilisation reasons • 4. Like 1 BUT meeting triple tariff.

  15. Limitations • Stabilisation share • Minimum CHP 3 level • Heat pump share of district heating production

  16. Eventual market optimisation Marginal production costs compared to market prices define the production

  17. Energy System 6.2 Water Storage Wind Power Import Export Photo Voltaic Wave Energy Pump Turbine Electricity Demand Power Plant Transport Flexible Electro- lyser Heat Pump CHPunit CSHPunit Fuel Heat Demand Heat Storage Boiler DH-boiler Solar Thermal

  18. Electrolyser • Produce fuel in the case of critical excess production • Heat replace 1. boilers, 2. CHP and 3. heat pumps in the relevant DH-group. • Fuel is used to replace fuel consumption in CHP and boilers in the relevant DH-group.

  19. Electricity storage • Fill storage when positive critical excess production • Empty storage to replace condensing power plant production • Iteration of storage content untill the content in the beginning of the year is the same as in the end.

  20. Heat storage In two situations the storage can be loaded: • A: Increasing the use of HP in situations with electricity export. • B: Moving the electricity production from condensing plants, epp to CHP plants In two situations the storage can be unloaded: • C: Reducing the CHP production in situations with electricity export • D: Reducing the boiler production. B is secondary to A and D is secondary to C. The four loading and unloading cases are used in the following order: C-A-B-D.

  21. Overview • Initial calculations • From annual values to hour by hour • RES modifications • Market price modifications • DH production • Flexible demand • Optimisation calculations • Technical optimisation of regulation I, II, III or IV accordingly • Eventual market optimisation • NEW: Calculating electrolysers • NEW: Calculating electricity storage • Improvements by use of Heat storage • Reducing critical excess production • Electrcity market modelling • Calculating resulting fuel and CO2 outputs

  22. Critical Excess production 1 Reducing wind production 2. Reducing CHP in gr. 2 replacing with boiler 3. Reducing CHP in gr. 3 replacing with boiler 4. Replacing boiler with electric heating in gr. 2 5. Replacing boiler with electric heating in gr. 3 6. Reducing PV production 7. Reducing power plant in combination with wind and PV production

  23. Electricity Market modelling • 1. System prices • 2. Export bottleneck • 3. Both export and import bottlenecks

  24. Resulting fuel and CO2 outputs

  25. Results:

  26. Aalborg University, September October 2005PhD-course: Energy System Analysis I: Introduction to the EnergyPLAN model Henrik Lund Aalborg University Denmark

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