Energy Efficiency: CHP & D"t#ct Heating

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1 GEODE Energy Efficiency: CHP & D"t#ct Heating Dr. Götz Brühl 1

2 Overview Energy concept: Basics Stadtwerke Rosenheim Energy concept Federal Government: power generation Operating efficiency of new gas motors Conclusion Energy concept Rosenheim: CHP and CO 2 2

3 1 Stadtwerke Rosenheim Energy concept: Basics Stadtwerke Rosenheim Markets and prices Energy concept Federal Government: power generation Conclusion Operating efficiency of new Energy concept Rosenheim:

4 ? Public utility = Energy and Water supplier Power Gas Water Heat Purchasing, Production Distribution Selling 4

5 and the rest 5

6 Power- and Heat generation and real Plant operation 6

7 2 Energy concept: Stadtwerke Rosenheim Energy concept: Basics Markets and prices Basics Energy concept Federal Government: power generation Conclusion Operating efficiency of new Energy concept Rosenheim: 7

8 Sankey Diagram for Germany 2008 Quelle: BMWi 8

9 Total final energy consumption in Germany 2007 (Ref.: BMWi) Illumination 2 % House heating 26 % Mechanical energy 43 % Water heating 5 % other process heating 23 % Quelle: 9

10 Total domestic energy consumption % 11 % 2 % 11 % 12 % 2 % 12 % 12 % 2 % 77 % 75 % 74 % % 13 % 2 % 2 % 16 % 14 % 71 % 68 % House heating Water heating Cooking Electrical devices 10 Ref.: Studie Energieszenarien für ein Energiekonzept der Bundesregierung 2010

11 Contribution of renewable energies to the TPES PJ/a Ref.: solar power, geothermal power, heat pump sewage gas incl. biogas waste, landfill gas biodiesel, other liquid fuels wood, straw, other ligneous materials photovoltaic wind power water power of public interest biomass and residual material of public interest wind water 11

12 CO2 emission reduction costs Photovoltaik Windenergie Solarthermie Dachdämmung Wärmedämmung Außenwand KWK mit GuD KWK mit BHKW Minderungskosten in [EUR / t CO 2 ] 12 Ref.: Studie Pluralistische Wärmeversorgung

13 3 Energy Concept of $ Federal Government of Energy concept: Basics Stadtwerke Rosenheim Markets and prices Energy concept Federal Government: power generation Germany: Conclusion Energy concept Rosenheim: Operating efficiency of new Elect#city Generation 13

14 Electricity Prices Germany: Year Strom Base next Year Strom Peak next Year Strom OffPeak next Year Strompreis in /MWh

15 Electricty Price Difference Germany - France (1) Preis D-F Preis D-F in /MWh

16 Electricty Price Difference Germany - France (2) Preis D-F Preis D-F in /MWh Wind- u PV-Einspeisung in MW

17 Wind- and Solar-Power-Production " 22000" 20000" Wind"2010" PV"2010" Wind+PV"2010" Leistung)in)MW) 18000" 16000" 14000" 12000" 10000" Wind+Solar-Power: 50% power: 4,0% of the year 10% power: 72% of the year Wind-Power: 50% power: 6,2% of the year 10% power: 61% of the year 8000" 6000" 4000" Solar-Power: 50% power: 5,2% of the year 10% power: 29% of the year 2000" 0" 0" 1000" 2000" 3000" 4000" 5000" 6000" 7000" 8000" Stunden)pro)Jahr) 17

18 Standardized grid load and wind power generation (year 2009) 18 Netz-Leistungen (normiert) 1,00 0,95 0,90 0,85 0,80 0,75 0,70 0,65 0,60 0,55 0,50 0,45 0,40 0,35 0,30 0,25 0,20 0,15 0,10 0,05 0,00-0,05-0,10-0,15-0,20-0,25-0,30-0,35-0,40-0,45-0, Stunden pro Jahr grid load residual load wind power generation

19 Duration curve of the electricity grid load [schematic] capacity peak load price medium load 4000 h/a grid load base load > 7000 h/a duration hours per year 19

20 Duration curve of the electricity grid load [schematic] capacity price peak load wind and solar power medium load >4000 h/a grid load base load > 7000 h/a residual load duration hours per year 20

21 Duration curve of the electricity grid load [schematic] capacity price wind and solar power peak load grid load medium load >4000 h/a base load > 7000 h/a residual load-1 duration hours per year residual load-2 21

22 Duration curve of the electricity grid load [schematic] capacity price CHP (partly from biomass) (able to regulate energy) wind and solar power grid load peak load medium load >4000 h/a base load > 7000 h/a duration hours per year 22 residual load-2

23 Duration curve od the electrical power prices residual load = grid load renewable energies price scenario 1 and 2 today Kond.-Angebot CHP supply duration per year 23

24 4Operating efficiency of new Stadtwerke Rosenheim Energy concept: Basics Markets and prices CHP gas engines Energy concept Federal Government: power generation Conclusion Operating efficiency of new 24 Energy concept Rosenheim:

25 Schema: spread marketing CHP Prices Fuel efficiencies, maintenance Prices Natural Gas Maintenance Gas engine CHP Electrical power Heat Carbon Credits (EUA) Heat Accumulators 25

26 Spark-Spread Gas Engines (1): Forward 40 Spark-Spread-GM Winter/Base/mit Wärme Spark-Spread-GM Sommer/Peak/ohne Wärme 30 Sparkspread in /MWh-el

27 Spark-Spread Gas Engines (2): Spot 80 Spark-Spread-GM Spot/Base/mit Wärme Spark-Spread-GM Spot/Peak/ohne Wärme Sparkspread in /MWh

28 Spark-Spread and Fuel-Switch 50 Spark-Spread-GM Winter/Base/mit Wärme Spark-Spread-GM Sommer/Peak/ohne Wärme Clean-Dark-Spread Y-ahead FuelSwitch-CO2-Preis-Diff. Y-ahead Sparkspread in /MWh

29 Sorted annual duration curve of heat generation Wärmeleistung in MW (Wärmegeführt) operation depending on heat demand Müll-Kondensat3,5bar GM GM-neu Notw.Dampferz.K2+4 RSHW Dauer in h/a

30 Sorted annual duration curve of heat generation Müll-Kondensat3,5bar GM_1 GM-neu_1 Notw.Dampferz.K2+4_2 RSHW_2 45 Wärmeleistung in MW (Spotmarkt) operation depending on spark spread Dauer in h/a

31 Revenues due to additional CHP and District Heating 800 FW-Ausbau in MW 0 increasing district heating Difference inyear s Result Veränderung des Jahresergebnis in k KWK-Zubau in MW Increasing CHP Capacity

32 Optimization of Energy Supply, Plant Operation a. Markets Forecast Plant data Waste incineration Gas/Fuel Oil plant Gas engines Hydropower Power load forecast Gas load forecast Heat load forecast Grid load forecast EEX-spot-price forecast Prices Bofit: Optimization of costs a. revenues Operation Waste incineration Gas / Fuel Oil plant Gas engines Gas storage Heat accumulator Gas storage Power delivery contracts EEX-spot bid Heat accumulator Gas delivery contracts Power delivery contracts Oil prices Gas delivery contracts CO 2 prices 32

33 Energy trading: Trading books for electricity, gas, CO2, Trading Distribution speculative book strategic book Wholesale market EEX + OTC hedge book sales book customers short term balance 33

34 5 Energy concept of Rosenheim: Implementation in $ Energy concept: Basics Stadtwerke Rosenheim Markets and prices Energy concept Federal Government: power generation CHP field Conclusion Operating efficiency of new Energy concept Rosenheim:

35 Gas engines Jenbacher

36 New gas engine

37 New gas engine 920 (1) 37

38 Wood gasification: gas engine 38

39 Wood gasification no. 5 under construction (status 39

40 Wood gasification testing plant no. 6 (2. Febr. 2011) 40

41 Sankey diagram of wood gasification and combusition Wood gasification (aim) Interne Vorwärmung Holzvergasung Holzgaswärme 47% Wärme efficiencies approx. calculated 100% Holz Holz Holzvergaser Holzgas Gasmotor Motor Nutzwärme Strom 30% Strom Abwärme Motor Abwärme Holzvergasung 23% Verluste Wood combusition with counterpressure steam process (with heat utilisation) Strom 15% Strom 100% Holz Holz Holzkessel Abwärme Kessel Dampf Dampfturbine Naßdampf Kondensator Wärme 58% Wärme Abwärme 41 27% Verluste

42 6 Energy concept of Rosenheim: Energy concept: Basics Stadtwerke Rosenheim Markets and prices Balancing and CO 2 Energy concept Federal Government: power generation Conclusion Operating efficiency of new Energy concept Rosenheim: 42

43 Electricity: the Grid is balanced in any Second (2) A + B + C bleibt gleich, d.h.: wenn C hinzu kommt wird B weniger C Stromkunden in Deutschland B A 43

44 Energieflüsse zur Bilanzierung in Rosenheim Primärenergie Zwischenprodukt Energieträger Verbr.Anlage Verbrauchsart Untergruppe Laufwasser Erdgas Biogas A1 A2 A3 A1Ce A2B2 A3B2 A6B3 A7B3 A7B4 Dt. Strommix A5B5 A8B6 B1 Gas-KWK B1Ce Holzgas-KWK Klärgas-KWK Müll-KWK Biomasse-KWK B2 B3 B4 B5 B6 B2Ce B2Cf B3Ce B3Cf B4Ce B4E4 B5Ce B5Cf B6Ce B6Cf B5E4 Strom Fernwärme Ce Cf CfE5 CfE6 CeD1 CeD2 Stromheizung El. Wärmepumpe D1 D2 D1E6 D2E6 CeE1 CeE2 D6E2 D2E3 Stromnetzverluste Licht & Kraft Kälte & Entfeucht. Prozessdampf E1 E2 E3 E4 E2F1 E2F2 Raumklima Prozesskühlung F1 F2 Erdöl-Produkte A4 A2B7 RSHW B7 B7Cf A2Cg A3Cg Gas Cg CgD3 CgE7 Gaskessel D3 D3E6 Wärmenetzverluste Wärme E5 E6 E6F3 E6F5 E6F4 Prozesswärme TW-Erwärmung F3 F4 Müll Holz Klärschlamm Sonst. Biomasse A5 A6 A8 A7 A6Cg A9D6 A9D7 Holz Ch ChD4 ChD5 Holzkessel Holzofen, Kamin Photovoltaik Solarthermie D4 D5 D6 D7 D4E6 D5F5 D7E6 Raumheizung F5 Sonnenstrahlung A9 Ölkessel D8 D8E6 Auto (Privat) F6 Biokraftstoffe A10 A4Cö A10Cö Öl Cö CöD8 CöE7 Verkehr E7 E7F6 E7F8 E7F7 LKW (Gewerbl.) F7 44 Zu ermitteln ist für jede Verknüpfung (Pfeil) und jeden Kasten die Jahresarbeit 2009 Bus (ÖPNV) F8 Br

45 Scheme of the CO2-Balancing Strombedarf Wärmebedarf Strombedarf nach Herkunft aufteilen Strombezug gemäß dt. Strommix Strom- und FW- Erzeugung in Rosenheim EEG Kernkraft Veränderung der Stromerzeugung in D durch Produktion in RO ermitteln Steinkohle Braunkohle Gas Sonstige Einsatzweise nach Wärmebedarf und Strompreisen berechnen Müll-Kessel Gas Fernwärme Heizöl Heizung Warmwasser FW vorgeben, Rest aufteilen Abnahme berechnen Dampfkessel Gasmotoren RSHW Holzvergasung CO 2 -Mengen 45

46 CO2-Balance of Rosenheim for Electricity and Heat Supply % 34 % % CO2-Emissionen in to/a % 20 % 10 % CO2-Reduction 2 % 0 0 % w/o Stw % CO2 emissions (w/o traffic emissions) Reduction compared to

47 CO2-Balance of Rosenheim for Electricity and Heat Supply % 100 % CO2-Emissionen in to/a % 10 % 2 % 0 % Target: 0 Target: 100% w/o Stw % 50 % 25 % 0 % CO2-Einsparung CO2 emissions (w/o traffic emissions) Reduction compared to

48 CO2-Emissions CO2-Emissions in to/a ohne Stw CO2: el. generation out of RO CO2: gas u. oil for heating CO2: CHP in RO 48

49 Electricity Production of Stadtwerke (excl. Hydropower) El. Generation in GWh/a w/o Stw Waste incineration Steamboiler Gasmotors 1 Gasmotor 2 Gasmotor 3 Wood gasifiction 49

50 7 Conclusion Energy concept: Basics Stadtwerke Rosenheim Markets and prices Energy concept Federal Government: power generation Conclusion Operating efficiency of new Energy concept Rosenheim:

51 Energy Supply of Rosenheim 2009 Strom aus dt. Netz EEG-Strom aus RO Stromnetz Strom Strombedarf Müll MHKW Gas-/Öl- Kessel Gasmotoren Fernwärmenetz Wärme Gas Gasnetz Wärmebedarf Gaskessel Wärme Öl Öl-Kessel Wärme 51

52 Energy Supply of Rosenheim 2025 Strom aus dt. Netz EEG-Strom aus RO Stromnetz Strom Strombedarf Müll Holz MHKW Gas-/Öl- Kessel Gasmotoren Holzgas Fernwärmenetz Wärme Gas Gasnetz Wärmebedarf Gaskessel Wärme Öl Öl-Kessel Wärme 52

53 Pillars of a sustainable energy supply of Stadt Rosenheim Reliable, eco friendly and affordable energy supply CHP waste utilization wood and other biomass district heating Employees with know-how, commitment, motivation and innovation 53

54 &ank y' for y'r a(ention! 54