chp in a windy system - vok
TRANSCRIPT
CHP in a windy system
Fabian Levihn
R&D Manager at Fortum Värme
Research fellow at the Royal Institute of Technology (KTH)
Stockholm district heating networkHeat: 4.8 GW, 12 TWh anually
Cooling: 220 MW, 450 GWh
anually
Heating storage: 200 MW,
1800 MWh
Cooling storage: 55MW, 400
MWh
4 larger utilities cooperates:
-Fortum Värme
-Söderenergi
-Norrenergi
-E.On.
68oC normal supply
60oC in low temp areas
115oC along distributional
highways.
41oC average return temp
Maximum ashived ∆t in
distribution during 2015 was
78oC
Network losses about 9%
Fittja
IGELSTA
HÖGDALEN
HAMMARBY
Lidingö
HMC
Orminge
Årsta
Skogås
Farsta
VÄRTAN
Akalla
HÄSSELBY
BRISTA
Järfälla Sollentuna
LFV/Arlanda
Sollentuna/Rotebro
Vilunda
Norrenergi
Figure made by Fabian Levihn with data from SVK
Figure made by Fabian Levihn with data from SVK
Figure made by Fabian Levihn with data from SVK
Bottom-up supply curve
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0 5000 10000 15000 20000 25000 30000 35000
SEK/MW
MW
Electric power, supply curve
High renewables
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SEK/MW
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Electric power, supply curve
Nuclear/CHP revision, low renewable High renewables
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SEK/MW
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Electric power, supply curve
Nuclear/CHP revision, low renewable High renewables
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SEK/MW
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Electric power, supply curve
Nuclear/CHP revision, low renewable High renewables
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SEK/MW
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Electric power, supply curveInfluence of EU ETS on spot price
High renewables
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SEK/MW
MW
Electric power, supply curveInfluence of EU ETS on spot price
High renewables
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0 5000 10000 15000 20000 25000 30000 35000
SEK/MW
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Electric power, supply curveInfluence of EU ETS on spot price
High renewables
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8750
Heat
Po
wer
[MW
]
Fossile-oil HOBs
Wood chips CHP, KVV8
Waste CHP, Högdalen 1-4 and 6, Brista B2
Coal/Bio CHP, closed 2022
Rejected waste / bio CHP, IKV
Heat Pumps
Bio pellets CHP, Hässelby 1-3
Solid bio HOBs, and turbine bypass
Bio-oil HOBs
Wood chips CHP, B1
Wind power and CHP, general boundary conditions
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0
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-16-14-12-10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
% of Installed Capcaity
Temperature in Celsius
Share of installed capacity windpower in relation toair temperature in Stockholm
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-3000 -2000 -1000 0 1000 2000 3000 4000
Frequency
∆MW
1h change
12h change
Acceleration of wind power
NPE – Net Power Export
NPE describes if we are a net producer
or net consumer of electric power.
Theoretically, NPE in our system could
range from -594 to +586 MW of electric
power.
Basically, NPE is calculated by adding
production to the consumption of
electric power.
-200
-150
-100
-50
0
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150
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NPE [MW]
Time [h]
NPE – Net Power Export
NPE describes if we are a net producer
or net consumer of electric power.
Theoretically, NPE in our system could
range from -594 to +586 MW of electric
power.
Basically, NPE is calculated by adding
production to the consumption of
electric power.
-200
-150
-100
-50
0
50
100
150
200
NPE [MW]
Time [h]
NPE and electricity spot price during January 2016
-2200
-1700
-1200
-700
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-200
-100
0
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KVV1
KVV6
HÄV G3
HÄV G2
HÄV G1
BRI G1
BRI G2
HDV G6
HDV G1
SE3
NPE
[MW]
SE3 price
SEK / MWh
SEK : £
1:11
Slutsatser
• Många faktorer talar för att lönsamheten i flexibilitet ökar i framtiden
• Kraftvärme/värmepumps combo är troligtvis väl anpassat för framtiden
• Termiska lager konkurrenskraftigt mot andra alternativ och bryter tidsberoendet mellan el och värmeproduktion/konsumtion
• MEN kan vara svårt med lönsamhet på kort sikt, även om konkurrenskraftiga alternativ är få.
• behov av fungerande marknadsmodeller
30