p. romanos , e. voumvoulakis , c. n. markides n. hatziargyriou · conclusions • tes-orcs can play...
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P. Romanos1, E. Voumvoulakis2, C. N. Markides3, N. Hatziargyriou1,2
1 National Technical University of Athens, School of Electrical and Computer Engineering, Athens, Greece
2 Hellenic Electricity Distribution Network Operator, Athens, Greece
3 Clean Energy Processes (CEP) Laboratory, Department of Chemical Engineering, Imperial College London, London, UK
September 2019
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Atherinolakkos Power Station
Crete, Maximum Electrical Power Consumption: 700 MW
Crete, Wind Parks installed: 200 MW
Crete, PV Parks installed: 100 MW
Crete, 3 X Thermal Power Stations: 708 MW
Transmission Power System of Greece
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Annual Cost of Energy Production in Crete & TES-ORCs Optimal Scheduling
Minimise:
Total Fuel Consumption: 177 M€
+
Start Up Cost of Local Units: 4.1 M€
+
Energy Not Supplied: 1.5 M€
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Efficiency 39.2%
Thermal Input 123 MW
Electrical Power 50 MW
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Efficiency 10.6%
Thermal Input 123 MW
Electrical Power 13 MW
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Oil-Fired Power Station Flexibility with and without TES-ORCs
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Oil-Fired Electrical Energy Production & Electrical Energy Production using TES-ORCs
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Derating Plant versus Steam Extraction
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Thermal Energy Storage versus NetGenerator Output
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Heat Rate Input versus Steam Extraction
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Rankine Cycle Efficiency versus Steam Extraction
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Transmission Power System of Greece
Atherinolakkos Power Station
Crete, Maximum Electrical Power Consumption: 700 MW
Crete, Wind Parks installed: 200 MW
Crete, PV Parks installed: 100 MW
Crete, 3 Thermal Power Stations: 708 MWAC Interconnection Athens-Crete: 150 MW
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Unit Commitment – Economic Dispatch Optimisation of TES-ORCs
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Typical Daily Operation of the Oil-Fired Power Station in Atherinolakkos
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Average Annual Daily Operation of the Oil-Fired Power Station in Atherinolakkos
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TES-ORCs Optimal Scheduling in Atherinolakkos
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TES-ORCs Cost –Benefits Analysis
Installation cost: 20 M€ + 3.5 M€/Hour of Storage
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TES-ORCs Discounted Payback Periods with Autonomous and Interconnected Transmission Power System of Crete
ORC-TES Discounted Payback Period
Autonomous With Interconnection
3.5 Years 10 Years
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Conclusions• TES-ORCs can play an important role for
increasing the Flexibility of Power Stationsand to contribute to Economic Dispatch
• In Atherinolakkos Oil-Fired Power Station, theFlexibility increases from 27-50 MW to 13-70MW
• 3.5 years pay-back period for theAutonomous Power System of Crete
• 10 years pay-back period for theinterconnected Power System of Crete
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Acknowledgments• Mr. George Kafiris with ELECTROMEC S.A.
• Mr. Alexios Sotiropoulos with Public PowerCorporation S.A. (PPC)
• Mr. James Bowers with Scottish and SouthernElectricity Networks (SSE)
• Mr. Richard Drew with Uniper
• Mr. Dimitrios Tsintzilonis with Salfo andAssociates S.A.
• Dr. Nikos Soultanis with Independent PowerTransmission Operator S.A. (ADMIE)
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Thank you for your Attention!
Dr.-Ing. P. Romanos