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CCGT¤

Introduction¤

Combined cycle gas turbines are a type of power plant designed to maximise the power generation from a given fuel, usually natural gas, by combining two cycles. The first cycle is a conventional Brayton cycle (gas turbine), in which natural gas is burnt in the presence of compressed air, generating hot gases. Those are expanded to near-atmospheric pressure, but their temperature at the turbine outlet can be as high as 600°C. In other words, a significant amount of energy is wasted to the environment as thermal losses, and the concept of a combined cycle is to implement a second cycle, normally a steam Rankine cycle, to convert part of this waste heat of the flue gases into electricity. The Brayton cycle is termed the topping cycle, while the Rankine cycle is termed the bottoming cycle.

Typical CCGT configuration
Typical CCGT configuration

ES Model Parameters¤

All the parameters concerning the CCGT are listed in the table below.

entry_key value unit sets source_reference
CO2_A (layer) 0.314285 kt/GWh CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
ELECTRICITY_HV (layer) 1 - CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
NG_HP (layer) -1.5873 - CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
c_inv 824 MCHF/GW CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
c_inv 978 USD/kW CAN Hughes, David, (2018): "Canada's Energy Outlook: Current Realities and Implications for a Carbon-Constrained Future"
c_inv 1058 USD/kW CAN Lorenczik, Stefan; Keppler, Jan Horst, (2020): "Projected Costs of Generating Electricity 2020 – Analysis"
c_maint 11 USD/kW/yr CAN Hughes, David, (2018): "Canada's Energy Outlook: Current Realities and Implications for a Carbon-Constrained Future"
c_maint 21.1 MCHF/GW/yr CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
c_maint 51.82 USD/kW/yr CAN Lorenczik, Stefan; Keppler, Jan Horst, (2020): "Projected Costs of Generating Electricity 2020 – Analysis"
c_p 0.45 - CAN Hughes, David, (2018): "Canada's Energy Outlook: Current Realities and Implications for a Carbon-Constrained Future"
c_p 0.85 - CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
gwp_constr 183.79 kgCO2/kW CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
lifetime 25 y ROW Cavalcante, Thomas, (2017): "Combined-Cycle Plant Life Assessment"
lifetime 25 y CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
ref_size 0.3 GW CAN Garrett, Russ, (2023): "Canada Power Plants - Open Infrastructure Map ⧉"
ref_size 0.5 GW CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"
ref_size 0.7 GW CAN Hughes, David, (2018): "Canada's Energy Outlook: Current Realities and Implications for a Carbon-Constrained Future"
trl 9 - CAN Lorenczik, Stefan; Keppler, Jan Horst, (2020): "Projected Costs of Generating Electricity 2020 – Analysis"
trl 9 - CHE Moret, Stefano, (2017): "Strategic Energy Planning under Uncertainty"

References¤

Data Sources
Cavalcante, Thomas. (2017). "Combined-Cycle Plant Life Assessment"
Garrett, Russ. (2023). "Canada Power Plants - Open Infrastructure Map ⧉". Open Infrastructure Map
Hughes, David. (2018). "Canada's Energy Outlook: Current Realities and Implications for a Carbon-Constrained Future"
Lorenczik, Stefan; Keppler, Jan Horst. (2020). "Projected Costs of Generating Electricity 2020 – Analysis"
Moret, Stefano. (2017). "Strategic Energy Planning under Uncertainty"