7-11 Air
It is unclear how the CO2 emission rates were calculated for the combustion turbines. Please provide the calculation methodology for the natural gas 814-lb/MW-hr and the ULSD 1227-lb/MW-hr values listed in Section 4.4.3.
RESPONSE 7-11
| The average CO2 emission rate while firing natural gas will be 781 lb/MW-hr. The average CO2 emission rates for each fuel were calculated using CO2 lb/hr emission rates and MW output values provided by the equipment manufacturer for base load operation as follows:
Natural Gas 399,000 lb/hr/turbine x 2 turbines / 1,021.183 MW = 781 lb/MW-hr
ULSD 577,000 lb/hr/turbine x 2 turbines / 940.536 MW = 1,227 lb/MW-hr
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RESPONDENT:
| Michael Feinblatt, ESS Group, Inc.
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DATE: | May 17, 2016
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