Cogen Greenhouse Gas

1
Cogen Greenhouse Gas

• CO2 Emissions from Cogen Options with 1 or 2
  Solar Mercury Gas Turbines

2
CO2 from Gas Turbine

• One Turbine Option 3.7 million Th/year
• Produces 21,582 tons CO2 a year
• Two Turbine Option 6.4 million Th/year
• Produces 37,173 tons CO2 a year
• This is the direct emissions of CO2 from the
  Cogen Powerplant

3
CO2 Reduction from Boilers

• One Turbine Option 1.22 million Therms a year
  boiler fuel savings
• 7,140 tons a year reduction in CO2
• Two Turbine Option 1.46 million Therms a year
  boiler fuel savings
• 8,522 tons a year reduction in CO2

4
CO2 Reduction from Utility Powerplants

• One Turbine Option 37 million kWh/year
• 18,368 tons a year reduction in CO2
• Two Turbine Option 60 million kWh/year
• 30,080 tons a year reduction in CO2
• This is the reduction in utility powerplant
  emissions, assuming a marginal heat rate of 8,600
  Btu/kWh (SRAC equivalent)

5
Overall Effect on CO2 Emissions

• One Turbine Option
• 3,926 tons a year reduction in CO2
• Two Turbine Option
• 1,429 tons a year reduction in CO2