Cost of carbon emission avoidance, per ton, by generation type: displacement of coal vs displacement of gas
Generation type Generation cost, $/kWh Emissions CO2, grams/kWh Price difference, $/kWh CO2 abated, grams/kWh CO2 avoidance, $/ton
from gas from coal from gas from coal from gas from coal
* In 2003, Ontario Power Generation, the company that owned and operated Ontario’s coal plants, received $0.04 per kilowatt-hour for their output. See Ontario Power Generation Annual Report 2003, p.15. http://www.opg.com/about/finance/Documents/2003_Annual_Report.pdf
Coal $0.04* 900 - - - - - -
Gas $0.15 378 - $0.11 - 522 - $210.73
Solar $0.49 0 $0.34 $0.45 378 900 $899.27 $500.00
Wind $0.12 0 -$0.03 $0.08 378 900 -$79.37 $88.89
Nuclear $0.062 0 -$0.088 $0.022 378 900 -$232.80 $24.44
Hydro $0.05 0 -$0.10 $0.01 378 900 -$264.55 $11.11