The Austin Energy system average carbon intensity is calculated as total greenhouse gas emissions at the point of combustion in pounds of CO2-equivalents divided by net generation in kilowatt-hours from all Austin Energy resources. Austin Energy generation resources include natural gas, coal and nuclear-powered units; renewable resources; and purchased power from renewable and non-renewable resources. GreenChoice® energy sales are subtracted from the net generation total since GreenChoice customers can claim their carbon intensity to be zero. Find more information at http://austinenergy.com/go/reports.
NOTE: As of 2017 the metric reported was changed to reporting lbs CO2/kWh. Years before 2017 has different metrics reported.

Austin Energy's energy efficiency programs help reduce the amount of air-polluting emissions released by power plants into the atmosphere. In fiscal year 2012, more than 70,000 metric tonnes of carbon dioxide was avoided. This helps meet Austin Climate Protection Plan goals by avoiding increases in power plant emissions.