How much does a carbon offset cost and what is the CO₂ benefit?

Each offset costs just $4, yet balances the effect of 500 pounds of carbon dioxide (CO₂) on the atmosphere. For Kentucky residents, 500 pounds of CO₂ is equivalent to 250 kilowatt hours (kWh) of energy use. The average Duke Energy residential customer in Kentucky uses 1,000 kWh of energy per month. So for $16 per month (or four carbon offsets), you could offset your home’s monthly energy use and carbon emissions.