Homes Businesses Industrial Water Conservation Energy Independence Act Power Hour Pay-It-Forward Home / Rebates / Homes / Lighting / Calculate Your Potential Savings / Calculate Your Potential Savings Calculate Your Potential Lighting Savings Based on 365 days Calculate Savings Existing light bulb size (watts): Replacement bulb size (watts): Number of light bulbs: Hours of use per day: Electricity cost (Chelan PUD Average $0.03): Please correct the errors in red above to continue! Existing Bulb $0 0 KWH Per Year LED or CFL Bulb $0 0 KWH Per Year Switching to energy-saving Bulbs would save you: $0.00 - 0 KWH Per Year