Renewable Energy Calculators
Our commitment to sustainability includes helping our customers find ways to ensure a sustainable energy future for generations to come.
These renewable energy calculators can help you find ways to save energy and money whether you are considering solar or just trying to make a few changes to your daily activities.
Every little bit helps.
Solar Cost Calculator
Are you considering solar for your home? Solar calculations are a great way to begin exploring solar options. These calculators provide estimated costs and savings, and payback period estimates, by analyzing your current electricity bills, rooftop and solar pricing in your area.
Calculate your costs
Get personalized solar savings estimations, powered by Google Earth. Estimated savings are calculated using your roof size and shape, shaded roof areas, local weather and estimated electricity prices, solar costs, and other estimated incentives.
Google’s Project SunRoof
Carbon Footprint Calculator
Many of your daily activities - such as using electricity, driving a car, or disposing of waste - cause greenhouse gas emissions. Together these emissions make up your carbon footprint. The average footprint for a person in the U.S. is 16 tons compared to the rest of the globe where it’s closer to 4 tons. Everyone's carbon footprint is different depending on their location and behaviors but knowing how you impact the environment could help you make cleaner energy decisions.
Calculate your costs
Find out how you can play your part in supporting a cleaner and more sustainable environmental future. EPA’s Carbon Footprint Calculator
* SDG&E doesn’t endorse any particular contractor or the calculated savings above. Depending on the amount of solar energy you want to produce or your carbon footprint, an estimate is provided to help inform your decision making. Any changes to rates and/or rate structures and incentive availability may impact the amount of savings in future years. The California Public Utilities Commission is currently evaluating electric rate structures which could future savings.