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Before installing a solar system, it’s important to estimate how much electricity it will produce and compare that to your electricity usage over the past 12 months. This will help you determine whether solar is a good fit for your property. The tools below can help, but keep in mind these are only estimates—not guarantees of annual production.
The National Renewable Energy Laboratory’s PVWatts tool estimates solar production for any location, regardless of utility. For best results, get at least one quote from a solar installer first so you know your system’s size, tilt, and other details.
To use the tool:
You can compare this estimate with your electric bill and solar quotes to evaluate your system’s performance.
If you’re a Delmarva Power customer, you can use their solar calculator, which factors in your actual energy usage to estimate:
Start by entering your address or logging into your Delmarva account.