Enter your monthly electricity bill and location to instantly estimate your system size, installation cost, savings, and payback period.
Your estimate will appear here
Adjust the sliders and options on the left, then click Calculate.
These are estimates. Get a free personalized quote to confirm exact costs for your home.
Get Free Quotes →Your monthly bill estimates your electricity usage. We divide by your city's utility rate and peak sun hours to calculate the system size you need.
We apply EnergySage's average cost per watt for your Maryland city ($2.57–$2.65/watt) to estimate the gross installation cost.
We subtract the Federal ITC (expired Dec 2025), Maryland's $1,000 grant, county-specific credits (up to $5,000), and the 6% sales tax exemption.
We calculate annual savings based on your utility rate and system production, compound 3% annual rate increases, and subtract your net investment.
View detailed guides for your city