50-State Solar Comparison

How Does Your State Compare?

Solar economics vary more by state than almost any other home-improvement decision. The same 8 kW array that pays for itself in under seven years in Hawaii could take more than fifteen in North Dakota — not because the equipment differs, but because electricity rates, sun resource, net-metering rules, and incentive stacks all change the moment you cross a state line. This table puts every state on the same yardstick so you can see, at a glance, where solar pencils out and where it needs a closer look.

The metrics here are not guesses. Cost-per-watt figures come from installed-price data we maintain across thousands of ZIP codes. Electricity rates use the EIA's April 2026 residential release, which is several months fresher than the data behind most public comparison pages. Production values are representative NREL PVWatts yields for each state's centroid. And the net-metering column reflects the actual policy regime in force — full retail, net billing, NEM 3.0, avoided cost, or none — because that single rule can swing battery economics more than the panel brand on your roof.

How to Read the Metrics

Start with the grade and the payback column together. A short payback with a B grade or better means solar is broadly competitive in that state — your main job is to confirm your specific roof and rate. A C or D grade doesn't mean solar is impossible; it means the central tendency is weak and your personal numbers (orientation, shading, actual utility tariff, battery need) will determine whether the deal works. Use the ROI Calculator to model those specifics.

• $ / Watt — installed cost before incentives. Lower is better; the national median sits near $3.07.
• Rate ¢/kWh — residential electricity price. Higher is better for solar, because every kWh you generate displaces a pricier bill.
• Prod kWh/kW — specific yield, how many kWh each kW of panels generates per year. Sunnier states clear 1,600+; cloudy ones struggle past 1,100.
• Payback yr — years to break even on an owned system with no federal credit (the honest post-OBBBA baseline).
• Incentives — count of distinct active state/local programs (tax credits, exemptions, rebates, SREC markets, low-income offerings).
• NEM Policy — the export-crediting regime. Full retail is the gold standard; net billing and avoided cost push you toward a battery.
• Battery % — share of new solar installations pairing storage, derived from the state's NEM regime and SEIA Q2 2026 market data.

Key Findings

Three patterns stand out. First, high electricity rates beat high sun. Hawaii, California, and Connecticut grade at the top not because they are the sunniest (they aren't) but because their utility rates are among the nation's highest — every kWh of self-generation is worth more. Second, net metering is the swing factor for batteries. States on NEM 3.0 or net billing (California, Arizona, Arkansas) show battery attach rates above 50% because storage is the only way to capture the value of exports. States with full retail net metering sit closer to 30% — batteries are optional, not essential. Third, the South is bifurcated: Texas and Florida pair cheap installations with decent sun for solid economics, while states with low rates and no net metering (Alabama, Mississippi) lag despite favorable climates.

The grade distribution tells the story: only a handful of states earn an A, the bulk cluster in the B band (viable with good returns), and a small tail lands in D territory where payback stretches past fifteen years. If your state is in that tail, focus on the levers you can control — a south-facing unshaded roof, a correctly sized system, and a careful look at whether time-of-use rates or a battery can unlock value the headline numbers miss.