Wattcrunch
✦ PremiumFree Solar Calculators & Incentive Finder
Estimate solar panel size, cost, savings, payback, and incentives with free US solar calculators using NREL PVWatts data and current 2026 rules.
Free, accurate solar calculators and an up-to-date incentive database for US homeowners. Updated for 2026: the 30% federal solar tax credit for homeowners ended on Dec 31, 2025. We’ll carry them through system sizing, solar production, savings, financing, and incentives so you don’t keep retyping the same assumptions. Import a text-based PDF, CSV, or text export with monthly kWh.
Pricing & access
Wattcrunch is a paid product. Check wattcrunch.tech for current plans.
Frequently asked questions
What is Wattcrunch?
Wattcrunch is free Solar Calculators & Incentive Finder. Estimate solar panel size, cost, savings, payback, and incentives with free US solar calculators using NREL PVWatts data and current 2026 rules.
Is Wattcrunch free?
Wattcrunch is a paid product.
What are the best Wattcrunch alternatives?
People comparing Wattcrunch also look at 2extract, 3DTUNNERS, AIDeckly, AIMakeTattoo. See all options in the Design Tools category on SiftFox.
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