Free solar tools
Four tools covering residential savings, commercial ROI, whole-home energy upgrades, and energy community status. No contact information required to use any of them. All residential tools apply zero federal credit -- the Section 25D residential credit expired December 31, 2025.
Available tools
Enter your monthly electric bill, state, and utility. Get a payback estimate, estimated system size, state incentive summary, and annual savings range -- all with zero federal residential credit applied.
You enter
You get
Enter facility energy spend, state, and system size. Model the Section 48E federal credit (30 percent base), MACRS 5-year depreciation, bonus depreciation, and projected payback period. Includes the construction-start deadline.
You enter
You get
Model solar, battery storage, heat pump, and EV charging as a combined system. Shows how each upgrade affects your grid dependence, monthly bill, and total cost over 10 and 25 years.
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You get
Check whether your project address qualifies as an energy community under the Section 48E rules. Energy community status adds a 10 percent bonus to the commercial ITC, raising the base credit from 30 to 40 percent.
You enter
You get
How the tools work
Each tool pulls from verified data sources rather than national averages. Your state's actual electricity rate, installer costs in your market (EnergySage), and your utility's export policy all affect the result. The residential tools carry zero federal credit because none exists for 2026.
Monthly bill, state, utility name (optional). The tools do not require your name or contact information.
ElectricChoice rate data for your state, EnergySage installer cost averages for your market, and NREL sun-hour data for your region.
Payback range, system size, annual savings, and applicable incentive summary. Estimates are directional, not quotes.
A real assessment gives exact numbers for your roof, your rate schedule, and your local installer market. No estimate replaces that.
Start with the residential savings calculator -- no contact required.
Enter your monthly bill and state. Get a payback estimate and state incentive summary in under a minute.
Common questions
Direct answers. If the estimates raise more questions, a free assessment covers the specifics.
A free in-home or virtual assessment covers your specific roof, utility rate schedule, applicable state incentives, and local installer pricing. No pressure, no shared leads.
