Free for homeowners, always
The solar calculator costs nothing and asks for nothing. Paid plans are for installers and developers who want the same engine on their own site or in their own product.
Solar calculator
For anyone deciding whether to go solar.
- ✓ Generation, savings, payback and 25-year profit
- ✓ Your country's prices and incentives
- ✓ Battery and scenario comparison
- ✓ No sign-up, no email, no sales calls
For installers and agencies
Put the calculator on your own website in your brand. Visitors get honest numbers, and the ones who want a quote send their details straight to you. Cancel anytime from your dashboard.
Pro
InstallersFor one solar business: the calculator on your own site, in your brand, with quote requests sent to you.
- White-label widget (your brand)
- Quote requests emailed to you and listed in your dashboard
- Matches your site's colours automatically
- Precise yield engine and API access
- Multi-site / multi-tenant
Agency
ScaleFor agencies and platforms running the calculator on many client sites at once.
- Everything in Pro
- Multi-site keys and tenancy
- Priority support & SLA
- Higher rate limits
- Volume pricing on request
See the widget working before you decide.
For developers: the API
The yield and economics engine behind the calculator, as a REST API. Start on a free key; Pro and Agency include the API with the precise yield engine and higher limits.
Free
DevelopersAn API key to build and test with: real yield and economics, and the widget with our branding.
- Yield and economics API: NPV, IRR, payback
- Embeddable widget (with our branding)
- Generous dev rate limits
- Quote requests from the widget
- White-label / remove branding
All plans include resale-OK data licensing. Prices in USD. Log in