Residential Solar ROI API
Residential Solar ROI API — Physics-Based Solar Analysis for Developers. ACCESS OPTIONS API access and platform access are separate. You do not need to use the web tool to use the API. Free plan — API access only. No tool required. Pro plan — Full API access. Web tool included as a perk at no extra cost. Ultra plan — Full API access. Web tool included. White label rights included. Requires…
2 subscribers
10 endpoints
The in-depth APIMemo review for this API hasn't been published yet —
the data below comes straight from the public marketplace listing.
Residential Solar ROI API endpoints
| Method | Endpoint | Description |
|---|---|---|
| Info | ||
| GET |
Health Check /health |
Check API status and confirm the server is running |
| GET |
API Info / |
Returns API version, tagline, and directory of all available endpoints |
| GET |
Pricing Plans /pricing |
Returns full pricing plan details, rate limits, and bundle options |
| Calculation | ||
| POST |
Quick Estimate /quick-estimate |
Send a ZIP code and monthly electricity bill. Returns recommended system size, annual production, year-1 savings, payback period, and incentives. Free plan. |
| POST |
Full Calculate /calculate |
Full PVWatts V8 calculation with NASA POWER satellite irradiance and 25-year NPV/IRR/LCOE cashflow model. Pro plan required. |
| Reference | ||
| GET |
Module Types /reference/module-types |
Supported PV panel technologies with temperature coefficients and Sandia model parameters. Source: King et al. (2004) SAND2004-3535 |
| GET |
NEM Policy by State /reference/nem-policy/{state} |
Net energy metering policy for any US state. Pass 2-letter state code e.g. CA, NY, TX, HI. Covers all 50 states including NEM 3.0 for California. |
| GET |
All States NEM Overview /reference/states |
NEM policy summary for all 50 US states and DC. Use to compare net metering environments or build a state-selector in your app. |
| GET |
List Utilities /reference/utilities |
Returns all 60+ supported US utilities with IDs and states. Source: EIA Form 861 (2023) |
| GET |
Incentives by State /reference/incentives/{state} |
Federal ITC plus state tax credits, utility rebates, SREC programmes, and tax exemptions for any US state. Every incentive cited to its statutory source. |
Residential Solar ROI API pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | — |
|
| PRO | $29.99 / month | 60 / minute |
|
| ULTRA Recommended | $149 / month | 300 / minute |
|
