Widgets

Put a solar payback calculator on your site

Free for any installer, co-op, energy blog or local newsroom. Readers pick a state and a system size and see how many years the system takes to pay for itself, priced under the 2026 rules with no federal credit. The figures update with each data refresh, on their own.

Build your snippet

Pick a state, a size and a theme

Start on a stateSystem size

Theme

LightDarkFollow the reader's device

Snippet

Plain iframeAuto-height script

Paste this into your page

<iframe src="https://solarpanelcosts.com/embed/solar-payback" title="Solar payback calculator by SolarPanelCosts.com" width="100%" height="520" style="max-width:600px;border:0" loading="lazy"></iframe>
<p style="font:13px/1.4 system-ui,sans-serif;margin:6px 0 0">Solar cost data from <a href="https://solarpanelcosts.com/">SolarPanelCosts.com</a></p>

Works on any site that allows iframes.

Preview width

Solar cost data from SolarPanelCosts.com

The fine print

What you are embedding

Free to use. The widget carries a small "Solar cost data from SolarPanelCosts.com" credit link; please keep it, and keep the one-line credit under the iframe too.
No cookies, no analytics and no ads inside the widget, and nothing about your readers is sent anywhere.
Data: median installed prices from LBNL (2024-2025), production modelled with PVGIS, residential electricity prices from EIA (July 2026). States without enough local installs use the US median and say so. The full model is on the methodology page.
Options: add ?st=TX to start on a state, ?size=10 for the system size in kW, and ?theme=dark or ?theme=auto for the theme.
The widget works from 300 to 600 pixels wide. Questions: contact us.