Solar Calculator Settings
Adjust the rates and modifiers used to calculate customer savings. The preview on the right updates instantly. This page is a private tool for you - it does not go on your website.
National fallback rate
Used when a ZIP code doesn't match a region below.
Regional rates (by ZIP first digit)
Rough regional lookup - not precise per-utility, but keeps estimates in the right ballpark by area.
| ZIP starts with | Region | Rate ($/kWh) | Sun hrs/day |
|---|
Financial assumptions
Usage modifiers
Sun exposure multipliers
How much bigger the system needs to be for shade.
System size floors (kW)
Minimum recommended system size by home size, plus an overall cap.
Sharing this with someone else
This page's address bar always reflects the settings currently shown below - as you edit a number, the link updates automatically. Click Copy Shareable Link and send it to anyone who needs to see or hand off these exact settings (e.g. a client sending their edits back to you). Opening that link loads those exact values. Nothing is stored on a server - the settings live entirely in the link itself and in this browser's local storage.
Snippet to paste into Squarespace
Paste this into its own Code Block, placed directly above the main calculator Code Block on the same page. It only needs to be updated when you change a number here.
See How Much You Could Save With Solar
Answer a few quick questions for a personalized 25-year savings estimate.