Terms
Last updated 2026-11-03
By using BillToSolar you agree to these terms. If you do not agree, do not use the site.
A planning estimate, not a quote
Every result is a planning estimate built from state averages and the numbers you enter. It is not a quote, a design or an engineering calculation. Real systems depend on your roof, shading, equipment, utility rules and local codes.
Not electrical advice
Nothing here is electrical, engineering, legal, tax or financial advice. Permits, interconnection approval and a licensed electrician are required for grid-tied systems. Work on electrical systems can cause injury, fire or death. Have qualified people do it.
No warranty
The site and its results are provided as is, without warranty of any kind, express or implied, including accuracy, fitness for a particular purpose or availability. Prices, incentives and rules change; we state a source and date where we show them, and you should check current figures.
Limit of liability
To the extent the law allows, BillToSolar is not liable for losses arising from your use of the site or reliance on its results, including purchases you make from retailers we link to.
Links and purchases
Some links are affiliate links, as explained in the affiliate disclosure. Purchases are between you and the seller. We do not sell or ship parts.
Paid full plan
The full plan is a one-time $9 USD purchase processed by Stripe. It is a planning document and carries the same estimate disclaimers as the free tool. For any problem with a purchase, contact support@billtosolar.com.
Changes and contact
We may update these terms and will change the date above when we do. Questions: support@billtosolar.com.