SolarSizer

Privacy Policy

Last updated: September 2026

SolarSizer (solar-sizer.com) is a free calculator site. We designed it to collect as little information as possible.

Information we collect

The calculator runs entirely in your browser. The values you enter (loads, sun hours, battery type) are not transmitted to or stored on our servers — they exist only in your browser session. We do not require accounts and do not collect names, emails, or personal profiles through the calculator.

Advertising (Google AdSense)

This site is supported by advertising served by Google AdSense. Google and its partners may use cookies or similar technologies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising by visiting Google Ads Settings, or opt out of third-party vendor cookies at aboutads.info. Google’s use of advertising cookies is described in Google’s Advertising policies.

Affiliate links

Some pages may contain affiliate links, including to Amazon.com (Amazon Associates program). If you click an affiliate link and make a purchase, we may earn a small commission at no additional cost to you. Affiliate links never influence the sizing math, recommendations, or content of the calculators.

Analytics & cookies

We do not run our own analytics or set our own tracking cookies. Third parties (such as Google) may set cookies as described above; you can block or delete these through your browser settings.

Contact

Questions about this policy? Email [email protected].

Frequently asked questions

Is this calculator free?

Yes — free to use, no signup, no email required.

How accurate is the estimate?

Estimates follow industry-standard sizing rules and common safety margins. Always confirm with a licensed professional for final sizing.

Can I use this on mobile?

Yes — the page is fully responsive and works on phones, tablets, and desktop.

Where does the math come from?

Formulas are shown inline on the result panel so you can verify each step yourself.