Privacy policy
Last update: November 2, 2026.
Data that you type
The calculator works in your browser. The kWh, the amounts and the other values that you type stay on your device. We do not send them to a server. We do not keep them.
ZIP code finder
When you search a ZIP code, your browser downloads a list of utilities for the first three digits of the ZIP code. Our server can record this request in its logs (see "Server logs"). The full ZIP code stays on your device.
Usage files
When you select a usage file (Green Button XML or CSV), your browser reads it. We do not receive the file.
PDF, print and copy
Your browser makes the PDF of a result. The PDF contains the values that you typed. We do not receive it. Print and copy also work only in your browser. The CSV file of the bill comparison is a public file on our server.
Analytics and cookies
We use Google Analytics to count visits and to see which pages people use, so that we can make the site better. Google Analytics sets cookies and receives data about your visit, for example the pages that you open, the time, your type of device and browser, and an approximate location from your IP address. It does not receive the values that you type in the calculators. Google processes this data under its own privacy policy: Google Privacy Policy. To stop Google Analytics, you can block cookies in your browser or use the Google Analytics opt-out browser add-on.
This website does not show advertisements from other companies.
Saved bills (local storage)
If you use "Save this bill" or My bills, your browser keeps the saved bills in its local storage on your device. We do not receive them. You can delete them on the My bills page or by clearing the site data in your browser.
Server logs
Our hosting company can record the usual data of a web request, for example the IP address, the date and the page. The hosting company uses these records for security and operation.
Links to other websites
Our pages link to utilities, state commissions and ProSolarCalc (a website of Sri Murugan Systems). These websites have their own privacy policies.
If you send an email to us, we use your email address only to reply to you.
Changes to this policy
If we change this policy, we will show the new date at the top of this page.