Frequently Asked Questions

Is my data safe when using your calculators? ▾
Yes. All calculations run entirely in your browser. We never see, store, or transmit your data. No servers, no tracking, no cookies.
How accurate are the savings estimates? ▾
Our estimates are based on industry-standard formulas and publicly available utility rate data. Actual savings will vary based on your specific home, usage patterns, and local rates. We recommend using our tools as a starting point, then verifying with your actual bills.
Do you sell my email address? ▾
No. We do not collect email addresses. We do not have a mailing list. We do not sell data because we do not collect it.
Are the tax credit amounts up to date? ▾
We update tax credit information annually based on IRS publications. However, tax laws change. Always verify current credits with a tax professional or the IRS website before filing.
Can I use these tools on my phone? ▾
Yes. All tools are fully responsive and work on mobile devices, tablets, and desktops. No app download required.