Disclaimer

Estimates Only, Not Professional Advice

Every calculator on PureEnergyTools produces an estimate for general planning purposes. Results depend on the accuracy of the numbers you enter and on simplifying assumptions — average sun hours, standard efficiency factors, typical regional cost indexes — that may not reflect your exact property, equipment, or local market. Nothing on this site is financial, engineering, electrical, tax, or legal advice. Always consult a licensed solar installer, electrician, accountant, or financial advisor before making a purchasing or investment decision based on any number shown here.

No Guarantee of Accuracy

We work to keep the underlying data — sun-hour figures, grid carbon intensity, currency exchange rates, regional cost indexes — current and correctly sourced, including using live data feeds where a reliable one exists (NASA POWER, live exchange rates, live grid carbon data). Where no reliable live source exists, we say so and use a disclosed, reasonable assumption instead. Even so, we make no warranty that any result is accurate, complete, or applicable to your specific situation. Actual costs, savings, system performance, and payback periods will vary — sometimes significantly — from what any calculator here shows.

No Installer or Manufacturer Affiliation

PureEnergyTools is an independent tools site. We are not a solar installer, equipment manufacturer, financing provider, or utility company, and no calculator result is an offer, quote, or guarantee from us or any third party. Some pages include affiliate links to installer or equipment partners, clearly disclosed on our Affiliate Disclosure page; these relationships never change what a calculator computes.

Limitation of Liability

PureEnergyTools and its operators are not liable for any decision made, cost incurred, or loss suffered based on results from any calculator on this site. Use these tools to sanity-check quotes and compare options — not as your sole basis for a purchase decision.

Questions

If something looks wrong or you're unsure how a number was calculated, each tool's page explains its formula and assumptions in the content below the calculator. Still unclear — reach out via our Contact page.