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Have questions about OffGridCalc? We'd love to hear from you!
🕐 Response Time
We typically respond within 24–48 hours on business days.
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Frequently Asked Questions
Is OffGridCalc really free?
Yes, completely free. No registration, no subscription, no hidden fees — ever.
Does the calculator store my data?
No. All calculations run locally in your browser. We never transmit or store your calculator inputs on our servers.
How accurate are the results?
We use real solar irradiance data from PVGIS (EU Science Hub) and industry-standard sizing algorithms. Results are reliable estimates — always consult a qualified solar installer before purchasing equipment.
Can I use OffGridCalc offline?
Yes. Once the page loads, the calculator works fully offline. Perfect for remote site visits.