Emergency Generator Calculator
Easily calculate the right backup power and solar setup for your home, RV, or off‑grid use. Find out how many solar panels and which size generator you need to power fridges, heaters, lights, and devices.
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Backup Power & Solar Calculator FAQ
How does this Emergency Generator Calculator work?
It estimates your total power needs based on the appliances, devices, and lights you select. It then recommends the most suitable portable power station and number of solar panels to meet your desired runtime.
Which power stations are supported?
The calculator uses popular models such as the Jackery Explorer 500, 1500, 2000+, and 5000+ as examples because they are widely considered the gold standard. However, the same calculations apply to similar products from other brands.
How much does it cost to use?
Free to use.
Does the calculation include solar charging?
Yes. It factors in daily sun hours and panel wattage to estimate extra runtime from solar power.
Can I use this for RVs or camping setups?
Absolutely. This tool is ideal for RVs, camping, off‑grid cabins, and emergency home backup situations.
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To support our work, we may earn a commission when you buy through links on our site. As an Amazon Associate, I earn from qualifying purchases.This page may contain affiliate links, which means if you click through and make a purchase, we may receive a commission at no additional cost to you. This helps support our research and editorial team.