Frequently asked questions

SunCetra Energy Monitor works fully — including inverter control — for 7 days after you first run it, with no license key needed. A banner in the sidebar counts down the days left, with a button to enter a key early if you've already bought one.

A one-off purchase, not a subscription — pay once and the license doesn't expire. You'll get a license key by email within a minute or two of paying, which unlocks the app for good.

If you give us your inverter's serial number at checkout (shown on your own dashboard), your key is locked to that exact inverter, so a copy of it won't work on anyone else's system. Leaving it blank issues an unlocked key instead.

No — keep the email with your key, and enter the same one again on the new install. If you've lost it, just reply to your original confirmation email and we'll resend it.

Energy Monitor has been tested against a single-phase Gen 1 GivEnergy inverter. It isn't currently tested against Gen 2, Gen 3, AIO, or three-phase systems — if you're not sure whether yours is supported, get in touch before buying.

If something isn't working and we can't sort it out between us, contact us within 14 days of your purchase and we'll discuss a refund. Just reply to your confirmation email.

No — SunCetra talks directly to your inverter over your own local network. Nothing about your system, your energy usage, or your account is sent to us or stored anywhere online.

Reply to any email from us, or use the email address on your purchase confirmation.