Straight answers about SunPlanner.

SunPlanner gives you a planning estimate and a range, not a promise. After you log three usable daily production readings, it can begin tuning future estimates to your setup. SunPlanner does not publish a single accuracy percentage because weather and individual systems vary.

SunPlanner needs a connection to get new weather data. If a refresh cannot finish, your last saved forecast may remain visible with its age so you know how old it is.

You can enter roof, ground, or portable panels with their wattage, tilt, and direction. SunPlanner uses those setup details with your location and weather data.

The Android app is $5 per month or $50 per year. Eligible new subscribers may receive a seven-day Google Play trial before the subscription begins.

SunPlanner is available now for Android. The iPhone version is not available yet, but you can join the iPhone notification list.

SunPlanner shows today and up to 16 days so you can compare near-term conditions and look ahead.

Calibration can begin after three usable production readings. Newer readings receive more weight, while unusual readings have limited influence so one strange day does not take over the estimate.

No. Battery capacity affects how much energy you can store, but it does not change how much solar your panels may produce. SunPlanner keeps those ideas separate.

Lonnie built SunPlanner while living and traveling in an off-grid bus. He wanted a clearer way to plan real daily energy use around changing sun and weather instead of guessing from one perfect-day number.