Built on a bus, used off the grid

Know what your panels will actually make.

SunPlanner forecasts your solar, up to 16 days out, and tunes itself to your real setup, so you can plan your power instead of guessing at it.

Get SunPlanner See it in action

Built by someone who actually lives this life. Calibrated for real rigs on real roof space, not a lab bench.

SunPlanner forecast screen showing daily solar production estimates
This week's outlook
Good
Sunny stretch
ahead, rig's way
The three things that matter

A forecast that's actually about your rig.

01

Forecast.
Your real number, not a guess.

Panel angle, orientation, shading, battery bank: SunPlanner runs the math for your specific setup, not a national average pulled off a weather icon.

02

Find.
Plan ahead, know before you park.

See your production up to 16 days out so you can pick a site, time a laundromat run, or skip the generator, knowing the fridge stays cold.

03

Calibrate.
Built by someone who lives it.

Log a real reading and the forecast tightens around your rig. The longer you run it, the sharper it gets, no lab conditions required.

The app in action

This is what your dashboard actually looks like.

Real screens, real forecast data, dark enough to read at 6 a.m. before the sun's even up over the ridge.

16 day solar production outlook screen
16-day outlook→
SunPlanner dashboard home screen in the gold theme
Today's dashboard→
Calibration screen showing raw weather model output next to the calibrated number for this rig
Calibration→
0
Days outHow far the forecast reaches
0
Hours of weather data checkedPer forecast run, not a single icon
0
RigYours, and only yours
Under the hood

The details that make it hold up outside.

Wind awareness

Gusts change what a panel can take before you do. SunPlanner watches wind speed at your site so surprises stay outside the rig.

Real weather data

Pulled from real forecast models and checked against cloud cover and haze, not just a sunny-cloudy icon guessing on your behalf.

Calibration that learns

Every reading you log makes tomorrow's number sharper. It's your rig it's learning, not a generic panel spec sheet.

Smart notifications

A heads-up before a low-production stretch, timed so you can plan the day around it instead of finding out at dusk.

If you make your own power, this is for you

Why this exists

Built on a school bus, not in a boardroom.

I live full-time in a bus, off-grid. I actually bought a solar app once, then had to switch to a backup iPhone for a while, and my purchase wouldn't come with me. I went looking for another worth paying for and came up empty, so I built my own. It was the first web app I ever finished, Skoolie Solar. I used it a good while before I noticed something: the numbers, mine and everyone else's, just weren't that accurate. So I dug in, and found the reason none of them nail it: they don't calibrate to your own real production. So I built the one that does. That's SunPlanner.

Lonnie, builder and full-time bus dweller

Placeholder photo: Lonnie's bus, exterior
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Placeholder photo: solar panels going up on the roof
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Placeholder photo: first night fully off-grid, lights on
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Trust, the plain way

Nothing here is bought or invented.

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Not yet rated

Real Play Store rating goes here once Internal Testing produces one. No invented number until it's real.

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A real quote from an Internal Testing user lands here, word for word. Nothing invented in the meantime.

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Space held for the next real review, once it comes in. Not filled with a stand-in quote.

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This slot stays empty of borrowed praise until a real off-gridder says it themselves.

We don't sell your data, and we don't track your location behind your back. Your email is only ever used to let you know when we have news for you.

Honest pricing

Priced like a tool, not a subscription trap.

Monthly
Try it properly
$5/mo

7-day free trial, cancel anytime. Good for a season on the road before you decide.

Yearly, discounted
Commit to the season
Discounted/mo, billed yearly

A lower rate for full-timers who already know they're keeping it. Still starts with the 7-day trial. Exact rate is shown in the app.

Lifetime
Pay once, own it
Pay once, forever

A single payment, no renewals. For the rig that's not going anywhere. Exact price is shown in the app.

All plans start with a 7-day free trial. Subscriptions are set up in the app, not on this site.

SunPlanner forecasts your rig's solar, up to 16 days out.

Get SunPlanner