OnSun: Solar Forecast & Save

Solar peaks at midday, but life happens at either end. OnSun forecasts your solar a week ahead and tells you when to run each appliance, so you use more of your power.

Want your solar to pay for itself faster? Want to lower your energy bills? It comes down to timing - using your power while the sun's up, not buying it back after dark. OnSun forecasts your solar seven days ahead and tells you the best time to put the washing on, charge the car or run the dishwasher, so you use more of your own power and buy less.

No solar inverter integration. No extra hardware. OnSun works from your system's location, size and the local weather - nothing to install except the app.

The problem is the same everywhere: solar peaks in the middle of the day, life happens at either end of it, and whatever you don't use gets sold off cheap and bought back expensive.

Most of us mean to use more of our solar power and just… don't. Your inverter app won't fix that - it only shows what already happened, when the chance to do anything is gone. OnSun looks ahead instead. It plans your week around the sun, shows the sunniest days and reminds you when to switch each appliance on.

HOW THE SOLAR FORECAST WORKS The forecast is what makes OnSun so powerful, so here's how it's built. Looking seven days ahead, OnSun starts with professional weather forecast data, then models how much of that sunlight your panels will actually capture to feed your house, based on their location and size. It's the same modelling used for large commercial solar systems - now in your pocket.

HOW THE SCHEDULING WORKS Every appliance draws power differently, a dishwasher runs in short bursts, a car charger pulls for hours, heating and cooling are different again. OnSun matches each appliance's power profile against your solar forecast, finds the window with the most sunshine, and tells you when to start. Set it once, and OnSun reminds you when it's time.

ONSUN FREE vs PRO Free: • 3-day forecast • 2 appliances Pro: • Full 7-day forecast • Unlimited appliances • More frequent forecast updates • Long-term savings and self-consumption insights, so you can see how your habits change over time

You paid for the solar system. Download OnSun free and put your solar to work.

Terms of Use: https://onsun.app/terms-of-service.html

Review: "I'm terrible at remembering to make the most of my solar and end up giving it all away to the grid, but this sends me reminders and plans the next few days for me. The notifications are great, I actually get up and put the washer on! Even started meal prepping with the oven at peak solar time. Can see this saving me from wasting power real quick." - Andytar