Solar forecast

Open it from the Forecast button in the bottom bar.

What you see

• Today's curve with a shaded band around it. The band is the uncertainty: narrow means confident, wide means the weather could go either way.
• The next few days as a strip you can tap through.
• How accurate we have been — yesterday's forecast against what actually happened.
• Unrealised generation — power your panels could have made but did not, usually because the battery was full and there was nowhere to put it.
• Battery outlook — hourly bars showing where your charge is heading.

Turn the phone sideways for a full-screen strip you can pan across several days.

How it works

Svitgrid combines the weather forecast for your exact location with what it knows about your system: how many kilowatts of panels, which way they face, their tilt, and how they have actually behaved on similar days.

That last part matters most. The forecast learns from your roof. A system with a tree shading it at 4pm will, after a couple of weeks, have that dip built into its prediction.

Making it accurate

Check Settings → Inverter settings → Solar configuration:

• kWp — total panel power. On the panel label, multiply the watts by how many you have.
• Azimuth — the compass direction the panels face. South is 180°. There is a compass tool: stand facing the same way as the panels and read it off.
• Tilt — the angle from flat. A typical pitched roof is 30–35°.

Set each string separately if they face different ways.