Tools / 03

Solar Clipping
Visualiser

When panels make more than the inverter can handle, the top of the day gets cut off. See how much, on a clear day, for your system.

Clear-sky model · last updated 12 Oct 2026
Your system

Roof faces

6.02 kWp

Add each direction your panels face. Not sure of the kWp? Enter how many panels and their wattage, it’s on the panel label or your quote.

5.0 kW
1 kW15 kW
June
JanDec

Roof pitch

The angle of the panels from flat.

Where in the UK?

Further north, the sun sits lower.

Clipped on a clear June day
0.5kWh

Panels’ peak
5.5kW
DC/AC ratio
1.20
At the limit
2.6hrs
Clear-day output · kWMadeClippedLimit
Assumptions
Sky
Clear, all day
Date
15 June
Panel losses
10% (heat, wiring, dirt)
Inverter efficiency
97%
Battery
Full, or none
How this is calculated
  1. 1The sun’s position every 5 minutes for the 15th of the month, at your latitude.
  2. 2Clear-sky sunlight on each roof face, times that face’s kWp, then panel output after losses.
  3. 3Anything above the inverter’s AC rating is clipped. Times are clock time, BST in summer.
Clipping, in one line each
  • DC/AC ratioPanel kWp ÷ inverter kW. Around 1.1 to 1.3 is common, and a little clipping is normal.
  • Hybrid batteriesA hybrid inverter can send some of the excess into the battery before it’s lost.
  • Real days spikeLevi’s 12.25 kWp hit 12.2 kW on 16 Sep, above any clear-sky curve. Bright broken cloud does that.
  • Export limitsA G99 export limit caps what goes to the grid, not what the panels make. It isn’t clipping.
See Levi’s system →