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Battery21%

Measured

Panel by panel

Twelve of the 24 panels have their own optimiser, so each one is measured on its own. Here they are on a photo of the frame, right now or over any period you choose.

2 November 2026

Right nowor a period:
Panel 1, monocrystalline. 220 Wh over 2 November 2026, 0.78 kWh per kWp, measured for 4.3 hours.M1220 WhPanel 2, monocrystalline. 223 Wh over 2 November 2026, 0.80 kWh per kWp, measured for 4.3 hours.M2223 WhPanel 3, monocrystalline. 214 Wh over 2 November 2026, 0.76 kWh per kWp, measured for 4.3 hours.M3214 WhPanel 4, monocrystalline. 205 Wh over 2 November 2026, 0.73 kWh per kWp, measured for 4.3 hours.M4205 WhPanel 5, monocrystalline. 180 Wh over 2 November 2026, 0.64 kWh per kWp, measured for 4.3 hours.M5180 WhPanel 6, monocrystalline. 166 Wh over 2 November 2026, 0.59 kWh per kWp, measured for 4.3 hours.M6166 WhPanel 1, polycrystalline. 373 Wh over 2 November 2026, 1.36 kWh per kWp, measured for 4.3 hours.P1373 WhPanel 2, polycrystalline. 352 Wh over 2 November 2026, 1.28 kWh per kWp, measured for 4.3 hours.P2352 WhPanel 3, polycrystalline. 330 Wh over 2 November 2026, 1.20 kWh per kWp, measured for 4.3 hours.P3330 WhPanel 4, polycrystalline. 303 Wh over 2 November 2026, 1.10 kWh per kWp, measured for 4.3 hours.P4303 WhPanel 5, polycrystalline. 294 Wh over 2 November 2026, 1.07 kWh per kWp, measured for 4.3 hours.P5294 WhPanel 6, polycrystalline. 285 Wh over 2 November 2026, 1.04 kWh per kWp, measured for 4.3 hours.P6285 Wh
The tilted frame seen from the lawn, photographed on 17 September 2026. Each panel carries what it produced over 2 November 2026.
Tint: energy per kilowatt peak, compared with the best of the twelve over this period.under 80 %80 to 90 %90 to 95 %95 to 99 %99 % and over

How even is each row

How much less the weakest panel of a row produces than the strongest, in percent of the strongest. This is a calculation made from the twelve measurements above, not a measurement of its own.

The six panels of a row see the same sky, so they should produce about the same share of their peak power. One that falls behind points to shade, dirt, snow or a fault. Over a period, a passing cloud no longer matters.

Upper row, monocrystalline

Strongest
M2, 798 Wh/kWp
Weakest
M6, 594 Wh/kWp
Difference (calculated)
26 % less

6 of the 6 panels of this row answered. The weakest, M6, produces 26 percent less than the strongest, M2 (594 Wh/kWp against 798 Wh/kWp). Over a period, a difference above about 5 percent deserves a look at that panel.

Lower row, polycrystalline

Strongest
P1, 1 356 Wh/kWp
Weakest
P6, 1 038 Wh/kWp
Difference (calculated)
23 % less

6 of the 6 panels of this row answered. The weakest, P6, produces 23 percent less than the strongest, P1 (1 038 Wh/kWp against 1 356 Wh/kWp). Over a period, a difference above about 5 percent deserves a look at that panel.

How to read these numbers

  • Direct current, before the inverter. The inverter loses a few percent, so the sum of these panels is more than the lab delivers. The real production is on the live page.
  • The vertical array is not shown. Its twelve modules have no optimiser, so they are only measured together, as array 3.
  • Read through Tigo. The optimisers report to the Tigo cloud and this site reads the values from there.

Each panel's history can be charted and downloaded on the data page. The three arrays are compared on key figures and records.