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.

23 September 2026

Right nowor a period:

The tilted frame seen from the lawn, photographed on 17 September 2026. Each panel carries what it produced over 23 September 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

Energy produced by each optimised panel over the period, and how long each one was measured.
Panel	Technology	Peak power (Wp)	Energy (Wh)	Wh per kWp	Measured for
M1 Panel 1, monocrystalline	Monocrystalline	280	51	182	6.8 h
M2 Panel 2, monocrystalline	Monocrystalline	280	55	197	6.8 h
M3 Panel 3, monocrystalline	Monocrystalline	280	53	187	6.8 h
M4 Panel 4, monocrystalline	Monocrystalline	280	50	180	6.8 h
M5 Panel 5, monocrystalline	Monocrystalline	280	52	185	6.8 h
M6 Panel 6, monocrystalline	Monocrystalline	280	52	185	6.8 h
P1 Panel 1, polycrystalline	Polycrystalline	275	52	187	6.8 h
P2 Panel 2, polycrystalline	Polycrystalline	275	55	201	6.8 h
P3 Panel 3, polycrystalline	Polycrystalline	275	54	195	6.8 h
P4 Panel 4, polycrystalline	Polycrystalline	275	49	178	6.8 h
P5 Panel 5, polycrystalline	Polycrystalline	275	49	179	6.8 h
P6 Panel 6, polycrystalline	Polycrystalline	275	54	197	6.8 h
Vertical array 12 modules, 6 frames	Thin film CIGS	120 each	Not measured individually: these modules have no optimiser. Their total is on the live page, as array 3.

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, 197 Wh/kWp
Weakest: M4, 180 Wh/kWp
Difference (calculated): 9 % less

6 of the 6 panels of this row answered. The weakest, M4, produces 9 percent less than the strongest, M2 (180 Wh/kWp against 197 Wh/kWp). Over a period, a difference above about 5 percent deserves a look at that panel.

Lower row, polycrystalline

Strongest: P2, 201 Wh/kWp
Weakest: P4, 178 Wh/kWp
Difference (calculated): 11 % less

6 of the 6 panels of this row answered. The weakest, P4, produces 11 percent less than the strongest, P2 (178 Wh/kWp against 201 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.