Got a solar question? Modules, inverters, storage, sizing, winter yield. From professionals, for professionals.
The full post, with its chart or video, is on LinkedIn.
Blog · PVDIS
Got a solar question? Modules, inverters, storage, sizing, winter yield. From professionals, for professionals.
The full post, with its chart or video, is on LinkedIn.


The label says 440 W. The July roof says about 389 W. Not broken, just hot: at −0.29 %/°C, cells at 65 °C lose around 11.6 %.

The datasheet says +25 %. Measured in the field: +8.9 %. A real gain, just not 25 %.

Capacity shows what is installed. Generation shows what it delivers. World average 2024: 263 kWh per person, up from 27 in 2014.