Section · Solar
Panels are mostly a commodity now. What matters is everything around them: inverter choice, roof geometry, the tariff you are on, and the gap between modelled and measured output.
In this section
Bifacial, half-cut, n-type. What the spec sheet really tells you and which numbers matter.
String, hybrid or microinverters. A decision tree that fits on one page.
Roof penetrations, ballasted systems and why the survey decides everything.
The boring component that fails first. A short and slightly tedious essay.
Why MCS estimates are so often wrong, and which way they tend to err.
Self-consumption: getting from 25% to 55% without a battery.
Tools in this section
Recent essays
Long read · 9 min
A 2.8 kWp system was sensible in 2019. It is not now.
Field note · 6 min
Where the prices diverge and what each is implicitly betting on.
Reader letter · 5 min
A reader sent in their generation data. The story is interesting.