About this site
What this site explains, what it refuses to publish, and what the domain used to be.
A reference site about how photovoltaic systems work: the physics at the cell, the electrical design above it, the relationship with the grid, and what changes over twenty years on a roof.
Who it is for
Anyone trying to understand a system rather than buy one — a homeowner reading a proposal, a building manager weighing a commercial array, someone designing an off-grid setup, or a person whose production numbers stopped looking right.
What it does not publish
No prices or cost estimates. Solar pricing depends on the roof, the utility, the incentive regime and the month, and a figure published once is wrong soon after. Where cost drives a decision the page explains the mechanism and points at where a current number comes from.
No installer referrals, no quote forms and no advertising. Lead generation is what funds most solar content and it is visible in what those pages emphasise. Removing the incentive is simpler than disclosing it.
No product recommendations. Panels and inverters are compared by property — efficiency, temperature coefficient, topology — not by brand.
On rules that vary
Net metering, interconnection and export compensation are set by state and by utility, and they change. Pages describe how the mechanism works and say plainly that the specific terms have to be checked locally, rather than presenting one jurisdiction's rule as though it were general.
The previous site
This domain hosted a solar news blog from around 2006 to the late 2010s, mostly aggregated corporate announcements. Nothing from it is reproduced and none of its addresses redirect here — a 2009 press release has no modern equivalent to point at, and sending those links somewhere unrelated would be worse than letting them expire.
Safety
Photovoltaic arrays produce dangerous DC voltages in daylight and cannot be switched off at the panel. Roof and mains work is licensed in most jurisdictions for good reason. These pages explain design and diagnosis; they are not instructions to work on a live system.