policy
Treasury's new ITC guidance narrows the domestic-content bonus — here's who still qualifies
Updated Treasury rules tighten the steel-and-iron threshold for the 10% bonus credit, effective for projects placed in service next year.
Posts
reviews
Enphase IQ8M microinverter review: the grid-independent feature actually works
Sunlight backup power during a daytime outage, without a battery, tested through two real blackouts.
guides
Net metering by state, 2026: where the math still works
A handful of states have moved to net billing at avoided-cost rates. Here's how to tell which rules apply to your utility.
reports
Community solar subscriptions grew 14% this year — but cancellations are rising too
New subscriber growth is real, but so is a churn problem tied to unclear savings guarantees.
guides
How to size a home battery without over-buying capacity you'll never use
Installers often quote by panel count, not by your actual overnight load. Here's the back-of-envelope method.
reports
Panel degradation rates are quietly improving — warranties haven't caught up
Field data shows top-tier panels degrading slower than their own warranty documents assume.