Independent home energy research

About PowerGrid

PowerGrid is an independent publication. Our goal is to help readers separate practical electrical concepts from promotional claims.

Safety note: Electrical work can cause shock, fire, equipment damage, or utility hazards. Use qualified professional help for household wiring, transfer equipment, and any grid connected work.

How we research

We use public product materials, seller terms, retailer information, safety guidance, and established electrical concepts. Seller claims are labeled as claims when independent verification is unavailable.

What we do not claim

We do not pretend to have personally built or tested a product unless that testing actually occurred. We do not invent customer experiences, performance figures, or savings results.

Affiliate disclosure

Some links on this site are affiliate links. If you purchase through one of those links, we may earn a commission. This does not change the price you pay. Our editorial approach is to identify material limitations and uncertainties even when a page contains an affiliate link.