Solar Powered Project is an independent, reader-supported publication about practical independent power: solar systems, batteries, wiring, costs, and off-grid builds.
Why a publication byline
We publish under the publication name rather than individual bylines because the guides here are built, checked, and maintained as a shared process — calculations reviewed against manufacturer documentation and standards, cost ranges checked against public data, and corrections logged publicly — rather than as the personal opinion of one writer. We do not present a named “expert” reviewer unless that person’s review actually happened. That is a deliberate honesty choice: an anonymous-byline site pretending to be a named-expert site would be worse than neither.
What we actually do
- Build answers from the math out. Sizing, runtime, payback, and wiring guides show their arithmetic and state their assumptions. If a number matters, you can check it.
- Read primary sources. Manufacturer spec sheets, the NEC where wiring is involved, government data (EIA, IRS, state program pages) for costs and incentives. Where we state a range, we say it’s a range.
- Log our corrections. Mistakes get fixed and recorded on the corrections page — including a September 2026 pass that removed stale federal tax-credit claims from several cost guides.
- Update in place. Time-sensitive pages say their scope; policy changes (like the December 31, 2025 expiry of the federal residential clean-energy credit) get applied across the site, not just on new pages.
What we do not claim
- We do not run a test lab, and we do not claim hands-on testing we have not done. Where a page mentions specific equipment, it is because the specs and the math point there — not because a bench test told us so. When we do document a real build or measurement in the Project Lab, the measurements and their limits are stated in that article.
- We do not accept payment for coverage, and brands do not see or approve anything before publication.
- We are not electricians, and nothing here is a substitute for a licensed professional for code work. Safety-critical steps say so.
How the site is funded
Reader-supported: we earn affiliate commissions (mainly Amazon Associates) when you buy through links, at no extra cost to you. See the affiliate disclosure and how we pick what we link.
Contact
Questions, factual corrections, and broken-link reports go through the contact page.