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Off Grid Authority is an independent, research-driven reference for DIY off-grid power. If you spotted a spec that looks off, a calculation that does not match your build, or a code requirement that has changed, tell us — we fix mistakes and keep these pages maintained, not abandoned.

LAST VERIFIED 2026-06-05

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How we handle corrections

We treat every page like a living reference. When you report an error, we cross-check the figure against the relevant manufacturer datasheet or the applicable NEC/ABYC code requirement before changing anything. If you are right, we update the page and refresh its "last verified" date. If the answer is more nuanced, we will tell you why the figure stands.

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About this reference. Off Grid Authority is an independent, research-driven reference for DIY off-grid power. Specifications are compiled and cross-checked against manufacturer datasheets and NEC/ABYC code requirements. Found an error? Tell us and we'll fix it — this page is maintained, not abandoned. Last verified: 2026-06-05