Solar Wiki
Smart Meters & Export
SMETS1 vs SMETS2, export MPAN, and how payments actually work.
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Our installers write these guides themselves, so this one is not ready. If you have a question about smart meters & export, ask us and we will answer it — and the answer usually becomes the article.
Other sections of the wiki
- Getting StartedNew to solar? Start here for the basics.
- Solar PanelsPanel types, sizing, efficiency, and what actually matters.
- InvertersString vs micro, hybrid options, and common failure points.
- BatteriesHome battery storage, chemistries, sizing, and real-world payback.
- UK Rules & DNOsG98/G99, export limits, planning permission, and DNO applications.
- Tariffs & FiT / SEGFeed-in Tariff legacy, SEG rates, Octopus Flux, Agile, and more.
- TroubleshootingCommon problems, fault codes, and when to call an installer.
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