# \#green-tariffs

**URL:** https://community.openenergymonitor.org/tag/green-tariffs/677.md

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## [Matched Clean Power Index - How Green is Your Tariff?](https://community.openenergymonitor.org/t/matched-clean-power-index-how-green-is-your-tariff/29297)

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**Author:** [@Joe\_Kwiatkowski](https://community.openenergymonitor.org/u/Joe_Kwiatkowski)\
**Replies:** 7\
**Last updated:** [5 November 2025 12:30 UTC](https://community.openenergymonitor.org/t/matched-clean-power-index-how-green-is-your-tariff/29297 "2025-11-05T12:30:53Z")

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All, I’m a first-time poster, but long-time reader. While digging into public data I found a way to track the renewable power that suppliers buy on our behalf - half-hour by half-hour. Using data from Ofgem, Elexon, an…