4 ms·
I don't know for other countries, but in France Enedis (in charge of the distribution network) indicated that the network can support no more than 6% of H2. IIR
by wazoox 6y ago
I don't know for other countries, but in France Enedis (in charge of the distribution network) indicated that the network can support no more than 6% of H2. IIRC higher proportions of H2 would actively deteriorate tubes and stuff (I don't know the details, but apparently it can even react with certain materials and make them brittle for instance).
- rjsw 6y agoIt reacts with fairly common materials [1], steel is the main one. [1] https://en.wikipedia.org/wiki/Hydrogen_embrittlement https://en.wikipedia.org/wiki/Hydrogen_embrittlement
- usrusr 6y agoThat's roughly the number I was talking about. Subtract current H2 percentage in the system and multiply the result with network throughout (plus storage headroom). That's quite a lot slack to pick up before running out of storage for regenerative H2 production. Sure, those 6% are a local maximum which further limits how much a hypothetical production point could push into the network, but that'd be more of a tactical problem (where to deploy the tech) than a universal limitation. And a solvable one, because the inputs to the conversion are quite transferable.
- hokkos 6y agoEnedis is in charge of electricity distribution, GRDF is in charge of fossil gas distribution, and also one of the partners of the grhyd experiment to inject H2 in fossil gas networks, and they went to 20% ! http://grhyd.fr/ http://grhyd.fr/