Thank you Lukas for answers Le sam. 14 nov. 2020 à 17:56, Lukas Richert <[email protected]> a écrit :
> Hi François, > > the combination of electricity:grid=yes with either electricity:origin=* > or electricity:grid:origin=* would point to the origin being only about > financial flows as advertised on-the-ground. > Agree with that. electricity:grid:origin isn't part of the proposal, will we have to approve it? > For the purpose of filtering out amenities, e.g. charging stations, that > only use 'green' electricity it is still useful to tag electricity:origin=* > or electricity:generator:origin=* in combination with > electricity:generator=yes. > Don't agree with that :) This filtering won't be accurate at all and will encourage people to think claimed origin through a power grid is equivalent to certainty of locally obtained electricity (which isn't) I'm clearly against any association between a generator device and 'origin' word. electricity:origin should relate to grid/market only and remain a claim with no physical reality. > Alternatively, there would need to be a tagged relation to the specific > generator and the end users it supplies which would be considerably harder > to query and many OSM editers seem to find relations confusing. Therefore, > I think the slight bit of redundancy is useful to explicitly tag this on > the amenity. > Understood, that would enable to check consistency as well. > Furthermore, the word 'origin' is used, not only to avoid two tags with > very similar meanings that can be easily distinguished by combination with > the infrastructure tag > I respectfully disagree, they don't have a similar meaning in many situations. Merging both in a single key will only be accurate when the claim is equivalent to local production which isn't necessary: you buy solar energy and backup with diesel more often than backup with solar. > , but also since 'electricity:source' would then have a double meaning > with 'the survey/map/place where the knowledge of the electricity was > obtained', which is apparently a problem for some other tags using source > as a keyword. > i'm currently thinking about refine generator:* subkeys and it's sure this discussion will be really inspiring. Indeed source should be avoided and I keep that in mind. In power context "source" refers to inputs and as we already have generator:output, why shouldn't we have generator:input? generator:input=wind input:wind=X kW output:electricity= Y kW All the best François
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