Hi Dave, On Thu, 4 Apr 2019 at 14:11, Dave F via Talk-GB <talk-gb@openstreetmap.org> wrote: > This would be a great project, however I think there's some confusion in > the tagging which requires agreeing/clarifying.
Solar farms should have a power=plant covering the whole perimeter as an area or multipolygon. I agree with you that relations shouldn't be used because they're unnecessary. The output of the farm should be the "plant:output:power=" tag on that object. The use of power=plant for this was enshrined in the approved Power Generation Refinement tagging proposal back in 2013 [1]. It also makes sense by analogy to wind farms (where we do use power=plant on relations). I would argue landuse=industrial is not appropriate in this case, notwithstanding what the wiki says, and perhaps landuse=grass is appropriate here. As a rule of thumb, 1 MW is probably a good initial threshold to use when deciding whether to use the power=plant tag for solar, if only to focus our tagging energy on larger plants to start with. The power=generator tag should represent the arrays of panels as closely as you can be bothered. I generally tag contiguous blocks of panels as one power=generator, rather than every individual row. With OpenInfraMap I'm now starting to estimate the output of solar generators by their area, so I have a preference towards seeing them tagged as closely as possible. However, I have little patience for micro-mapping so I feel like each block of panels is a good compromise. Cheers, [1] https://wiki.openstreetmap.org/wiki/Proposed_features/Power_generation_refinement -- Russ Garrett r...@garrett.co.uk _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
