Thank you for these comments, André, I have updated the wiki page with some amendments: http://wiki.openstreetmap.org/wiki/Proposed_features/generator_rationalisation
On 26 August 2010 13:43, André Riedel <riedel.an...@gmail.com> wrote: > The word 'generator:' is better than 'power:', but it is still not > easy for me to tag a heating (only) station with power=generator. > > http://wiki.openstreetmap.org/wiki/Tag:power=generator > >>A place where electrical power is generated. A power station, turbine or > other form of electrical generator.<< > I think I might just change that description to avoid confusion. As previously discussed, it would get very complicated if we tried to keep electrical generators separate from other kinds of energy generators, and changing the tag to "energy=generator" would put it out of sync with the other power tags. > > > The output rating (generator:rating) > > Which rating should be tagged if it is a cogenerating plant? > Electricity only? Heat and Electricity? > That's a good point. It keeps getting more complicated! Perhaps we should say that it should be the combined rating for now. Providing the means to tag the separate outputs for a trigeneration plant could get very messy! > > The source of energy used (generator:source) > Combined with 'generator:method=fission' you have to add 'uranium_235'. > If change the whole system, please add 'wood', 'wood_pellet', > 'diesel', 'crude_oil'. > I thought about that for values like "biomass" and "biofuel". Again, it is perhaps getting more detailed than we need in OSM. After all, "wood" could be broken down into any number of sources such as "coppiced_FSC_wood" and "waste_municipal_tree_cuttings" :-) > > The type of energy generated (generator:output) > Whats about 'vacuum' and 'compressed_air'? > Yes, I will add them. > > > The method of generation (generator:method) > Looks good, but which method to choose for an hydro, tidal, wave or an > osmotic power plant? What should I use for 'generator:source'? > Gravitation, Moon, Weather, Water, Salt? > > Quite often the generator:method will be implied by the generator:source and sometimes also the generator:output. For instance, tag a power=generator with generator:source=nuclear and we can reasonably infer that the method is fission and the output electricity. So for tidal, hydro, wave etc. I would say it is safely inferred. If anyone is knowledgeable about the different methods by which tidal, wave and hydro power technologies convert to electricity then by all means add them to the method table. I confess I know very little about that! As for your proposed sources, you've gone back one step too far! The table shows values for hydro, tidal and wave. Regards, Tom -- http://tom.acrewoods.net http://twitter.com/tom_chance
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