[Tagging] Power generation refinement: power plant model evolution

François Lacombe francois.lacombe at telecom-bretagne.eu
Mon Apr 8 22:16:23 UTC 2013

2013/4/8 Ole Nielsen <on-osm at xs4all.nl>

> On 08/04/2013 15:02, François Lacombe wrote:
>> I finally agree with you.
>> I've began to update the proposal to remove relations in all cases
>> except when power plant doesn't have any physical permimeter.
> Thanks!

You're welcome :)
I've been sure it will satisfy someone else :)

> I'm failing to see the justification of 'intermediate' generators. Do you
> mean the boiler making steam for the steam turbine? That is an integral
> part of the thermodynamic cycle that the (output) generator operates on and
> shouldn't be mapped as a separate entity. The generator:method and
> generator:type tags already imply the presence of such "intermediate
> generators". In my opinion this 'intermediate' generator thing should be
> removed from the proposal as it would just cause confusion (it would also
> make the currently very complicated proposal slightly simpler).

All started from the solar thermal power discussion.
Viking81 suggested to map as power=generator thermal collectors which
produce steam for domestic heating and for electricity generation (with a
steam turbine).
We can find such items both on house's roofs and in solar power plants.
In one hand it's directly producing output power for domestic heating and
on the other, it's only intermediate since actually the steam turbine
produces electricity.

If thermal collectors must be mapped on house's roofs, they must be mapped
in a solar thermal power plants.
But since they're not producing output power, we can't put them at the same
level than the steam turbine (total power plant rating computation
matter)... This is the justification of intermediate.

> 2013/4/8 Martin Koppenhöfer <dieterdreist at gmail.com>
> I'd suggest a more specific key name like generator:role etc. Output and
> intermediate might seem a logical top-level distinction to you, but if
> others have different ideas it can soon become a mess...

Ok, let's say generator:role.

Like before, I don't see better solution to take care of a very specific
If you do, please share your science with me :)


*François Lacombe*

francois dot lacombe At telecom-bretagne dot eu
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