[Tagging] Charging stations: socket:<type>:output -- which format for the value?

Lionel Giard lionel.giard at gmail.com
Tue Jul 30 08:44:22 UTC 2019


All electric charging station that i have ever encounter are in "kW" not in
watt (ex: 3 kW, 50 kW, 120 kW, 175 kW...). To me, it is the same as the
maxspeed tag, we don't put it in m/h but in km/h -> we use the common unit
as everyone use it. Thus we don't use the SI value everywhere and that seem
logical, so here it seems ok to me to leave it in kW.

Le mar. 30 juil. 2019 à 04:40, brad <bradhaack at fastmail.com> a écrit :

> I don't have an opinion about kw or w, but if the value is only a number,
> then to prevent confusion and reduce mistagging the key should specify,
> output-kw=22 .
>
>
> On 7/29/19 5:00 AM, dktue wrote:
>
> I'd vote for kW aswell (and a value of "22" then), since we're not always
> using SI and not always base-unit-values (see kilometers per hour).
>
> Am 29.07.2019 um 12:53 schrieb Martin Koppenhoefer:
>
>
>
> Am Mo., 29. Juli 2019 um 12:39 Uhr schrieb dktue <email at daniel-korn.de>:
>
>> Hello,
>>
>> the OSM-Wiki-page on charging stations [1] defines the tag
>> socket:<type>:output=watt
>>
>> wheres the examples contain values like "22 kW".
>>
>> What would the preferred format be? "22000" or "22 kW"? I would like to
>> clearify this on the wiki-page.
>>
>> Personally I would prefer "22000" as it fits with other OSM-values (no
>> units).
>
>
>
> generally people are encouraged to add units for disambiguation reasons
> and to use locally used units and preferably SI units.
>
> For power, no default units are currently specified on this page:
> https://wiki.openstreetmap.org/wiki/Map_Features/Units
>
> And it doesn't even mention horsepower for power, a unit that for many
> people may be more evocative than Watt (everybody can imagine 30 horses,
> but how much are 22 kW?) ;-)
>
> Personally, if we were to set up a default for power units, I would prefer
> kW, because if we'd use Watt we will get very high numbers for MW (e.g.
> needed for power generators). Presuming, we would have the same standard
> unit for all things power, and not different defaults for socket and say
> power stations.
>
> Cheers,
> Martin
>
>
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