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

Warin 61sundowner at gmail.com
Tue Jul 30 01:14:13 UTC 2019

The use of 'multipliers' is common ..

As well as kilometers per hour (100 kmh would be come 100,000 mh without 
the multiplier) there is mass kg and tonnes .. (10kg would be come 
10,000 g with the multiplier) , elevation in meters and kilometers etc.

Preference should be for what is commonly used for that particular 
amount and feature.

I would leave this alone - let the mapper use that thing that should be 
applied - common sense.

On 29/07/19 21:00, 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 <mailto: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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