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<p>Hi Steve,</p>
<p>I've been thinking more about this and I think the subkeys grid,
generator and battery should cover any conceivable method (for
now!) to acquire electricity. So a <b>grid</b> is any collection
of multiple generators/batteries/substations/transformers, a <b>generator</b>
is a device that locally produces electricity and a <b>battery</b>
(either chemical or mechanical) is something that locally stores
energy for later usage. <br>
</p>
<p>The possible values for any of these subkeys is then
yes/backup/no (i.e. electricity:battery=no), where <b>yes </b>means
the device/grid is always connected and it is usually (daily?)
used. The term <b>backup</b> then means that the device is only
used when the usual device reaches its capacity or fails, so it is
not always on/connected. The type of backup, be it UPS or
stand-by, and the length of time that it can keep systems running
could then also be tagged. To specify exactly which devices are
kept running it might then be useful to have a relation-tagging
scheme for circuits but I think this would be outside the scope of
the electricity tag which should only note the presence of the
systems in a building/amenity. This could then be a flag for e.g.
firemen. The term <b>no</b> would then just mean that the
specified building amenity does not have a grid/generator/battery.
If it's unknown, it should be left untagged.</p>
<p>I think this should completely cover all cases of buildings
having electricity? and the specific tagging for backup systems
could then be discussed separately. And if a new method of
acquiring electricity is introduced (wireless charging?) it could
be easily added to the current tagging.<br>
</p>
<p>Regards,</p>
<p>Lukas<br>
</p>
<div class="moz-cite-prefix">On 12.11.20 02:15, Lukas Richert wrote:<br>
</div>
<blockquote type="cite"
cite="mid:c2f97dea-c0ef-bd77-0995-31ec20814cf7@posteo.net">If it's
unclear I would just leave electricity:grid untagged as there's no
way to know if it's yes or no (another advantage of the namespace
tagging). In some areas, I think one could relatively safely
assume that if all other houses are connected to the grid, that
one likely is too. However, Tagging the presence of a generator
is definitely easier to see and would be more important for
firefighters to know (islanding).
<br>
<br>
Mostly I would probably say that the vast majority of private
houses probably don't need to be tagged in this detail and it
definitely is they type of information I've seen advertised at
hotels and camp sites where one wouldn't have to get all creepy to
figure it out.
<br>
<br>
Also, if I understood <a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Solar_inverter">https://en.wikipedia.org/wiki/Solar_inverter</a>
correctly, all of the different inverter types you mentioned are,
one way or another, connected to the grid. That might be another
level of detail one wants to map, but doesn't need to be worked
into electrical:grid I think? (I don't own either solar panels or
a house that they could go on though, so I'm not completely
informed on this topic!)
<br>
<br>
Luke
<br>
<br>
<br>
On 12.11.20 01:59, stevea wrote:
<br>
<blockquote type="cite">That IS what I mean. However, STILL left
unsaid is that short of ringing the doorbell and asking the home
/ business owner "are your solar panels grid-tied, battery-feed,
directly converted to an inverter...?" you don't really know.
<br>
<br>
How will you tag those buildings? (I feel a nose sniffing up
my, um, house). Really, there isn't any way to know, without
getting creepy - snoopy.
<br>
<br>
SteveA
<br>
<br>
<blockquote type="cite">On Nov 11, 2020, at 3:45 PM, Lukas
Richert <a class="moz-txt-link-rfc2396E" href="mailto:lrichert@posteo.de"><lrichert@posteo.de></a> wrote:
<br>
<br>
If I understood you correctly, this would fall under
grid-connected houses that I mentioned in the last example.
This was the specific reason why I think namespace tagging
seems to be clearer. The house would then be tagged with:
<br>
<br>
building=house
<br>
electricity=yes
<br>
electricity:generator=yes
<br>
electricity:grid=yes
<br>
electricity:generator:origin=solar
<br>
electricity:access=no
<br>
<br>
By tagging both electricity:grid=yes and
electricity:generator=yes this specifies that the building is
connected to both and both are routinely used. In contrast, it
would also be possible to tag electricity:generator=backup if
the generator is only on when the grid fails.
<br>
<br>
Is this what you meant by grid-tie?
<br>
<br>
Regards, Luke
<br>
</blockquote>
</blockquote>
</blockquote>
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