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<p>Hi Paul, <br>
</p>
<p>I'm not quite sure if I correctly understood what you meant, so
correct/explain more if I get it wrong! My sole goal with the
infrastructure part of the tagging is to specify if a connection
exists sometimes, always or never. In the case of solar panels,
even though they don't produce electricity at night, they are
always connected so the building would then be tagged as
'electricity:generator=yes'. <br>
</p>
<p>So far, I've not even attempted to incorporate the method with
which the generator is connected to the grid (if there is a
connection). If think for that it would be easiest to have a
separate tag. Overall, I think I mean to only generally cover all
cases, but perhaps with not as much detail as you envision. I
think that needs more and different tags to keep things clear.<br>
</p>
<p>As to the electric vehicles, I think it would be fine to then tag
electricity:battery=yes and then have a separate tag like
battery:type=electric_vehicle or some such. </p>
<p>Cheers, Lukas<br>
</p>
<div class="moz-cite-prefix">On 14.11.20 18:43, Paul Allen wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPy1dOL_V47tYND2wcbmvykbO5t+J_uLE_HNkTYec52V4oe4-w@mail.gmail.com">
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<div>On Sat, 14 Nov 2020 at 17:24, Lukas Richert <<a
href="mailto:lrichert@posteo.de" moz-do-not-send="true">lrichert@posteo.de</a>>
wrote:</div>
<div><br>
</div>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>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.</div>
</blockquote>
<div><br>
</div>
I'm not committing to supporting or opposing this scheme, just
bikeshedding.</div>
<div class="gmail_quote">But it's a BIG bikeshed.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">It isn't as simple as your tagging
scheme makes out.<br>
</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">A photovoltaic system for a house may
charge batteries, which come into</div>
<div class="gmail_quote">play when there is no sun (it's night
or it's too cloudy). There is no grid</div>
<div class="gmail_quote">connection at all.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">A photovoltaic system for a house may
provide electricity when it can,</div>
<div class="gmail_quote">with the grid providing electricity
when the photovoltaic system cannot.</div>
<div class="gmail_quote">There are no batteries involved.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">A photovoltaic system for a house not
only provides electricity for the</div>
<div class="gmail_quote">house, it also feeds electricity into
the grid (for which the owner gets</div>
<div class="gmail_quote">a rebate on the bill) with the grid
supplying power when the</div>
<div class="gmail_quote">photovoltaic system cannot. There are
no batteries involved.<br>
</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">As either of the preceding two cases,
but with batteries also involved.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Electric vehicles may be used as
storage capacity for the grid. When</div>
<div class="gmail_quote"> they're on charge (usually at night)
they may supply power to the</div>
<div class="gmail_quote">grid to cope with brief increases in
demand (people putting the</div>
<div class="gmail_quote">kettle on during TV adverts). I don't
know if any current systems</div>
<div class="gmail_quote">do so, but it would be possible for the
car to provide household</div>
<div class="gmail_quote">electricity for a while during a power
outage.<br>
</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">I've probably missed something. Your
tagging either needs to</div>
<div class="gmail_quote">cover less cases or more.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">-- <br>
</div>
<div class="gmail_quote">Paul</div>
<div class="gmail_quote"><br>
</div>
</div>
</blockquote>
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