I have been wondering one thing:
when residential #solarPanel installations produce energy that is used in the same house and not sold to the grid, is it counted in the stats about the renewable energy production of a country / grid-area-whatever? Or does it get missed because the grid never sees it? Or does it depend on the local regulations?
does anybody know?
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David de Groot
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David de Groot
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kdehairy
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David de Groot
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Chris Alemany🇺🇦🇨🇦🇪🇸
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Elena ``of Valhalla''
in reply to Chris Alemany🇺🇦🇨🇦🇪🇸 • •@Chris Alemany🇺🇦🇨🇦🇪🇸 yeah, I was thinking of the various “this year solar production has reached X% of total energy produced in country Y” headlines, and those tend to report that the total energy produced/used has also increased.
Or maybe it's just that residential energy use and production doesn't make that much of an impact, compared to industrial.
Chris Alemany🇺🇦🇨🇦🇪🇸
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Jenny Chase
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bookandswordblog
in reply to Elena ``of Valhalla'' • • •Household solar electricity generation in the Australian national accounts
Australian Bureau of StatisticsElena ``of Valhalla'' likes this.
scollovati :linux:
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The Penguin of Evil
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scollovati :linux:
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Elena ``of Valhalla''
in reply to scollovati :linux: • •@scollovati :linux: that's a safety feature (to avoid sending back energy to the grid when it's supposed not to be live, and prevent accidents to the people working on it), and it doesn't necessarily mean that the meter will actually *see* the energy that gets self-consumed.
Devices that allow self-consume even when there is a grid outages do exist and are legal in Italy, but they are an additional expense that very few people add to their systems.
(Besides, you don't really *have* to connect the panels to the grid, you are perfectly allowed to be fully off-grid, but then of course you don't get the advantage of being able to get energy from the grid when there isn't enough sun)
Pare :pace: 🚲 🌞
in reply to Elena ``of Valhalla'' • • •Se l'impianto non è proprio collegato alla rete (rifugio di montagna o simili) immagino sia difficile contarlo, ma certamente va stimato nelle statistiche.
In Italia però molti impianti ricevono incentivi sulla base della produzione, anche se consumata sul posto (o soprattutto, le Comunità Energetiche esistono a livello europeo), quindi va misurata.
Se guardi i dati pubblicati da Terna, contengono una misura sempre aggiornata anche per la voce auto-consumo.
dati.terna.it/generazione#bila…
Generazione Energia | Dati Terna Driving Energy
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Andrew McMillan
in reply to Elena ``of Valhalla'' • • •Someone in this thread mentioned that in Italy they're connected to the meter and you can't power your house from the sun during an outage, but I believe that's a separate safety related issue - if people are working on the lines during an outage they don't want any unexpected electricity zapping them. We have a special system to disconnect from the grid in an outage, but it's rare and expensive here in New Zealand.
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external quantum efficiency
in reply to Elena ``of Valhalla'' • • •I think "it depends"; there are some cities where solar is "behind the meter" and is not visible to the grid, there are some cities where the solar is "through the meter" and it does get measured. I think mine is the latter, my utility bill says how much I generated iirc.
Maybe Germany's "balkonsolar" is the former?
Then there are edge cases like off the grid houses...
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cate
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The Penguin of Evil
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The Penguin of Evil
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Jenny Chase
in reply to Elena ``of Valhalla'' • • •usually not.
Some research houses (including ours, and Ember for Pakistan where this number is large) estimate from installed capacity and typical insolation, for some purposes.
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