4 ms·

Well, looks like smart meters started appearing in US slightly later than e.g. here in Finland, around 2006-2007, so I'm not sure that explains the difference.

by AnssiH 5y ago

Well, looks like smart meters started appearing in US slightly later than e.g. here in Finland, around 2006-2007, so I'm not sure that explains the difference. Could be explained by lower mobile network coverage in U.S., I guess. US statistic: https://www.statista.com/statistics/676472/number-of-smart-meter-installations-in-the-united-states/ https://www.statista.com/statistics/676472/number-of-smart-m... In 2005 in Finland about 7% of households had smart meters, with 80%+ coverage mandated by 2013 and actual coverage of 99.6% of under-63A meters in 2016 (Finnish sources: https://www.vttresearch.com/sites/default/files/julkaisut/muut/2006/VTT-R-09048-06.pdf https://www.vttresearch.com/sites/default/files/julkaisut/mu... https://tem.fi/documents/1410877/3481825/AMR+2.0+loppuraportti+15.12.2017/6a2df7e6-a963-40c0-b4d8-d2533fbca488/AMR+2.0+loppuraportti+15.12.2017.pdf https://tem.fi/documents/1410877/3481825/AMR+2.0+loppuraport...).

Scoundreller 5y ago
What’s special about 63A meters? That’s low, but I guess nobody has electric heat/AC. I guess they’re the ones that can be installed indoors?
- theshrike79 5y ago
  3x 63A is the reasonable maximum a normal consumer would want at their house. Normal houses are around 3x 32A. Everything over that is a commercial building and they get billed with different rules and measurements due to the equipment they tend to have. Something about three phase engines and power phases in commercial lighting. I zoned out during those meetings :D
- archi42 5y ago
  Finland has 230V, so if you're from the US with 110V the low current rating might be confusing ;-) I'd also guess that in Finland they also run three phases into each house/unit (we do in Germany), meaning that's 3*63A = 189A. (Or just shy of 400A on a 110V grid). For us that's the default grid connection you get for your house. As for your guess: That's just a cultural thing I suppose. I've never seen outdoor meters around here.
  - bluGill 5y ago
    The US is 240 volt for power purposes. The 120 volt thing is just dividing that in half - the meters don't measure that. These days most US houses get 200 amp service, but in the past 30, 60, and 100 were all common (100 is still done). I know of a few houses with more than that, but those are not normal.
    - kalleboo 5y ago
      If you’re adding together the phases like that, European houses are 400V instead of 230V (and yeah you can get 400V ovens etc)
      - bluGill 5y ago
        3 phase is different from us split phase. In the us that would be 404 volts (or about that, I don't work with it just know it exists) or 208 volt if you that the split phase in 3 phase. Anyway the point is 3 phase is not added in the same way as split phase. I think you know that, but I'm sure someone else doesn't.
  - Scoundreller 5y ago
    Naw, Canadian. Cool to have 3ph at home (even without the #1 thing that fails here because we don’t have 3ph: a/c capacitors), but why’s your industrial supply just 400V instead of a soup of 347V, 480V and 600V?

by AnssiH 5y ago

Scoundreller 5y ago

What’s special about 63A meters? That’s low, but I guess nobody has electric heat/AC. I guess they’re the ones that can be installed indoors?

theshrike79 5y ago
3x 63A is the reasonable maximum a normal consumer would want at their house. Normal houses are around 3x 32A. Everything over that is a commercial building and they get billed with different rules and measurements due to the equipment they tend to have. Something about three phase engines and power phases in commercial lighting. I zoned out during those meetings :D
archi42 5y ago
Finland has 230V, so if you're from the US with 110V the low current rating might be confusing ;-) I'd also guess that in Finland they also run three phases into each house/unit (we do in Germany), meaning that's 3*63A = 189A. (Or just shy of 400A on a 110V grid). For us that's the default grid connection you get for your house. As for your guess: That's just a cultural thing I suppose. I've never seen outdoor meters around here.
- bluGill 5y ago
  The US is 240 volt for power purposes. The 120 volt thing is just dividing that in half - the meters don't measure that. These days most US houses get 200 amp service, but in the past 30, 60, and 100 were all common (100 is still done). I know of a few houses with more than that, but those are not normal.
  - kalleboo 5y ago
    If you’re adding together the phases like that, European houses are 400V instead of 230V (and yeah you can get 400V ovens etc)
    - bluGill 5y ago
      3 phase is different from us split phase. In the us that would be 404 volts (or about that, I don't work with it just know it exists) or 208 volt if you that the split phase in 3 phase. Anyway the point is 3 phase is not added in the same way as split phase. I think you know that, but I'm sure someone else doesn't.
- Scoundreller 5y ago
  Naw, Canadian. Cool to have 3ph at home (even without the #1 thing that fails here because we don’t have 3ph: a/c capacitors), but why’s your industrial supply just 400V instead of a soup of 347V, 480V and 600V?