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Old 03-23-09, 04:43 PM   #27
groar
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Default Winter is gone, but summer isn't here yet

The last 8 days have been very sunny

At one side our panels have beaten all the records.
Sunset and sunrise are separated by 12h15 and this duration will increase until 21st of June. Also the sun isn't very high in the sky at midday, so the max instantaneous has been around 1850W while panels' max is 3000.

Here are the charts :

HP: Peak Hours (06h30-22h30) / HC: Off Peak Hours (22h30-06h30)

Here are the numbers :









Day Production HC Cons. HP Cons. % of Prod. vs Cons.
Mon 11179 9056 12878 50.97%
Tue 11196 10289 12283 49.60%
Wed 10883 9457 13261 47.90%
Thu 11106 11198 10142 52.04%
Fri 11682 8080 9550 66.26%
Sat 11969 10340 11175 55.63%
Sun 11987 9630 13981 50.77%
Mon 11685 9777 11017 56.19%
Total 91687 77827 94287 53.27%

Note: the Mars' average forecast is 8.5kWh/day.
The best production day is Sunday it was also the coldest day, so the panels' efficiency was higher.

At the other side this week was the hotter, so the consumption was the lowest. As I worked at home all week, and today, I opened all the shutters and let the sun heat the inside which helped a lot The consumption is 20% lower than current Mars' average and 40% lower than February's average.

But weather forecast is cloudy or rainy, and colder for next days

Denis.
__________________
Earth absorbs 1.8 t CO2/head/yr, while a French generates 6.2 t CO2/yr
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  • kg saved 06/08-08/09: 1816.9+382.9 (ecodriving / 1420mi not driven) = 2199.8
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    (2.66 kg/l diesel)
  • kg saved by 3kWc photo-voltaic solar panels : 187 kg/yr
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    (59.1 g/kWh)
Radioactive wastes saved by 3kWc photo-voltaic solar panels :
  • Long life (>100,000 years) : 2.85 g/yr (0.9 mg/kWh)
  • Short life (<300 years) : 31.7 g/yr (10.0 mg/kWh)
Based upon "official" French figures...
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