Lately it "snowed" (in fact melted snow and hail) by here. I took a picture of my PV solar panels covered of white :
The fun is that at that moment they were producing
Then I looked at my neighborhood and saw a "snow hole" on a white roof. This made me though he has an insulation problem and looked at my whole roof (west and east sides) :
This is logical that there is no "snow hole" on my roof as the insulation isn't under the roof, but horizontally over the ceiling, ie we can't use the space under the roof.
This test can't say you if your insulation is good, but sometimes it can say you that it's bad.
Denis.
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Earth absorbs 1.8 t CO2/head/yr, while a French generates 6.2 t CO2/yr
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.- 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...