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Posted to uk.d-i-y
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solar pv to storage heater
In message ,
lid writes
In message ,
writes
Interesting feedback thanks. Obviously not a good idea is the general
consensus.
Just as a matter if interest I thought Id run these figures by and see
if I can get a
clearer picture... My electric storage heater uses 12kwh a night on
cheap rate
night tariff. (Thats 85 p/night) That gets it nice and hot.
Im trying to calculate how many panels would give me the equivelent of
12kwh mains a day...so...
How does one calculate average annual UK output for each 100W panel?
Assuming more in summer less in winter etc.
And how can that be converted into 12kwh/day? In other words
in the UK, if one wanted 12kwh for *general use heating* during the day,
how many 100w panels, on average, would be needed to get the
the equivelent of a mains 12kwh/day input?
Thanks ahead.
On a 4kW SSE-facing array in Sussex, with some shading from trees in
December/January, I get about 3.5MWh/year, so on average, just under
10kWh/day. But that's mostly in May to September. Daily outputs are as
high as 25kWh in summer, but at this time of year 3 kWh would be
exceptionally good, and a dull day might yield only 500Wh. So to
guarantee 12kWh on any day, I make that nine hundred and sixty 100w
panels :-(
HTH...
But scientists have come up with a new way to combat global warming
caused by excessive CO2 emissions by shooting salt crystals into the
atmosphere to create more cloud to reflect the suns heat back into space
thereby screwing solar panels even further - and causing us to fall back
on gas power stations which in turn will pump more CO2 into... Ah!!
--
bert
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