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Re: Re: OT: Electricity generation
Jim,
Sun's irradiance is 1350 to 1400W/m2 - but that's in space!
Most of this is infrared - Solar hot water can collect around 1000W/m2 but
that's assuming the Sun is directly overhead.
For PVC it depends on the frequency of light to how much the cell can
capture - and also on the cell's efficacy,
I'm currently considering building a large thermal store to take advantage
of the much higher IR irradiance and higher efficacy of collectors.
However, PVC normally provide about 120W/m2 peak
Regards,
Simon
----- Original Message -----
From: Jim Noble
To: ukha_d@xxxxxxx
Sent: 16 January 2009 14:33
Subject: Re: [ukha_d] Re: OT: Electricity generation
Excellent, so that's about a 5-6 year payback period. Anyone know how
many W/m^2?
Jim
[Non-text portions of this message have been removed]
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