Forum: Geothermal & Heat Pumps
04-22-18, 02:42 PM
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Replies: 4
Views: 3,856
I already have 400W of PV, and a home-made CHP...
I already have 400W of PV, and a home-made CHP unit for higher power AC power and battery charging. I am about to rewind a 7kVA generator to charge 24V batteries and supply AC power from the same...
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Forum: Geothermal & Heat Pumps
04-22-18, 05:40 AM
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Replies: 4
Views: 3,856
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Forum: Geothermal & Heat Pumps
04-21-18, 04:37 PM
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Replies: 4
Views: 3,856
Heatpump efficiency/reuse
Hi. Can anyone comment on what improvements have allowed heatpumps to become more efficient ? Older ones were delivering maybe 3x electric power, while newer ones are > 5x. I live on a boat in a...
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Forum: Appliances & Gadgets
03-10-18, 04:35 PM
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Replies: 17
Views: 13,803
Scale v. efficiency
The only way it could affect efficiency is through heat being conducted out to the terminals and external wires. That will be negligible from the efficiency POV, but as has already been said, it...
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Forum: Conservation
10-28-17, 04:08 PM
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Replies: 58
Views: 29,677
Turbo
[QUOTE=oil pan 4;56102]At some point I would like to have a stationary backup 1800rpm, liquid cooled kubota diesel generator . I have even been looking for an old timey cast iron radiator to put in...
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Forum: Conservation
10-25-17, 06:40 AM
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Replies: 58
Views: 29,677
Going off grid
Buy or build a CHP system. Water cooled diesel engine driving a generator. If you can, do it with belt drive to mains alternator, add a 24V alternator to directly charge batteries, and run the...
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Forum: Solar Power
06-20-16, 04:24 PM
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Replies: 13
Views: 9,340
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Forum: Solar Power
06-20-16, 02:31 PM
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Replies: 13
Views: 9,340
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Forum: Solar Power
06-20-16, 09:30 AM
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Replies: 13
Views: 9,340
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Forum: Solar Power
06-20-16, 09:27 AM
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Replies: 13
Views: 9,340
Panel repair
Have a look on eBay for solar film. Alternatively, see if you can get some toughened glass, 3m thick, then apply the PV array with some new adhesive. There are a lot of "water-clear" polyurethanes...
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Forum: Solar Power
06-19-16, 03:55 PM
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Replies: 13
Views: 9,340
PV panel renovation
Hi. Does anyone have any tips on removing the shattered glass from a PV array ? I have two 200W Kyocera panels with shattered glass, the aftermath of a storm. I am loath to chuck them out, but...
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