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20 panel commercial use payback
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<blockquote data-quote="ProDave" data-source="post: 450557" data-attributes="member: 6969"><p>30,300 KWh per year is 97 KWh per day (assuming you are closed on Sundays and not allowing for bank holidays)</p><p></p><p>Over the working day, say 9 hours? you are averaging a load of 10KW.</p><p></p><p>I know that's a gross over simplification and not taking into account the storage heaters etc, but what the hell are you using to be running at 10Kw most of the time you are open?</p><p></p><p>A 5ft flourescent is 58W Do you really have 172 of them?</p><p></p><p>I'm just staggered by the usage.</p><p></p><p>Perhaps, rather than solar PV, you need a whole lot of skylights on the roof to let some daylight in so you can turn a lot of the lights off?</p></blockquote><p></p>
[QUOTE="ProDave, post: 450557, member: 6969"] 30,300 KWh per year is 97 KWh per day (assuming you are closed on Sundays and not allowing for bank holidays) Over the working day, say 9 hours? you are averaging a load of 10KW. I know that's a gross over simplification and not taking into account the storage heaters etc, but what the hell are you using to be running at 10Kw most of the time you are open? A 5ft flourescent is 58W Do you really have 172 of them? I'm just staggered by the usage. Perhaps, rather than solar PV, you need a whole lot of skylights on the roof to let some daylight in so you can turn a lot of the lights off? [/QUOTE]
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