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How to know if your roof is sound enough for solar panels

Posted by Chris Rudge on 19 September 2011 at 3:29 am

How to know if your roof is sound enough for solar panels

Q: I've built a few houses and know how important it is to have calculations for roof trusses, considering the weight and "sail" potential of PV (I'm considering a 3.99kw 21 panel Schuco system in excess of £10k). Who takes responsibility if this lot blows off or you get some structural damage? The…

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Auto control enables use of solar PV for immersion heater

Posted by Chris Rudge on 16 September 2011 at 10:38 am

Auto control enables use of solar PV for immersion heater

Chris's previous article on how to use excess solar generated electricity in the home generated so much interest that he has written a follow up that goes into more detail about about the control he has built to use solar-generated electricity to heat water. One of the side issues of the …

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Strict enforcement of G83/1 restricts installation of 4kWp solar PV

Posted by Chris Rudge on 30 August 2011 at 9:54 am

Strict enforcement of G83/1 restricts installation of 4kWp solar PV

Many installers may have already encountered the newly enforced grid connected inverter G83/1 requirements recently. In simple terms, all the District Network Operators (DNO's) have finally got together and are now insisting that all installations should completely comply with G83/1 requireme…

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How important is voltage for a solar PV inverter?

Posted by Chris Rudge on 22 June 2011 at 9:20 am

How important is voltage for a solar PV inverter?

Q: I am thinking of installing a solar electricity system. I believe that the inverter is a key element. One company is peddling an inverter that operates at half the voltage of others. Is this an important factor when deciding which system to go for. A: All inverter manufacturers have …

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How to store your solar generated electricity to use in the evening

Posted by Chris Rudge on 11 May 2011 at 9:28 am

How to store your solar generated electricity to use in the evening

Q: I have installed solar panels and am amazed at the power I am creating.  This is great in sunlight hours - but has anything been produced to store this power so I can use it in the evenings?  This is such a waste of free power, surely someone somewhere must have this on board.  …

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