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Topic Title: Domestic solar panel wiring installation
Topic Summary: connecting pv to existing consumer installation
Created On: 10 September 2013 11:32 AM
Status: Read Only
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 10 September 2013 11:32 AM
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Is there a standard which sets out how physically the ac circuit form say a PV installation is connected to the existing consumers installation? - My interest is whether the ac supply from the PV circuit can go direct into the customers consumer unit and terminate on an circuit breaker if there is a spare way, or whether a separate isolation device is required in a separate physical enclosure adjacent to the customers consumer unit.

Many thanks.
 10 September 2013 12:07 PM
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Try BS 7671 in general and section 712 in particular - also Dougie's recent thread

There's no requirement for a separate physical enclosure - indeed some manufacturers have "PV ready" CUs - e.g.

Isolation follows the usual rules - e.g. it can be remote, provided it can be locked off and so on.

- Andy.
 10 September 2013 01:38 PM
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Regardless of whether or not you wire into the existing CU, there should be a separate isolator that can be used to disconnect the PV inverter completely from the rest of the consumer's installation.

S P Barker BSc PhD IEng MIET
 10 September 2013 03:40 PM
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Assuming you want it to fall within the ambit of MCS then the requirements are laid out in here:

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