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Updating system to run during a power cut

Posted: Mon Mar 16, 2026 1:47 pm
by DavidS
I know that when there is a power cut my system will not work to ensure the safety of engineers working on the grid - export of power to the grid could be a hazard for them.
I know it is possible to have my system modified to allow it to run during a power cut.
Has anyone had this work carried out, are there any companies who specialise in this type of work and what a ball park cost for this is likely to be.
Thanks in advance for any guidance you can suppl.
David

Re: Updating system to run during a power cut

Posted: Mon Mar 16, 2026 4:29 pm
by MaterialBarracuda48
The main thing you will need to run off grid is a seperate Earth bond, so a rod/disc placed underground.
Then you just need this wired up and the Inverter needs to be told it can run in Island mode I think they call it.

Then you need to wire up something to the EPS port on your Inverter to supply power to a socket, or a small consumer unit that a few critical house circuits are wired up to, the more expensive alternatives are going with an ATS (automatic transfer switch) An ATS can be wired up so you whole house or majority of circuits can be wired up for off-grid, does depend on your Inverter capacity of course.

Prices depend on what you need to accomplish, so hard to say.
Decide what you want, and post back more details for more accurate answers.

Do you suffer from lots of power cuts?