Ed Throws Trade Bodies Into Chaos Over DIY Solar!

"Ed Throws Trade Bodies Into Chaos Over DIY Solar!"  (efixx)  :-)  lol

Cue another early amendment and Section in BS7671 and   another 'membership' level in the brilliant CPSs for the trade to do DIY Solar installs.

:-)

Parents
  • DESNZ have released their technical safety study on Plug-in solar and opened a consultation on their proposal to amend the Plugs and Sockets Regs to introduce them. Looks like the momentum is building for their introduction.

    https://www.gov.uk/government/publications/plug-in-solar-electrical-safety-study

    www.gov.uk/.../plug-in-solar

  • Well nothing happens for years, and then  it moves at pace, perhaps to avoid being overtaken by other events.

    We now have a national specification - though not a British standard, this being written by the Department for Energy Security and Net Zero, to me, it seems technically perfectly OK on a quick read.

    Plug-in Solar Device Interim Product Specification -Technical and safety requirements for plug-in solar photovoltaic devices
    Version 1.0, June 2026

    https://assets.publishing.service.gov.uk/media/6a31167d15f2a70fac7e6026/plug-in-solar-interim-product-specification.pdf

    Also  there is now public consultation on plug-in solar is now open - but it seems calculated only to get the most enthusiastic of responses, as will be closed in  a little under 2 weeks ! This smacks of doing only the legal minimum to say we had a consultation phase.

    From https://www.gov.uk/government/consultations/plug-in-solar/plug-in-solar-consultation-document-accessible-webpage

    I can see question 6 raising a few eyebrows. 

    6 The electrical safety study showed plug-in solar was safe at a circuit level. Should the Interim Product Specification limit the number of microinverters to one per household or one per household circuit?

    At the very least. I don't know about many other houses but I have 2 indoor socket circuits, not counting the cooker branch or the one on the loft lights for the TV am, namely main ring and kitchen, and 2 more outdoors, garage and out-buildings. So perhaps I could have 3 plug in inverters  making  a total of 2.4kW with 6kw of panels ?

    The government announced its intention to make plug-in solar panels available in shops within months, providing households with a simple and affordable way to take control of their energy use and reduce costs. This consultation is a critical step in delivering that ambition.

    Consultation details

    Issued: 16 June 2026

    Respond by: 30 June 2026

    Enquiries to:

    Clean Power Unit
    Department for Energy Security and Net Zero
    Ground Floor
    3-8 Whitehall Place
    London
    SW1A 2AW

    Mike

Reply
  • Well nothing happens for years, and then  it moves at pace, perhaps to avoid being overtaken by other events.

    We now have a national specification - though not a British standard, this being written by the Department for Energy Security and Net Zero, to me, it seems technically perfectly OK on a quick read.

    Plug-in Solar Device Interim Product Specification -Technical and safety requirements for plug-in solar photovoltaic devices
    Version 1.0, June 2026

    https://assets.publishing.service.gov.uk/media/6a31167d15f2a70fac7e6026/plug-in-solar-interim-product-specification.pdf

    Also  there is now public consultation on plug-in solar is now open - but it seems calculated only to get the most enthusiastic of responses, as will be closed in  a little under 2 weeks ! This smacks of doing only the legal minimum to say we had a consultation phase.

    From https://www.gov.uk/government/consultations/plug-in-solar/plug-in-solar-consultation-document-accessible-webpage

    I can see question 6 raising a few eyebrows. 

    6 The electrical safety study showed plug-in solar was safe at a circuit level. Should the Interim Product Specification limit the number of microinverters to one per household or one per household circuit?

    At the very least. I don't know about many other houses but I have 2 indoor socket circuits, not counting the cooker branch or the one on the loft lights for the TV am, namely main ring and kitchen, and 2 more outdoors, garage and out-buildings. So perhaps I could have 3 plug in inverters  making  a total of 2.4kW with 6kw of panels ?

    The government announced its intention to make plug-in solar panels available in shops within months, providing households with a simple and affordable way to take control of their energy use and reduce costs. This consultation is a critical step in delivering that ambition.

    Consultation details

    Issued: 16 June 2026

    Respond by: 30 June 2026

    Enquiries to:

    Clean Power Unit
    Department for Energy Security and Net Zero
    Ground Floor
    3-8 Whitehall Place
    London
    SW1A 2AW

    Mike

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