New DNO notification form for EV and Heat Pumps etc

[Gavin John Hyde]

There is a new form on the horizon for EV charge points.
Some interesting criteria now apply, If you are not sure what the fuse is then you must submit the form in advance of install regardless of max demand.
At present if the MD is <60 amps you can notify once installed.
Most of mine are done in advance anyway, keeps me in WPDs good books when I need a favour doing!
SSEN region is not so problematic as you can pull the fuse.
Some DNOS allow you to pull the fuse some dont so not sure how this will work for some installers. seems like they are moving towards a process where all but a handful of installs are pre-approved. At moment its like the wild west with some companies including a national one with initials BG, lots of blue vans and also fit boilers fitting them to 60A looped supplies without CT clamps and a MD through the roof - naughty naughty!

What really catches my eye is that in the new guidance the CT clamp / grid monitoring must be fail safe - ie if it comes loose, or signal is lost charger must not operate to prevent MD overloading the main fuse. G100 and current ENA rules do stipulate hardwired CTs for load management when purpose of Ct is to protect the fuse rather than simply monitor the energy being pulled in. Not sure how this will factor in with the harvis on the zappi chargers yet.

 

[a-z electrics]

There is a new form on the horizon for EV charge points.
Some interesting criteria now apply, If you are not sure what the fuse is then you must submit the form in advance of install regardless of max demand.
At present if the MD is <60 amps you can notify once installed.
Most of mine are done in advance anyway, keeps me in WPDs good books when I need a favour doing!
SSEN region is not so problematic as you can pull the fuse.
Some DNOS allow you to pull the fuse some dont so not sure how this will work for some installers. seems like they are moving towards a process where all but a handful of installs are pre-approved. At moment its like the wild west with some companies including a national one with initials BG, lots of blue vans and also fit boilers fitting them to 60A looped supplies without CT clamps and a MD through the roof - naughty naughty!

What really catches my eye is that in the new guidance the CT clamp / grid monitoring must be fail safe - ie if it comes loose, or signal is lost charger must not operate to prevent MD overloading the main fuse. G100 and current ENA rules do stipulate hardwired CTs for load management when purpose of Ct is to protect the fuse rather than simply monitor the energy being pulled in. Not sure how this will factor in with the harvis on the zappi chargers yet.

There is a new form on the horizon for EV charge points.
Some interesting criteria now apply, If you are not sure what the fuse is then you must submit the form in advance of install regardless of max demand.
At present if the MD is <60 amps you can notify once installed.
Most of mine are done in advance anyway, keeps me in WPDs good books when I need a favour doing!
SSEN region is not so problematic as you can pull the fuse.
Some DNOS allow you to pull the fuse some dont so not sure how this will work for some installers. seems like they are moving towards a process where all but a handful of installs are pre-approved. At moment its like the wild west with some companies including a national one with initials BG, lots of blue vans and also fit boilers fitting them to 60A looped supplies without CT clamps and a MD through the roof - naughty naughty!

What really catches my eye is that in the new guidance the CT clamp / grid monitoring must be fail safe - ie if it comes loose, or signal is lost charger must not operate to prevent MD overloading the main fuse. G100 and current ENA rules do stipulate hardwired CTs for load management when purpose of Ct is to protect the fuse rather than simply monitor the energy being pulled in. Not sure how this will factor in with the harvis on the zappi chargers yet.

Dont know why the DNO dont do the visit and assess the situation themselves.. they can then do any necessary upgrades if thats required.
If they make it too difficult to apply then people wont bother to notify and then they wont get any info, which rather misses the point of all these energy requirements and while theyre about it why not fit a smart meter too?
It took them over 2 months to reply to my pre-installation form for a charger, I just went ahead anyway.. fortunately they said yes