March 5, 20251 yr Hi All, We moved into a house that already had a solar system installed - however we have now found out that the G83 cert (applicable when it was installed) was never registered. The company that installed it has gone out of business so I am trying to apply for the certification myself (so that we can then sign up to one of Octopuses tarrifs). I gather that I would now need to apply for a G98. I have confirmed with SolarEdge that our inverter meets the standards, and I have managed to get the DNO certificate. However, I am finding some of the questions on the UKPN Smart Connect site a bit confusing. I did try reaching out to a couple of local installers - but none seem want to help. Has anyone gone through this process that could give me some advice?
March 5, 20251 yr G98 is a notification not an application. How do you know the G83 wasn't registered? Our DNO had no record of our G83 install but admitted that it doesn't necessarily mean they didn't receive it!! If your inverter is an older one that is G83 compliant but not G98, you might run into problems submitting generation a G98??
March 5, 20251 yr Author Honestly, I don't know if the G83 was registered or not. I am going off the MCS certificate that I have managed to get that says at the bottom "DNO Notification Compliance: To be notified post connection and commissioning", and when I called UKPN they said that they didn't have any details for our house and to fill in the G98. I did contact SolarEdge who confirmed that the inverter is G98 compliant - but honestly feel a bit stuck.
March 5, 20251 yr Not familiar with UKPN G98 form but up here in Scotland the SPN notification form is quite minimal, if you have the MCS cert most if not all the information should be there. Technically the DNO is supposed to be informed before switching on but it’s usually straight forward.
March 5, 20251 yr 59 minutes ago, CMPW said: Honestly, I don't know if the G83 was registered or not. I am going off the MCS certificate that I have managed to get that says at the bottom "DNO Notification Compliance: To be notified post connection and commissioning", and when I called UKPN they said that they didn't have any details for our house and to fill in the G98. I did contact SolarEdge who confirmed that the inverter is G98 compliant - but honestly feel a bit stuck. That's exactly where we ended up with an MCS cert but the DNO having no record of the install. If SE have confirmed the inverter is G98 compliant then steam on with the notification.
March 5, 20251 yr 42 minutes ago, cjsparkey said: Technically the DNO is supposed to be informed before switching on but it’s usually straight forward. With G98 it's notification within 30 days after commissioning, so after switching on.
March 5, 20251 yr 21 minutes ago, Dillsue said: With G98 it's notification within 30 days after commissioning, so after switching on. Useful to know We had to go full G99 (G100) as 6.8Kw and limited export to 3.6Kw due to feeble rural power network. Back to the question @CMPW which bit of the notification is causing the query? Edited March 5, 20251 yr by cjsparkey
March 5, 20251 yr Author 40 minutes ago, Dillsue said: With G98 it's notification within 30 days after commissioning, so after switching on. We will be well past (years!) that as it was the previous owners that installed the system.
March 5, 20251 yr Author 25 minutes ago, cjsparkey said: Useful to know We had to go full G99 (G100) as 6.8Kw and limited export to 3.6Kw due to feeble rural power network. Back to the question @CMPW which bit of the notification is causing the query? I think I have realised its because I've ticked "don't know" to the DNO cutout rating. Hoping this will be as simple as calling them up and asking them to confirm what it is. I also thought that I had to complete the G100 export limitation section - but re-reading it I realise I can select no to this.
March 5, 20251 yr 7 hours ago, CMPW said: Has anyone gone through this process that could give me some advice? I when through UKPN G98 as did @Thorfun I think. What was the problem?
March 6, 20251 yr 9 hours ago, CMPW said: I think I have realised its because I've ticked "don't know" to the DNO cutout rating. Hoping this will be as simple as calling them up and asking them to confirm what it is. I also thought that I had to complete the G100 export limitation section - but re-reading it I realise I can select no to this. I don't know what UKPN ask for but the ENA G98 notification that they should be using doesn't ask for the cutout size. Maybe check you're using the correct forms?? The ENA forms are all available on line and it's likely G98 form B you should be using For the export limitation that should be built into a G98 compliant inverter. Are you using an SE3680H inverter or smaller?? Edited March 6, 20251 yr by Dillsue
March 6, 20251 yr Author 52 minutes ago, Dillsue said: I don't know what UKPN ask for but the ENA G98 notification that they should be using doesn't ask for the cutout size. Maybe check you're using the correct forms?? The ENA forms are all available on line and it's likely G98 form B you should be using For the export limitation that should be built into a G98 compliant inverter. Are you using an SE3680H inverter or smaller?? I have an SE3500H (SOETC/02349/V1/A2) I was filling in the details on the smart connect site - but having looked at the G98 Form B (traditional style) it looks a lot simpler. I will give this a go. Thank you @Dillsue.
March 6, 20251 yr 9 hours ago, MikeSharp01 said: I when through UKPN G98 as did @Thorfun I think. What was the problem? G99 for us as we’ve got a 10kWp array
March 6, 20251 yr 12 hours ago, Thorfun said: G99 for us as we’ve got a 10kWp array yes -so Sorry everyone ours was G99, not sure I was think straight yesterday, as well (6kW export Granted on 6kW array)
March 7, 20251 yr Author Under the installer details - would I just put down the details that I have for them even though they are no longer in business (and just leave the signature blank - or just sign in myself!)
March 7, 20251 yr 2 minutes ago, CMPW said: Under the installer details - would I just put down the details that I have for them even though they are no longer in business (and just leave the signature blank - or just sign in myself!) Put the details you know, you can’t sign as the installer but you could scribble not known etc. that would look like a signature.
March 7, 20251 yr You can just be yourself, you don't need to be an installer, they have been instructed to deal with individuals as well as companies. I just told them my name - all worked fine.
March 7, 20251 yr Author Do you think there will be any push back with the install date being so long ago?
March 7, 20251 yr 3 hours ago, CMPW said: Do you think there will be any push back with the install date being so long ago? Nope. They're likely greatful that you've bothered to tell them.
March 13, 20251 yr Author A quick update - I submitted the form on Tuesday and it came back today as approved! Thank you all!
March 13, 20251 yr On 07/03/2025 at 13:53, MikeSharp01 said: You can just be yourself, you don't need to be an installer, they have been instructed to deal with individuals as well as companies. I just told them my name - all worked fine. What did you do where it asks for the installers qualifications/credentials? Im going to do a self install, but im not qualified. (well i was, in 1990 under the 16th edition, but i doubt that counts for much!)
March 13, 20251 yr The industry(power distribution) is all for best practice and asking for installers details/qualifications sort of drives that but reality is your DNO ain't really interested in what goes on the other side of their cutout/fuse. Thats BC's/part P's domain. For a G98 the system is live so the testing/certification horse has already bolted. For G99 you could be submitting months in advance and not know who your installer will be so quite legit to put N/A or N/K.
March 13, 20251 yr 4 minutes ago, Dillsue said: The industry(power distribution) is all for best practice and asking for installers details/qualifications sort of drives that but reality is your DNO ain't really interested in what goes on the other side of their cutout/fuse. Thats BC's/part P's domain. For a G98 the system is live so the testing/certification horse has already bolted. For G99 you could be submitting months in advance and not know who your installer will be so quite legit to put N/A or N/K. Interesting. As i intend to do it myself, im sure they wont accept a blank box though however disinterested they might be.. So i have to put something in that box. Question is what? Ill be doing G98.
March 13, 20251 yr Author 1 hour ago, Roger440 said: What did you do where it asks for the installers qualifications/credentials? Im going to do a self install, but im not qualified. (well i was, in 1990 under the 16th edition, but i doubt that counts for much!) I put the name of the company and then "N/A installer no longer trading" in the signature box and left the date field blank. I guess you could just put "Self Install"
March 14, 20251 yr 8 hours ago, Roger440 said: What did you do where it asks for the installers qualifications/credentials? I don't recall that question on our application, are you using the UKPN online form? I would have said something like this is request for permission to export an appropriate installer will be appointed.
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