Navitron Renewable Energy and Sustainability Forum

Energy/Electricity Storage and Use/Grid Connection => Grid-connected Renewables => Topic started by: Ivan on November 16, 2009, 02:00:38 PM



Title: DNO Contacts
Post by: Ivan on November 16, 2009, 02:00:38 PM
http://www.energynetworks.org/engineering/pdfs/DG/DistributorNetworkOperatorContactDetails_071114.pdf


Title: Re: DNO Contacts
Post by: StBarnabas on November 17, 2009, 08:24:24 PM
Ivan
thanks. Strange how the more helpful companies actually give a named person and others give a department where you can be passed from "pillar to posts" and given the around. It will come as no surprise that NEDL is in the latter category. Had I not taken yours and Ted's advice my PV might be sitting in the garage. I went ahead without their consent (not needed under G83/1) and have heard nothing from them  after submitting the paperwork a few months ago.
Sean


Title: Re: DNO Contacts
Post by: ecogeorge on April 20, 2010, 11:16:31 PM
Need to notify DNO before the weekend after ecogeorge towers generating station (pv array) commissioned.
Been on the eon web site and assume I need to fill in the application on the downloads section, but do I fill in the competitive generation application or non - competitive application??  or have I got the wrong form?
rgds George.


Title: Re: DNO Contacts
Post by: StBarnabas on April 21, 2010, 03:59:06 PM
George
PM me and I will send you a copy of the paperwork I used
Sean


Title: Re: DNO Contacts
Post by: GavinA on August 24, 2010, 12:13:56 PM
that link is now borked. I'll post a new one if I can find it, or if anyone else has a link please post it up, thanks.


Title: Re: DNO Contacts
Post by: pcollins on August 24, 2010, 04:51:53 PM
Try this one, although EON/Central Networks one is not correct:

http://www.r-e-a.net/info/other-news/uk-distribution-network-operators-embedded-generation-connection-contacts (http://www.r-e-a.net/info/other-news/uk-distribution-network-operators-embedded-generation-connection-contacts)

Will post the 0800 number if I can find it and you need to ask for their renewable energy department. V helpful if you can get through!


Title: Re: DNO Contacts
Post by: GavinA on August 24, 2010, 07:24:58 PM
Some current names and contact details...

Scotland (SSE / Scottish Hydro) - Jeff Wall: Jeff.wall@SSE.com

SSE's southern england area - Adrian Ellis: adrian.ellis@SSE.com

can you tell I got passed around a bit ending up dealing with their south of england bod for an install in inverness before he very helpfully put me in touch with the right person.


Title: Re: DNO Contacts
Post by: mysterons on August 25, 2010, 09:39:51 AM
Hi there, new member here.
My situation is I'm currently awaiting a new installation date from the Mark Group working on behalf of Tesco having convinced them to reduce the originally quoted 4.2kWp PV system down to 3.96kWp.
I'm worried by this thread, nowhere on the Tesco website or in any of the paperwork from Mark Group that I have received is there any mention of me having to notify my DNO.
Is this something I should be doing or the installers? Or is notification not required under G83/1 as suggested by St Barnabus further up? Is there any chance the DNO would not allow me to connect my new install to the grid for some reason or is it automatically allowed under the reg's?
Hopefully I'm worrying over nothing but perhaps members who have had a PV install grid connected can clue me in.
Ron


Title: Re: DNO Contacts
Post by: GavinA on August 25, 2010, 12:02:11 PM
under 16 amps per phase you don't need to contact them in advance, your installer just has to notify them afterwards.

due to inverter losses etc a 4kWp PV array still just about classes as under 16 amps per phase as by the time it gets to the AC side it's lost 7-10%, plus cable losses etc means it's close enough to the 16amp mark for nobody to quibble. I'm not so sure that 4.2kWp systems wouldn't be pushing this wriggle room a bit far mind.


Title: Re: DNO Contacts
Post by: mysterons on August 25, 2010, 12:31:28 PM
Thanks for that Gavin, sets my mind at rest a bit.
I notice that Mark Group's 3.96kWp quote lists the inverter to be used as an SMA3300. They've sent me a spec sheet and it seems this inverter has a max ac output of 3600w. They'd also quoted the same inverter on the original 4.2kWp system. I suspect that's how they make sure the 16a limit isn't breached whatever the panel output is.


Title: Re: DNO Contacts
Post by: Ivan on July 04, 2011, 01:17:00 AM
A 16A inverter will keep the DNO happy, but if you install 4.2kWp, then you'll end up with a much lower FIT revenue than if you went for 4.0kW or slightly under.


Title: Re: DNO Contacts
Post by: GavinA on July 04, 2011, 01:30:07 AM
A 16A inverter will keep the DNO happy, but if you install 4.2kWp, then you'll end up with a much lower FIT revenue than if you went for 4.0kW or slightly under.
only if the installer does something silly like putting the peak rating of the panels on the form rather than the peak AC output of the system.


Title: Re: DNO Contacts
Post by: jamesingram on July 19, 2011, 08:11:08 PM
Bit confused by that Gavin ? from SSE , FEED IN TARIFF APPLICATION FORM
"Declared Net Capacity (kW): The declared net capacity is the installed capacity (size) of the system you have installed"
I presumed this was the peak panel rating as Ivan suggests , Have I got this wrong , is it the peak inverter rating ?
eg SMA 3800 = 3.8kW even if you've installed say 4.2kWp of panels  wackoold


Title: Re: DNO Contacts
Post by: BruceB on July 19, 2011, 08:24:01 PM
I am pretty certain that most people involved with installing solar panels for the first year of the FIT regime thought that Total Installed Capacity and Declared Net Capacity had something to do the the size of the solar array.  However, if the array is larger than the inverter then it is actually the inverter output that is the relevant figure as that is all that will ever be fed to the grid.  It is clear from reading other forums as well that many installers still have not realised this.  The statutory definitions of TIC and DNC are out there if you have a while to peruse them.  They do take some disentangling though.
Regards
Bruce


Title: Re: DNO Contacts
Post by: jamesingram on July 19, 2011, 09:43:15 PM
Thanks Bruce ,
probably a question better asked on the G83 topic , but could you clear up , some more confusion around this area ?

moved it to G83 thread.
aha http://www.ownergy.co.uk/library/gosple/F2RCAP1d.pdf


Title: Re: DNO Contacts
Post by: GavinA on July 21, 2011, 08:51:48 PM
I concur with Bruce's answer, and have now installed several systems with peak DC ratings of the panels above 4kWp, but max inverter outputs at or below 3680W or 16amps, and all's hunk dory (after a few queries from the DNO resulting in us making the peak inverter output much clearer on the form we submit to avoid confusion).


Title: Re: DNO Contacts
Post by: acresswell on September 22, 2018, 07:44:53 AM
I realise this is an old sticky, but it seems the right place to ask...

Why was the effective limit set at 16A rather than a little higher?

Iíve got a 100A connection, so why can I take 100A but only return 16A?
I recognise that the cables etc arenít set up to provide 100A to every house in an area at the same time (and that many houses have smaller supplies) so if every house was to be generating at 100A that would be an issue, but surely it must be designed to allow every house to take something like 40A simultaneously, so why not allow that figure to be generated?

If it was possible to install 32A of generation without going through an expensive approval process, that could surely reduce the average cost of generation (once youíve got scaffold and installers on site, covering all of a roof with PV rather than 80% of it....).   It could always be set at ďa third of the rated supplyĒ or something like that.

Thanks


Title: Re: DNO Contacts
Post by: rogeriko on September 22, 2018, 03:34:57 PM
The powers that be have to limit renewable generation. This article explains it all.  https://www.technologyreview.com/s/601514/germany-runs-up-against-the-limits-of-renewables/  When the sun is shining and the wind is blowing all those gas and coal power stations are still going full tilt because they cant turn them off. A nuclear plant takes a week to turn on. A coal fired plant takes about 3 days to turn on and the gas generators that we use mostly in the uk take 4 to 8 hours to get going. So when you plug in your kettle at half time for a cup of tea and the sun goes behind a cloud, be thankfull that all those fossil generators are still running.


Title: Re: DNO Contacts
Post by: linesrg on September 22, 2018, 05:28:25 PM
Good Evening All,

The article is two years old and whilst still very relevant ignores the fact that better use needs to be made of excess renewable energy by way of storage and get on with reducing the 'dependence' on fossil fuelled power sources. Very much a chicken and egg situation.

Regards

Richard


Title: Re: DNO Contacts
Post by: kristen on September 23, 2018, 07:43:24 AM
better use needs to be made of excess renewable energy by way of storage and get on with reducing the 'dependence' on fossil fuelled power sources. Very much a chicken and egg situation.

I don't mind the £100M p.a. payment (but it sucks of course ...) provided it is part of some other pump-priming [sorry!] on the road to that endpoint.

Is there some construction / incentivising going on for storage that sees an endpoint to the curtailment of wind?