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Author Topic: DNO Contacts  (Read 29514 times)
GavinA
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« Reply #15 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).
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acresswell
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« Reply #16 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
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rogeriko
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« Reply #17 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.
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linesrg
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« Reply #18 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
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1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
kristen
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« Reply #19 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?
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