Discuss SSE DNO 4kw Solar Panels with battery storage, zero export in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
Hi,are you at present,tied to a contract/tariff,for your existing panels?
If you're claiming FiT for the original installation, are you planning to run the new panels thru the same generation meter? If so, you need to tell your FiT provider. The new panels won't be eligible for FiTs so the output will be divided up pro-rata.
The original inverter is probably sized for a 2kW system. You could upgrade to a 16A capped hybrid inverter and add another 3kW (not 2 kW) of panels (roofspace permitting).
If you plan to keep things separate, to keep within G83 (G98) regs, you'd better stick to a 1.5 kW inverter (whilst retaining the original inverter).
........I think the question of whether it is allowed or not is answered as I spoke to my DNO just now and I have explained what I want to do. They have confirmed that if I keep the PV panels total under 3.68kw, it can be approved under Fast Track G83.....
When I read your first post, I thought I understood what you wanted to do, as it sounded like the same setup that I've been pondering for some time. However... now I don't get it... what does the DNO have to do with it ? Why is there a limit ?
I thought your system would involve PV panels that provided power to be used immediately or if there was surplus power, to re-charge your batteries. Then, when there was insufficient PV power (the evenings say), you could use your stored power from the batteries. Depending on your usage, battery capacity and PV output, there may be a shortfall... this would be made up with power from the grid.
How is your proposal different to the above ?
From my research, even with using the cheapest options available and engineering the whole solution myself... using 'todays money' and assuming no increase in the cost of domestic electricity, the payback is almost 20 years ! The only way this setup works financially is if there's a rapid increase in the cost of electricity... which may well be on the cards if the government's plan comes to fruition... i.e. We all use electric cars and no there's no gas supply at home...
Reply to SSE DNO 4kw Solar Panels with battery storage, zero export in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
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