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3 Unbalanced Strings - Givenery Hybrid 5kw Invertor
Options

arms
Posts: 18 Forumite

Looking to get at least 6kW of panels.

(N is up btw)
As well as the panels on the roof (everyone suggests 11), I want to put the panels along the single storey side extension and rear extension but there will be shade on some panels that tracks across throughout the day.
I've suggested just putting optimisers on those panels affected but the first quote I'm dealing with initially is advising that the roof could be one string and we could split those on the extension into 2 strings and that would be fine.
I don't understand fully but wouldn't the 2 strings on the extension be limited if any shade as they would be on the same MPPT?


(N is up btw)
I've suggested just putting optimisers on those panels affected but the first quote I'm dealing with initially is advising that the roof could be one string and we could split those on the extension into 2 strings and that would be fine.
I don't understand fully but wouldn't the 2 strings on the extension be limited if any shade as they would be on the same MPPT?
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Comments
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I guess both options would work.
This is what I had done - went with enphase microinverters
https://forums.moneysavingexpert.com/discussion/6286173/roof-orientation-and-panels/p1
“Don't raise your voice, improve your argument." - Desmond Tutu
System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
System 2 - 9.2 KWp + Enphase IQ7+ and IQ8AC (Feb 22 & Sep 24) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump0 -
ispookie666 said:I guess both options would work.
This is what I had done - went with enphase microinverters
https://forums.moneysavingexpert.com/discussion/6286173/roof-orientation-and-panels/p1
N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Ripple Kirk Hill member.
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 34 MWh generated, long-term average 2.6 Os.Not exactly back from my break, but dipping in and out of the forum.Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs, Best kettle!0 -
What’s the difference between optimisers vs micro inverter?
11 of the 16 panels are on main roof and not affected by shade. Only 5 on single storey extension will be.One of the quotes suggested all be solar edge but obviously 10% more expensive.0 -
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@arms plenty of YouTube videos on this topic. One of the major differences is pretty much panel level conversion of DC to AC for micro inverter Vs optimising DC per panel level for optimisers.“Don't raise your voice, improve your argument." - Desmond Tutu
System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
System 2 - 9.2 KWp + Enphase IQ7+ and IQ8AC (Feb 22 & Sep 24) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump1 -
arms said:What’s the difference between optimisers vs micro inverter?
https://www.thesolarnerd.com/blog/microinverters-vs-power-optimizers-brands-compared
N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Ripple Kirk Hill member.
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 34 MWh generated, long-term average 2.6 Os.Not exactly back from my break, but dipping in and out of the forum.Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs, Best kettle!1 -
My preferred is to have 11 panels on roof on one string and then stick 5 panels on extension on 2nd string with Togo optimisers.
My issue was first person who quoted said that I could put the 11 on panels on 1 string, and then split the other 5 into a second and third string with no optimisers as only 1 of the 2 will be in shade each part of the day. I thought that was wrong as givenergy hybrid is dual MPPT.0
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