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Power/Renewable Energy/EV's / Re: Solar Upgrade AGAIN
« Last post by EEVblog on Today at 07:32:06 am »Ok, so the solar upgrade IS happening in the next few weeks. Indeed it MUST happen.
Those in the supporters section know why.
Complete re-install of all panels.
I have two options, both of them involve buying at least 4 new panels + Enphase IQ8AC microinveretrs.
1) Go completely Enphase and replace all old 250W panels with new ones.
Costs about $7135 and gives me 8.88kW peak
Requires a 3rd Enphase IQ relay circuit which I don't have room in the box for, so small extra charge to add that.
2) Continue Enphase/String mix and reuse old 250W panels on the 3kW Sunnyboy inverter. Plus minor update to Enphase (4 extra panels)
Costs about $2760 and gives me 8.6kW peak
I could go zero extra cost and just replace everything I already have (14 enphase + 12 string), but I can fit 2 rows of 9 panels on the west side roof, so makes sense to expand the 14 panels I already have to 18 just to fill that side of the roof.
I could fit a few more on the east side roof, and if so I'd buy some more Enphase as I have some extra current capacity on the existing IQ relays.
So it seems like a no-brainer to reuse the old 12 x 250W panel and Sunnyboy inverter?
In either case I haven't included the install cost which is roughly the same for either solution.
Those in the supporters section know why.
Complete re-install of all panels.
I have two options, both of them involve buying at least 4 new panels + Enphase IQ8AC microinveretrs.
1) Go completely Enphase and replace all old 250W panels with new ones.
Costs about $7135 and gives me 8.88kW peak
Requires a 3rd Enphase IQ relay circuit which I don't have room in the box for, so small extra charge to add that.
2) Continue Enphase/String mix and reuse old 250W panels on the 3kW Sunnyboy inverter. Plus minor update to Enphase (4 extra panels)
Costs about $2760 and gives me 8.6kW peak
I could go zero extra cost and just replace everything I already have (14 enphase + 12 string), but I can fit 2 rows of 9 panels on the west side roof, so makes sense to expand the 14 panels I already have to 18 just to fill that side of the roof.
I could fit a few more on the east side roof, and if so I'd buy some more Enphase as I have some extra current capacity on the existing IQ relays.
So it seems like a no-brainer to reuse the old 12 x 250W panel and Sunnyboy inverter?
In either case I haven't included the install cost which is roughly the same for either solution.