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Last seen: Sep 10, 2026
Yes. Your inverter has two independent PV inputs.Each one is rated at 550v 13.3A maximum whilst operating in MPPT mode.So, for example, you could have...
I'm struggling to follow that.I need units 😉 So you have 6 Canadian Solar panels, each rated at 425w and connected in SERIES to one of the ...
The problem with the maths is that you're starting with two different types of panel. I proposed (purely as an example) 425w panels manufactured by ...
@david999 we did the calculations for the number of panels you could connect earlier in this topic here. It depends on the rating of the panels, so ...
In conversations with engineers in the UK electricity supply network, they use the term 'off-grid' when the 240v AC is not synchronised to the 50Hz of...
Yes, I agree that my terminology doesn't embrace 'off-grid' in the way that it would be perceived by a crofter in Scotland, for example. I'm suggest...
Realistic in terms of price?Or because of practical arrangements to have a storage battery installed? The financial viability depends on what you're...
Indeed! We should be primarily considering the off-grid route. The topic DIY solar upgrade - Considering adding more panels is actively exploring th...
Yes, I agree that cables from PV panels offer a flexibility which cannot be matched by the insulated pipework required for a solar-thermal array. Ov...
🤗 If @david999 wasn't so far away, I'd be introducing him to my welder and watching how he welds aluminium.Yes, I clean it with alcohol, but ...
To pull the UK towards Net Zero and reduce energy bills, we really need a more wide-ranging skill set than you'd obtain from a course aimed at a singl...
Choice of Battery Management System: If the option was there, I'm quite attracted by the BMS unit which Fogstar have selected for use in the enclosu...
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Latest Posts
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RE: Siting of the external sensor on a heatpump
I think not but have now added the cloud coverage weath...
By Batpred , 4 hours ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
@judith Thanks very much for this! My room by room calc...
By jon , 8 hours ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
I think that is outrageous even if I suspect not unique...
By Batpred , 9 hours ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 12 hours ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 18 hours ago
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RE: Adventures in heat loss calculations
Posted by: @jamespa At this point its probably worth...
By Rob of York , 20 hours ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 1 day ago
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RE: Tell us about your Solar (PV) setup
We have a 6.56kW solar PV system (16x 410W panels) inst...
By Rob of York , 1 day ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay @jamespa I've managed to get some nice re...
By Rob of York , 3 days ago
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RE: 7kW EV Charger Options Advice
Doh, not sure that I was thinking straight there, less ...
By Rusty , 3 days ago
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Thank you @trebor12345
By rgabor , 3 days ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Great. You just need to find a way of cranking up your...
By JamesPa , 3 days ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
We had two heat pumps installed without Govt funding. H...
By Rob of York , 3 days ago
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