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[Sticky] Solar Power Output – Let’s Compare Generation Figures

 
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Solar Photovoltaic (PV)
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 Old_Scientist
(@old_scientist)
Reputable Member Member
Joined: 10 months ago
Posts: 151
14/04/2025 1:14 am  

Posted by: @transparent
↑

Posted by: @old_scientist
↑

I have an Emlite ECA2 MID-approved meter fitted which records solar generation

I've looked up what that is.
It must be on the AC output of your inverter.

Having such a MID certified meter is a requirement for exporting to the grid.

But a meter on the inverter output would not have spotted the problem I'd discovered.
It only records what the inverter has successfully handled.

Right, got you.

 

Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 3.645kWp solar (south facing), Fox ESS inverter.
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 3 years ago
Posts: 1903
14/04/2025 10:37 am  

@old_scientist As another example of errors / differences of opinion on amount of juice produced, here is my Emlite meter and also the figutes from the Enphase software and both were commissioned on the same day. Regards, Toodles.

IMG 1192
IMG 6386

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 4 years ago
Posts: 3142
Topic starter 16/04/2025 3:41 pm  

Posted by: @tim441
↑

@andris I'll blame you for the clouds for next 2 weeks!

It's time to start pointing that finger. It's been bloody cold, gloomy and rainy!

 

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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 3 years ago
Posts: 1903
16/04/2025 3:54 pm  

@editor Just when our heat pump was starting to plan its’ holidays … 🙁

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Noble Member Moderator
Joined: 3 years ago
Posts: 779
16/04/2025 3:57 pm  

Posted by: @editor
↑

Posted by: @tim441
↑

@andris I'll blame you for the clouds for next 2 weeks!

It's time to start pointing that finger. It's been bloody cold, gloomy and rainy!

 

And for those of us without an automatic irrigation system that translates into "didn't have to water the garden". That's a lot of silver lining to them thar clouds.

 

105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs

"Semper in excretia; sumus solum profundum variat"


   
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