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

 
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Solar Photovoltaic (PV)
Last Post by Papahuhu 2 weeks ago
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JulianC
 JulianC
(@julianc)
Honorable Member Member
Joined: 6 years ago
Posts: 336
01/08/2025 10:37 pm  

We had an excellent four months (11/3 to 15/7) generating 2037kWh from our 4kW system. After 13 years. Paid £1559.60 on the FiT. Amazing. 
‘Twas a very good investment. 


Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Volvo EX30 Ultra Twin Performance electric vehicles with Myenergi Zappi mk1 & Ohme chargers


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3002
01/09/2025 11:11 am  

@julianc Our solar PV has produced more this August than either 2023 or 2024 - long may the increases continue! Regards, Toodles.

IMG 6618
IMG 6620
IMG 6619

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


   
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 NJT
(@njt)
Trusted Member Member
Joined: 2 years ago
Posts: 59
03/09/2025 8:41 pm  

6.1 kW system

797 kWh produced Aug 2025

 

727 kWh produced Aug 2024

 



   
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 Andris
(@andris)
Estimable Member Member
Joined: 6 years ago
Posts: 135
03/09/2025 8:53 pm  
Screenshot 20250903 204817 mySolarEdge

1040kw Even beat June and July. Great month.


16kw Samsung TDM ASHP. 8.4kw PV, power optimizers 20×420watt panels 6kw SolarEdge inverter.


   
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Profzarkov
 Profzarkov
(@profzarkov)
Trusted Member Member
Joined: 2 years ago
Posts: 69
05/09/2025 10:54 am  

@andris a great year - very happy with our system

Screenshot 2025 09 05 105402


   
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 jamespetts
(@jamespetts)
Eminent Member Member
Joined: 2 years ago
Posts: 31
09/09/2025 12:40 pm  

My system installed in July 2024 has produced 6.4mWh in 2025 so far and produced 2.2mWh in 2024. Details on my Enphase public page here: https://enlighten.enphaseenergy.com/web/uXk45334506/today/graph/months?public=1

 



   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3002
30/09/2025 7:15 pm  

@jamespetts Best out of 3! The last 3 September yields: This years is the best yet; I hope the trend will continue next year!😊 Regards, Toodles.

IMG 6655
IMG 6658
IMG 6656

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


   
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 AgentGeorge
(@agentgeorge)
Reputable Member Member
Joined: 2 years ago
Posts: 194
30/09/2025 8:09 pm  

How do you explain the house usage in 2024 was very low compared to other 2 Septembers



   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3002
30/09/2025 10:30 pm  

@agentgeorge err… Pass! I dunno what caused that! I’ll have to give it some thought. Puzzled Toodles.


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


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3002
01/10/2025 4:56 pm  

I have puzzled over those home consumption figures and though I can’t now recall the ratios of arbitrage for the various price changes over these 3 years nearly, I can only conclude (without peering through all the energy bills to determine the costs per kWh for those different time periods - and my eyesight would be knocked out for the day doing so) that different rates that I would have set in the Tesla app dictated where the solar energy was sent daily. The other factor being that there may well have been some of OE’s ‘savings days’ or whatever that influenced the figures. Sorry not to be more informative on historical information; memory ain’t wot it wos, (did I mention I am 78?😉). Anyway, in case it is of any help to throw some light on the subject, here are the Tesla bar charts over the period

IMG 6661
IMG 6660
IMG 6659

of which I speak. Regards, Toodles.


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


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3002
01/10/2025 5:15 pm  

Further, these bar charts may throw a few more lumens on the matter… Regards, Toodles.

IMG 6664
IMG 6665
IMG 6663

 


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


   
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 AllyFish
(@allyfish)
Prominent Member Contributor
Joined: 4 years ago
Posts: 520
30/10/2025 2:34 pm  

2025 - now a record year of Solar PV Generation. October 30th any our Solar PV generation has exceeded 3740kWh, our previous yearly record in 2023 for a 9 panel 3.6kW array and well in excess of the installers estimated annual output of 3255kWh. Testament to the dry summer season. Just about £1000 of self-generation at this year's current energy price cap tariff 🙂



   
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