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

Mars · 2021-03-16T16:40:26Z

A thread to post your great, not so great and downright awful stats about solar PV production.

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Solar Photovoltaic (PV)

Last Post by Toodles 4 weeks ago

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JulianC

(@julianc)

Noble Member Member

Joined: 5 years ago

Posts: 336

01/08/2025 9:37 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 new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger

👍

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Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2204

01/09/2025 10:11 am

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

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

👍

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NJT

(@njt)

Estimable Member Member

Joined: 1 year ago

Posts: 57

03/09/2025 7:41 pm

6.1 kW system

797 kWh produced Aug 2025

727 kWh produced Aug 2024

This post was modified 2 months ago by NJT

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Andris

(@andris)

Reputable Member Member

Joined: 5 years ago

Posts: 123

03/09/2025 7:53 pm

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)

Estimable Member Member

Joined: 1 year ago

Posts: 51

05/09/2025 9:54 am

@andris a great year - very happy with our system

🤩

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jamespetts

(@jamespetts)

Trusted Member Member

Joined: 12 months ago

Posts: 30

09/09/2025 11:40 am

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)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2204

30/09/2025 6:15 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.

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

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AgentGeorge

(@agentgeorge)

Estimable Member Member

Joined: 9 months ago

Posts: 56

30/09/2025 7:09 pm

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

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Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2204

30/09/2025 9:30 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)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2204

01/10/2025 3:56 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