We’d like to remind Forumites to please avoid political debate on the Forum.
This is to keep it a safe and useful space for MoneySaving discussions. Threads that are – or become – political in nature may be removed in line with the Forum’s rules. Thank you for your understanding.
The MSE Forum Team would like to wish you all a very Happy New Year. However, we know this time of year can be difficult for some. If you're struggling during the festive period, here's a list of organisations that might be able to help
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!
Has MSE helped you to save or reclaim money this year? Share your 2025 MoneySaving success stories!
Renewables: "talking 'bout my generation"
Comments
-
Some kind of mini water wheel in the gutter downpipes to generate electricity maybe?Barnsley, South Yorkshire
Solar PV 5.25kWp SW facing (14 x 375) installed Mar 22
Lux 3.6kw hybrid inverter and 9.6kw Pylontech batteries
Daikin 8kW ASHP installed Jan 25
Octopus Cosy/Fixed Outgoing2 -
0.95 O's here yesterday🤷🏻♂️16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch. Minimal shade. Nov 2011 install. Hybrid car. Ripple Kirk Hill. N.E Lincs Coast.3
-
I like that idea. I might have to do some research into how small water wheels can go! (From what I've previously read, I think even electrically small ones are physically quite big.Alnat1 said:Some kind of mini water wheel in the gutter downpipes to generate electricity maybe?4.3kW PV, 3.6kW inverter. Octopus Agile import, gas Tracker. Zoe. Ripple x 3. Cheshire1 -
A roof area of 100 sq metres is well above average and typical rainfall in most of UK is less than 1 metre. Absolute maximum amount of rain you might expect to fall on a single roof is therefore100 cu metres / year. Ten metres is rather higher than most gutters. Hence a generous estimate of the potential energy of a year's worth of rain dropping from gutter to ground level would be 1000 metre-tonnes (or 1 000 000 meter kilogram-force ).70sbudgie said:
I like that idea. I might have to do some research into how small water wheels can go! (From what I've previously read, I think even electrically small ones are physically quite big.Alnat1 said:Some kind of mini water wheel in the gutter downpipes to generate electricity maybe?
An online energy conversion webpage I found at https://www.onlineconversion.com/energy.htm suggests that might yield 2.7kWh of generation (if you could find a 100% efficient turbine !) worth perhaps £1 per year.NE Derbyshire.4kWp S Facing 17.5deg slope (dormer roof).24kWh of Pylontech batteries with Lux controller BEV : Hyundai Ioniq54 -
The weather has been so bad with rain, rain (and rain), so far in Jan, that I expected awful results, but forgot just how poor E/W panels are at this time ..... so 9 days in, a remarkable 101% projection for the month.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 28kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.5 -
105% for the first 9 days but that will drop to 100% today.Martyn1981 said:The weather has been so bad with rain, rain (and rain), so far in Jan, that I expected awful results, but forgot just how poor E/W panels are at this time ..... so 9 days in, a remarkable 101% projection for the month.4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North LincsInstalled June 2013 - PVGIS = 3400Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh4 -
Nearly 4 hrs of actual generation today has so far produced 111.38 Wh

Best panel 17.75 Wh and worst 4.5 Wh3.795 kWp Solar PV System. Capital of the Wolds3 -
Any plans on how you’re going to spend the 2p.Merlin139 said:Nearly 4 hrs of actual generation today has so far produced 111.38 Wh
Best panel 17.75 Wh and worst 4.5 Wh
4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North LincsInstalled June 2013 - PVGIS = 3400Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh3 -
Pretty grim here too, 0.083 O's, thank goodness wind is taking up the slack.
East coast, lat 51.97. 8.26kw SSE, 23° pitch + 0.59kw WSW vertical. Nissan Leaf plus Zappi charger and 2 x ASHP's. Givenergy 8.2 & 9.5 kWh batts, 2 x 3 kW ac inverters. Indra V2H . CoCharger Host, Interest in Ripple Energy & Abundance.4 -
Second zero of the month today

Correction: last one was 31 December so not quite!2kWp Solar PV - 10*200W Kioto, SMA Sunny Boy 2000HF, SSE facing, some shading in winter, 37° pitch, installed Jun-2011, inverter replaced Sep-2017 AND Feb-2022.3
Confirm your email address to Create Threads and Reply
Categories
- All Categories
- 353K Banking & Borrowing
- 253.9K Reduce Debt & Boost Income
- 454.8K Spending & Discounts
- 246K Work, Benefits & Business
- 602.1K Mortgages, Homes & Bills
- 177.8K Life & Family
- 260K Travel & Transport
- 1.5M Hobbies & Leisure
- 16K Discuss & Feedback
- 37.7K Read-Only Boards


