March 2025 appears to be ending like it began - with a spell of great sunny weather here in the West Country.
There has been so much solar this March that I've just exceeded April 2024's total generation and still half a day to go!
Exceptionally sunny March '25
W
Indeed!
Beaten May '24, Jul '24, pretty much matched Aug '24, and pretty close to Jun '24
This is even with us losing 2 half days with building works and power switched off.
Pick your power plot....
G
Likewise results for me, March this year beating last March and almost matching April 2024. And a country mile better than the results from 2023 which must have been a bad spring:
- March 2025 generation 1059kWh
- March 2024 791kWh
- April 2024 1196kWh
- May 2024 1391kWh
- March 2023 521kWh
- April 2023 991kWh
- May 2023 1091kWh
GivCowes1 5.180kW
Month Generated Efficiency
Mar 25 584.200kWh 3.638kWh/kW
Feb 25 219.300kWh 1.512kWh/kW
Jan 25 164.100kWh 1.022kWh/kW
Dec 24 76.500kWh 0.476kWh/kW
Nov 24 152.900kWh 0.984kWh/kW
Oct 24 307.900kWh 1.917kWh/kW
Sep 24 441.800kWh 2.843kWh/kW
Aug 24 663.200kWh 4.130kWh/kW
Jul 24 670.900kWh 4.178kWh/kW
Jun 24 830.590kWh 5.345kWh/kW
May 24 690.600kWh 4.301kWh/kW
Apr 24 552.400kWh 3.555kWh/kW
Mar 24 405.700kWh 2.526kWh/kW
Same down south too.
T
Needed as Jan & Feb were quite poor
We have 5.2kWh of panels facing SE, and 3.8kWh of panels facing NW. Now that's March, the NW panels have been contributing to the totals again.
R
Rather skews my year or year comparisons but who worries with the savings. Cloudy right now, just a tiny patch of blue trying to peak through.
S
My SolarEdge panels/inverter
S
Are there any good downloadable spreadsheets from anywhere that can be used for recording solar produced, exported power etc. or have people done their own thing? I’m coming up to end of my first year of having GivEnergy kit so would like to start. I’ve got Home Assistant and GivTCP to help extract data.
S
Are there any good downloadable spreadsheets from anywhere that can be used for recording solar produced, exported power etc. or have people done their own thing? I’m coming up to end of my first year of having GivEnergy kit so would like to start. I’ve got Home Assistant and GivTCP to help extract data.
T
There's a website that you can use via an API if you have home assistant or similar smart tech?
Pvoutput.org I think it is.
S
G
TX200 quite a few of us send our data to pv output.org, there are HA automations to do this
but @SteveClubley most of us have our own spreadsheets to track what we are interested in.
Mine looks like this:
I track monthly generation, load, import, export, £ and kWh, then payback against the original installation cost and comparison to SVT
A
Yes I'm really pleased here in the South too with high solar generation for March (but cold nights, ASHP still working hard!)
March 2025 695 KWh which beats our August 2024 generation!
I'm just coming up to a year with our panels and our net Electricity Cost (inc standing charge) for the year so far is just £49.50. 14 x 430 watt panels, 6kW system. 5kW inverter. 9.5kWh battery. Just trying to work out when to come off Cosy Octopus and switch back to Octopus Flux.
G
Ange I would be doubtful of going to Flux this year
the ONLY advantage to Flux is the higher peak rate export, and that’s only an advantage for the kWh you can export as long as you don’t have to import anything on the evening or overnight rates before the start of the next solar day. If you plan to import overnight then the benefits disappear
PLUS Flux day time export rate is 10.11p (in my Eastern area) vs 15p fixed rate on Cosy or any other tariff so you’re losing out there as well
I’m planning on going back to Agile but only when the rates drop back down, otherwise I will stick on Cosy and just not import overnight. The 16.4p Flux overnight rate is more than the 14.14p Cosy cheap rate as well.
L
geoffreycoan For me Flux is beating agile at the moment. But think I'll go onto intelligent flux now (no ev or heat pump). I know you can't get on with two inverters.
W
Ange
Exactly the same system as us.
14 *430W panels, 5kW hybrid and 9.5kWh battery.
We switched from COSY to Intelligent Flux on March 17th (we were a bit late really and the profit crossover point is when you generate the same as you use) between these 2 tariffs.
We are 342 days into our solar/battery journey, and just about to hit 6MWh generated this week.
G
Leeshore Yeah Intelligent Flux is a better option if you have a decent array size and only 1 inverter. I tried in vain to enrol last year but the Octopus system couldn’t handle my setup - despite the website indicating it would, with the limitation that only 1 inverter could be controlled.
When I went to Cosy there was no proof asked for that I had a heat pump. Others on EV tariffs have said similar.
But to be honest I’m not needing to export anything at the moment, only 4 kWh in the last 3 days and 97kWh exported. The only advantage of Agile is to be able to import and then export on lower rates overnight. The Agile rates look to have started dropping (11.5p overnight low tonight) so will keep looking
W
This is my IOF net figures for the last week.
and 1st April breakdown:
