Surprise sunshine!

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Stinsy
Posts: 2848
Joined: Wed Jun 02, 2021 1:09 pm

Surprise sunshine!

#1

Post by Stinsy »

I'm sure I didn't see this when I looked at the weather forecast earlier in the week! Cloudless sky, 10AM and I'm struggling to use the power I'm generating.
  • Washing machine on
  • Tumble drier on
  • Dehumidifier on
  • SH in the garden office charging
  • PHEV full to brim
I cannot remember the last time I managed to charge a SH on solar!

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12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
Moxi
Posts: 2265
Joined: Sun Oct 31, 2021 3:46 pm

Re: Surprise sunshine!

#2

Post by Moxi »

I've been waiting for this break in the dull grey layers for two days now, battery stack is desperately needing a lift, so much so I have been contemplating some more panels on the south wall for winter input.

Moxi
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Joeboy
Posts: 8096
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Surprise sunshine!

#3

Post by Joeboy »

Great to read that you are seeing some late Sept bonus sun. While I cannot control the sunshine I can control how far I make it go in the house. Low energy bulbs and machines is the way to go. From losing the 🌞 around 17.00hrs (power not light) we are using about 20% of the stack over the following five hours and hitting the go faster window at around 59% remaining soc most nights. A significant change from when we were two batteries and I had not completed the efficiency runs through the house.

In saying that I found a hole in the kitchen floor leading to subfloor and also two incandescent 40W light bulbs in the cooker hood in the past week. My point is that multiple go's through the house were needed but when we did it the difference was apparent.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
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nowty
Posts: 5790
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Surprise sunshine!

#4

Post by nowty »

I'm importing overnight now, temperatures are dropping, days are shortening, and I returned to the house yesterday with the EV at 12% after a non stop 250 mile journey. I would normally have done a quick splash and dash pitstop but Tesla are now charging 62p / kWh now, so I preferred using the Octopus virtual battery at a price cheaper than the WT1 rebate. 8-)

Zen (EV) is like the cat, hungry and needs feeding. :lol:
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
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Rain water use > 510 m3
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Surprise sunshine!

#5

Post by Oldgreybeard »

nowty wrote: Wed Sep 28, 2022 11:08 am Zen (EV) is like the cat, hungry and needs feeding. :lol:
Charged ours overnight a couple of days ago, almost the first time since March we've paid to charge it, as the forecast was for cloudy weather. What happens? We have a couple of days with plenty of excess to have charged the car. Very frustrating when the official weather guessers get it wrong . . .
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
sharpener
Posts: 430
Joined: Fri May 20, 2022 10:42 am

Re: Surprise sunshine!

#6

Post by sharpener »

What do ppl think of forecasting sites e.g. https://toolkit.solcast.com.au? I have only been using it for the past week but it seems helpful. Is there anything better?
16 x 230W Upsolar panels S Devon, 4kW Steca, 3.9 MWh FITs/yr
8 x 405W Longi panels, 250/60 MPPT, 3.3 MWh/yr
Victron MultiPlus II-GX 48/5000/70-50
10.65 kWh Pylontec Force-L2
zappi 7kW EVCS
Villavent whole-house MVHR
5000l rainwater system
Vaillant 12kW HP
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