Deep joy and bliss!

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Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Deep joy and bliss!

#1

Post by Oldgreybeard »

Forecast here is for bright sunshine all day tomorrow, and ofr the whole time that our PV array gets any sun (roughly 10am to 2:30pm qt this time of year, because of the local horizon over the opposite side of our valley). With luck it may be the first day in a while where the battery gets topped up for free and we get a free hot water charge.

Mind you, it's well below freezing right now, and forecast to drop to -5 deg by the early hours, so it may take some time for the frost to melt from the panels, and right now the heat pump is running flat out at around 800W pumping heat into the floor, using battery power from last night, still.

Looking forward to not having to reply so much on grid power, though, with luck we might get away with only importing around 5kWh tomorrow night, rather than the ~20kWh we have been importing for the past couple of nights.
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
NikoV6
Posts: 218
Joined: Thu Aug 11, 2022 6:42 am

Re: Deep joy and bliss!

#2

Post by NikoV6 »

Was bright sunshine here all day yesterday too, generated 18.4kw but used 29.2Kw :x

ASHP trying to keep 1850 welsh cottage warm at about 1.5 - 3kw an hour!

Looks like we may have another sunny one today though :mrgreen:
14Kw Mitsubishi Ecodan ASHP
22 x JA Solar 455W Mono Perc Half Cell Silvers
Solis 8.0Kw 5G Dual MPPT Inverter
13.5Kw Tesla Powerwall
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pudding
Posts: 98
Joined: Sat Mar 26, 2022 7:01 pm
Location: Cornwall

Re: Deep joy and bliss!

#3

Post by pudding »

Thank god for that, will take the edge off the bill. Had our most use yesterday of the year of just under 40kWh :( Nice big fire last night in the log burner which we didn't have the evening before, has already meant our GSHP didn't have to work as hard this morning to get the house temps back up, so that combined with the sunshine today and hopefully back under 30kWh easily today.
4kW array w/Fronius | 3.51kW & 3.28kW arrays w/Sunsynk 3.6kW hybrid | 6 x Pylon US3000C
8kW GSHP/MVHR/5kW A2A HP/ Ripple- KH & DW & P4 on the way :D
Moxi
Posts: 2265
Joined: Sun Oct 31, 2021 3:46 pm

Re: Deep joy and bliss!

#4

Post by Moxi »

NikoV6

Where abouts are you roughly? we have an 1890's cottage in Gwynedd and are 300m above sea level just south of Caernarfon looking over the bae with the Llyn to the south and Mon to the North, on a clear day we can see the Cork mountains 56 miles away over the Irish sea.

Sun hasn't arrived yet but theres a clear sky and a promising glow starting to appear behind Wyddfa (Snowden)

Moxi
NikoV6
Posts: 218
Joined: Thu Aug 11, 2022 6:42 am

Re: Deep joy and bliss!

#5

Post by NikoV6 »

Moxi wrote: Thu Dec 15, 2022 8:17 am NikoV6

Where abouts are you roughly? we have an 1890's cottage in Gwynedd and are 300m above sea level just south of Caernarfon looking over the bae with the Llyn to the south and Mon to the North, on a clear day we can see the Cork mountains 56 miles away over the Irish sea.

Sun hasn't arrived yet but theres a clear sky and a promising glow starting to appear behind Wyddfa (Snowden)

Moxi
We are at about 220m south facing and have a cracking view down the valley to llansantffraed, we can see Rodney's pillar (oh err mrs) and criggion quarry and on a good day Shrewsbury :D
14Kw Mitsubishi Ecodan ASHP
22 x JA Solar 455W Mono Perc Half Cell Silvers
Solis 8.0Kw 5G Dual MPPT Inverter
13.5Kw Tesla Powerwall
Zappi 2 Charger
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Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Deep joy and bliss!

#6

Post by Oldgreybeard »

2.3kW of generation and climbing, pretty much perfect PV conditions, still -3°C outside, panels are very cold but now clear and the sun's slowly coming around to be face on to them by around 2pm. Almost certainly going to be the best day of the month for generation so far, might even have some spare to put into the car later.
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
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nowty
Posts: 5790
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Deep joy and bliss!

#7

Post by nowty »

More power from solar coming in today than required by the house including the GSHP heating in mid December. :mrgreen:
Storage heaters boosted overnight and EV finally up to 80% even with the bonus 3hrs extra on Monday.

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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
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
NikoV6
Posts: 218
Joined: Thu Aug 11, 2022 6:42 am

Re: Deep joy and bliss!

#8

Post by NikoV6 »

Good day today, even like this first thing we're doing 2.5kw!
20.3kw total generation

Image
14Kw Mitsubishi Ecodan ASHP
22 x JA Solar 455W Mono Perc Half Cell Silvers
Solis 8.0Kw 5G Dual MPPT Inverter
13.5Kw Tesla Powerwall
Zappi 2 Charger
iBoost
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Deep joy and bliss!

#9

Post by Oldgreybeard »

Going to be good here again tomorrow, although the forecast is for it to get down to -5°C again overnight. Temperature here is plummeting, I walked back from the village about half an hour ago and it's freezing hard, not helped by a burst water pipe that's created about a 4 inch thick layer of ice over the lane (this will be the water main that Wessex Water deny all knowledge of).

It's already -2°C outside, but I think we may well get away without the heating, as the house is sat at at a slightly too warm 24°C at the moment, due to my over-enthusiastic use of the excess PV generation to run the heat pump earlier and put too much heat into the floor. I hate it when this happens, as it usually takes a couple of days for the house to stabilise back at the 21.5°C to 22°C that we like to keep it at.

Another nasty side effect is that the RH has dropped - right now it's 28% indoors and we've both had dry eyes and stuffy noses, and I had a nosebleed earlier. I've ordered some bits to make a humidifier to fit into the MVHR fresh air ducting (on the room supply side), plus a stand alone humidifier as an interim to see if that get's the humidity back to a comfortable level. We have bowls of warm water around, with towels draped into them,, to try and get the humidity back up, but they aren't having much effect yet. I think the humidity problem is the combination of the long spell of cold weather condensing out the moisture in the air as frost, plus the added drying effect of the MVHR, especially when we've been running the MVHR heat pump.
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
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