Central heating

Air source, ground source and associated systems for heating homes
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Joeboy
Posts: 8207
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Central heating

#31

Post by Joeboy »

Joeboy wrote: Fri Nov 04, 2022 12:56 pm
Fintray wrote: Fri Nov 04, 2022 10:30 am
Joeboy wrote: Fri Nov 04, 2022 7:38 am Feck!

Image
Better get used to it! :lol:
Trying! :D
As an aside, our arrival back home electric consumption was a peak of 80kWh through the charge window. It took a lot to bring the building up to temperature. Since then (1 week) we have dropped back to 60kWh per charge window as I've tweaked the SH's and battery has settled out. I am quite happy with that result. No Nov Octopus competitions though?
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
7kW ASHP
200ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit trees
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Central heating

#32

Post by Oldgreybeard »

Our overnight consumption is usually around 5kWh to 6kWh, unless (like last night) I top up the car (last night we used 11.6kWh). That's charging the battery to 75%, if it needs it (last night it didn't, thanks to all the sun yesterday morning, which also heated the hot water).

Heating still not come on here, yet, house is at 21.6°C this morning, though, so we came pretty close to it coming on last night. Can't be long before the heating fires up for the first time, and when it does it will just about double our normal (non-car charging) overnight consumption.
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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Stinsy
Posts: 2951
Joined: Wed Jun 02, 2021 1:09 pm

Re: Central heating

#33

Post by Stinsy »

Joeboy wrote: Thu Nov 10, 2022 8:20 am No Nov Octopus competitions though?
I heard that Octopus gave away a free "Power Hour" on Tuesday to select customers not me though. And I'm also not on the get-rewarded-for-using-less-peak-electric thing either.
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.)
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Joeboy
Posts: 8207
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Central heating

#34

Post by Joeboy »

Stinsy wrote: Thu Nov 10, 2022 12:06 pm
Joeboy wrote: Thu Nov 10, 2022 8:20 am No Nov Octopus competitions though?
I heard that Octopus gave away a free "Power Hour" on Tuesday to select customers not me though. And I'm also not on the get-rewarded-for-using-less-peak-electric thing either.
Boo hiss! :(
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
7kW ASHP
200ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit trees
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nowty
Posts: 5893
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Central heating

#35

Post by nowty »

Joeboy wrote: Thu Nov 10, 2022 12:21 pm
Stinsy wrote: Thu Nov 10, 2022 12:06 pm
Joeboy wrote: Thu Nov 10, 2022 8:20 am No Nov Octopus competitions though?
I heard that Octopus gave away a free "Power Hour" on Tuesday to select customers not me though. And I'm also not on the get-rewarded-for-using-less-peak-electric thing either.
Boo hiss! :(
I missed out on the power hour too. :evil:
https://octopus.energy/powerhour/
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 27MWh generated
6 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Moxi
Posts: 2329
Joined: Sun Oct 31, 2021 3:46 pm

Re: Central heating

#36

Post by Moxi »

Do you think it is possible that they (NG and suppliers) are starting to target their audience to incentivise the "average" consumer and thereby omitting "engaged and aware" customers from the rewards package?

I would presume that it's very easy for the suppliers to assess smart meter readings and pick out the heavy users at the peak times to target them to change their behaviours for a reward?

Moxi
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Stinsy
Posts: 2951
Joined: Wed Jun 02, 2021 1:09 pm

Re: Central heating

#37

Post by Stinsy »

Moxi wrote: Thu Nov 10, 2022 2:06 pm Do you think it is possible that they (NG and suppliers) are starting to target their audience to incentivise the "average" consumer and thereby omitting "engaged and aware" customers from the rewards package?

I would presume that it's very easy for the suppliers to assess smart meter readings and pick out the heavy users at the peak times to target them to change their behaviours for a reward?

Moxi
Basically it is like those schemes where schools give naughty kids expensive electronic goods for being slightly less naughty, while the kinds who are always good get nothing!
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.)
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nowty
Posts: 5893
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Central heating

#38

Post by nowty »

Moxi wrote: Thu Nov 10, 2022 2:06 pm Do you think it is possible that they (NG and suppliers) are starting to target their audience to incentivise the "average" consumer and thereby omitting "engaged and aware" customers from the rewards package?

I would presume that it's very easy for the suppliers to assess smart meter readings and pick out the heavy users at the peak times to target them to change their behaviours for a reward?

Moxi
Thats pretty much what Octopus are doing with their flavour of the National Grid incentive.
https://octopus.energy/saving-sessions/
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 27MWh generated
6 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Central heating

#39

Post by Oldgreybeard »

A momentous day, the heating came on for the first time for a few hours last night. Made for a very high level of consumption overnight, just over 16kWh, although about 7.5kWh of that was the battery re-charging, as yesterday we only generated about 2kWh in total. The heat pump drew an average power of about 800W for just over 6 hours, so a bit under 5kWh in total, and more than we need in terms of stored heat (this always happens at the start of the heating season until it settles down). The house is a bit toasty this morning, so in all probability the heat pump won't come on again for a few days, as the floor slab is now sitting at 23.3°C and it's turned mild again, 14.5°C outside this morning.
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
MrPablo
Posts: 284
Joined: Mon Oct 17, 2022 1:26 pm

Re: Central heating

#40

Post by MrPablo »

Impressively low level of energy usage considering the heat will last you several days. A testament to the house construction!
10x 405W JA Solar panels (4.05kWp) @ 5 degrees
3x 405W Longi panels (1.22kWp) @ 90 degrees
16.5kWh DIY LifePo4 battery
Solis inverter/charger
0.6kW Ripple WT
64kWh Kia E-Niro
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