AGT wrote: ↑Thu Dec 15, 2022 5:44 pm
Grabbed 2 dimplex XL12 heaters today, so that’s good and got a confirmed date for the smart meter install of mid January so things are progressing
Nicely done, 1.5kW per unit. Reading this is pretty much where I was last WInter incl the smart meter. Temperatures have backed off a bit but there was a dip for a couple of nights when the SH's & WBS were not enough to be where we like it. Instead I shut a few SH's down and went to GCH for a quick blast up of the home temp. The extra power I freed up by shutting off some SH's and the immersion element in the HWT went instead to charge the EV at a higher rate.
For this example reason alone and if even only for a couple of days per year i'll be keeping the gas for flexibility and also playing off use & price per kWh of the fuels. I hope to maybe see a photo of your installs when complete AGT?
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
Its a bit like PV, you need more capacity than you normally need if that makes sense.
My 3rd larger storage heater was bought ONLY for freezing temps and last year never got used but this winter its been on full cheapslot boost for the last couple of weeks. And when all storage heaters and home battery chargers are going, there aint much headroom for EV charging.
17.5kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh 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
nowty wrote: ↑Thu Dec 15, 2022 6:09 pm
Its a bit like PV, you need more capacity than you normally need if that makes sense.
My 3rd larger storage heater was bought ONLY for freezing temps and last year never got used but this winter its been on full cheapslot boost for the last couple of weeks. And when all storage heaters and home battery chargers are going, there aint much headroom for EV charging.
I consider this to be a first real cold soak test of all the systems working together. Summers etc is a piece of piss, the real meats here in Aberdeenshire now.
I'm -10 deg self certified, where's my T-shirt?
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
AGT wrote: ↑Thu Dec 15, 2022 7:58 pm
Yes, photos in due course, not got a location for the 2 I picked up today, but they were free and only 2 miles away so….
That's a good price.
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
Yes, just keeping an eye on the local area.
Been looking at energy monitoring switching devices, like Shelley as I use them elsewhere and the app is dead easy.
But think it’s going to be smart plugs like others have utilised for cost/simplicity
May even remove the cabling to the second element and configure as an 850 watt unit to start with, easy enough to then reconnect the 2 cables back in later should it be required…
No reason why not, what would you use as a heat retention medium? You'd need a sleeve to house the cart in.
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
I considered these for making the cottage spine wall a big thermal mass.
The idea was to drill multiple holes in the solid stone wall that sits in the centre of the cottage, insert these into the holes with a grout to ensure thermal conductivity. Wire them up and put a false lift away plaster wall in front to cover the wires and I would have a sixty plus tonne thermal mass in the middle of the house.
Not sure how the mortar would accept the contraction and expansion over time though as the wall is 142 years old.
