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I don't know enough about that stuff and the ventilation requirements but our house doesn't have soffits. It has feet of the rockwool stuff, really shallow lofts at 2 levels.
Mate had a mare with a non std flat roof build in Canada with mould due to poor ventilation. Entire roof replaced, 6 figure bill
Having been listening to a bit of news lately about china waking from its covid slumber and the potential pressure on energy prices plus the success of my intel Octo tariff I've decided to pull the trigger on some batteries. I think if I can install c10kwh it will cover over 90% my day rate usage, we don't often pull over 3kw for any period of time but could get a 5kw controller.. got my sparky looking at it
Jason if you want a second opinion/quote these are the folk I use. 2.4kWh Pylon batteries £950/one discounting down below £900 for many.
Based Keighley they will install UK wide. Say hi to Michael. https://homeenergygroup.co.uk/
edit: I would start with less batt than you think you need.
See how it goes you can always add more to the end of the string later.
The Pylon batteries I use are always being upgraded but mostly adding another is DIY.
I went from 3 to 4 quite quickly DIY but for the 5th there was a comms wire upgrade so I paid them to do it.
edit2: most houses with roofs and gutters have soffits but who knows these days! More here on why homes need soffits etc
Jason if you want a second opinion/quote these are the folk I use. 2.4kWh Pylon batteries £950/one discounting down below £900 for many.
Based Keighley they will install UK wide. Say hi to Michael. https://homeenergygroup.co.uk/
edit: I would start with less batt than you think you need.
See how it goes you can always add more to the end of the string later.
The Pylon batteries I use are always being upgraded but mostly adding another is DIY.
I went from 3 to 4 quite quickly DIY but for the 5th there was a comms wire upgrade so I paid them to do it.
Thanks Rog.. I will run it by you
That site is what I shared with him, dude across the road who installed my charger and wired up my shed has started solar installs but that is no longer of interest to me as I think the payoff is way too long and the potential sale premium I'm not confident on
Batts I will get installed and removed when we leave
Those people use a Luxpower controller costs about £1k same as a battery. Comes with a good app but downside is it comes with a Mickey Mouse EPS (extended power supply) function that supports one main and one light circuit off your consumer unit when mains supply fails. In the end I got them to disable it as it even kicked in when a bulb blew and triggered the RCD i.e. normal appliance failure mode. Switching to EPS mode for that is just something we have here that the Chinese programmers don't allow for. So I now have a mini consumer unit with precisely no MCBs in it.
Taking the batts when you go in my application is easy DIY removing the Luxpower controller really needs to be done by a certified sparks.
we had cavity wall blown in on the old gaf, 70s wonder.
They drill round the outside, start low, blow it in (shredded loft insulation) till it comes out the holes.
Higher holes, repeat.
It helped, that place was like a fridge when we bought it.
It's bloody hard making old houses energy efficient, we loaded up on loft insulation, put in a new boiler and removed the vent for the old back boiler but the chimney draw was unreal so I used to block it up (we didn't use the fire). The windows were dire too
our new place is much bigger (new) but uses less gas I think
I am sat here thinking of ways to get my AVG price per kWh under 20p
Like Hans I'll be round the gaffe flipping switches lol
I am using 4.5 kWh of electricity and 15 kWh of gas a day now in summer. The house is 250 m2 mid Victorian. Annual figures: 21,500 kWh gas, 1,900 kWh electricity. Or about 90 KWh/m2 and year - this is a good comparison measure.
I am a turner off of switches here , but don’t go to the lengths of worrying about standby.
worst thing about my bungalow construction , build circa 1990, was the cold bridge, outer skin of bricks stops at soffit , inner blocks carry on up to ceiling height 175mm one course of blocks , zero insulation there and the cavity closed witha course of bricks for some reason , so a cold bridge l I have removed this course and insulated with celotex up to ceiling height . Also now the entire loft space has had timber battens across the trusses followed by 100mm celotex , the battens allowed for wires and pipes the original rock wool filled in between trusses , bonus you can walk around on the Celotex ! Carefully
100mm Celotex on attic floor - exactly what I did as well.
Same as my loft I see you used aluminium foil tape as well , I had to cut sheets length ways to get them into the loft , rough cuts but put back together for perfect joint
used
250kwh at 7.14 - £17.95
240kwh at 37.4 - £89.92
If the battery can reduce that £89.92 so that only 10% of that use is at primo price
24kwh at 37.4 - £8.97
216kwh at 7.14 - £15.42
£24.39
So ignoring the already cheap a £65 reduction over 26 days of that bill or £75 a month
£900 pa.. if I want it to pay for itself in 6 years (I do) my budget is £5.4k max. There are a ton of assumptions here, that our gov are shithouses who will sit on their fat arses, that out energy companies are happy as is, that intertia is high and energy prices won't drop...
I think install will be around about that for about 10kwh storage.. let's see
The people I used for 4 x 2.4kWh (9.6) batts plus controller would have been £5k installed. My memory of pricing is a few years ago but they should be on your budget.
BTW the IO cost per unit is not 7.14p there's at least 0.36p VAT you pay plus the Standing Charge >40p/day. ROI more like 7 years (guessing)
The people I used for 4 x 2.4kWh (9.6) batts plus controller would have been £5k installed. My memory of pricing is a few years ago but they should be on your budget.
BTW the IO cost per unit is not 7.14p there's at least 0.36p VAT you pay plus the Standing Charge >40p/day. ROI more like 7 years (guessing)
Standing charge is true in all cases so a constant.
I used high rate pre vat too, but you are right, I do pay 5% VAT (thanks labour, ya ****ers)
Anyway, they didn't tell me but new rates are
Hi 29.78
Lo 7.5
So my new high bill is reduced and payoff extended... Unless I bet against failure in winter
