scottishjohn
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Everything posted by scottishjohn
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Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
someone from tesla will ring me later - https://empowerenergy.co.uk/tesla-powerwall-backupgateway2/ -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
I,ll ask the question -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
Iam talking to uk -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
I just talked to tesla and they say thats exactly whats it does --disconnects the gird and allows pv to charge your powerwall and you can use that power in the house -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
I see tesla make such a device to addo not your powerwall --which gets round this problem and allows your pv to keep on working n March 2019, Tesla released the ‘Backup Gateway 2’ which allows you to use the electricity stored in your Powerwall in the event of a power-cut. -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
that seems a good idea what it does highlight is if someone was wanting to add PV because their supply is prone to outages ,then std system cannot cope with that once batteries gone down --no power even if sunny EG lots of snow and power lines down for days in winter. so for those better to have a stand by generator in first place -
Powercut, sun shining, PV not generating
scottishjohn replied to vivienz's topic in Electrics - Other
different invertor then if OFF GRID system ? that is a pain --would have thought there should be some sort of overide switch for just this situation -
worth a look if in scotland -sale at hillington -loads of building stuff
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pull out strip of PB fill behind with foam or what ever --refit PB when it still sof-pb should stick to it -trim off foam as required ?
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or use fibre addition to slab concrete --no need for steel then ? sure i will be corrected if wrong
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to work CORRECTLY lathe and plaster needs a gap up the wall and air flow from under floor into roof space or out at eves
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hope thats an old picture cos plenty of damp to rot things showing there--you can see wall is full of damp,by clour of old lime mortar -- I,m guessing it would have no damp course and probably ground floor was beams sat on bits of slate above the earth- so whats been done to make floor damp proof-new slab and DPC?
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they relied on lime mortar to allow walls to breath and probably lime wash on inside or lime plaster
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looks like its been repointed with cement and not lime assuming ouside is done the same --so any water will sit in wall and not evporate out ideally rake out outside and redo with lime at some point 50mm studs in metal ? I presume you want to keep room sizes as large as possible 140mm of normal studs and insulation will take alot of floor area away --and thats what you would need to get to modern spec then i would build small wood frame or metal studs and use CLOSED cell spray foam --not cheapest --but best R value for thickness and totally water proof and will stick inside framing to outside as well - leave it shy of top of studs --so you have a complete hard skin --then fill with what ever after that or foam backed PB --40mm is minimum I think you will find for water proofing If you do the back of the sarking boards as well you will have it air tight as well often used as the water barrier in basements on the outside in US check it out your self
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I take it the plot will not have a garage if acces is so narrow
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Yet another couple of dumb plumbing questions
scottishjohn replied to dnb's topic in Waste & Sewerage
builders band make your own ? or ready made units like this http://www.gordonproducts.co.uk/products/110mm-soil-pipe-support-brackets/ -
are you going to do an air leakage test? If so do it now, when it shows up all the leaks and drafts then fit the VCL and it will do 2 jobs if fitted and taped well
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maybe me --I can,t see a services room -boiler MVHR,fuse box etc etc
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so you need to live in it or put it in wifes name for a year --then any profit will not be liable to CGT
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OK so now we know where to blame...
scottishjohn replied to MikeSharp01's topic in Environmental Building Politics
and if we all do that then the grid will not be fit to take the energy we will want to send back in summer -- so the DNO need to upgrade the networks to take it- -
OK so now we know where to blame...
scottishjohn replied to MikeSharp01's topic in Environmental Building Politics
again that is assuming the majority can afford to buy new cars -which is not so --so older cars make up most of the pollution and it is probably new car owners that are doing most mileage anyway Me i run an 09 -but its only done 50 k-so economical way to run is just run it longer to offset the high capitol cost of new car -
OK so now we know where to blame...
scottishjohn replied to MikeSharp01's topic in Environmental Building Politics
It seems common sense that with modern computer design and manufacturing that it should be easy to do with SIPS or like in germany where they make woodcrete panels (velox) --whole house sides with window holes everything ,crane on to site then just fill with concrete -
OK so now we know where to blame...
scottishjohn replied to MikeSharp01's topic in Environmental Building Politics
you could have it added to rates if poor epc, but at sme time planning needs to be bit more friendly on old buildings in ways they allow them to rebuild and replace old with new EG -- man here wanted to replace an old stone farm house with an earth shelterd almost invisible building NO -out of character for area was what palnning ruled --my guess as they are local councillors they were just jealous and want to keep the incomers out the basic presumption is they want you replace like with like -
closed cell foam -which will water proof old wall at same time its the same machine as used for open cell icyene -just different type of foam I,m still plotting could be I,ll need to flatten -if so then I,ll be looking for a stone cropper that can work with GRANITE to turn 12" thick bits into -4" bits to clad the new house and then use it to make granite cobbles etc with stuff i don,t use for all the outside paved areas
