John Brown
Social media influenza
I'm not doubting that, but it does sound too good to be true. Also, it "captures cold" at night??
What's cold?
What's cold?
Is that not the wrong way round, you want the better efficiency when the usage is higher, ie winter. Some people in Cumbria may be getting the ideal underfloor heating when the government gets round to burying all the radioactive waste, that will be good for at least ten generations providing you are willing to become sterile and bald.There are now cunning systems that can increase summer CoP to around 8 and in winter to around 5.5.
I would have thought that is the last thing you want to capture, surely if the ground is colder then it will transfer heat from your house to warm up the ground.Also, it "captures cold" at night??
I don't think so - in winter, the GSHP has to work much harder to get the required temperature rise to the property so lower CoP; in summer, the ground is already warmer so the GSHP has less work to do, so higher CoP.Is that not the wrong way round, you want the better efficiency when the usage is higher, ie winter. Some people in Cumbria may be getting the ideal underfloor heating when the government gets round to burying all the radioactive waste, that will be good for at least ten generations providing you are willing to become sterile and bald.
Ah ................. that's what caused it .Is that not the wrong way round, you want the better efficiency when the usage is higher, ie winter. Some people in Cumbria may be getting the ideal underfloor heating when the government gets round to burying all the radioactive waste, that will be good for at least ten generations providing you are willing to become sterile and bald.
Good man.Well I've gone and done it 18 solar panels, controller and 2 x batteries on order - will keep this thread upto date on my view of : is it worth it or not !! yep after paying out my money i'll try to be non bias. - start with roof 41 degrees 30 southeast. most of my full sun will be early morning till 4ish. Please No Black Cats - ie; could have told you that; i'd have done it for nowt!; why dint you ask; last week I had one to give away; well that's what Black Cats do in Yorkshire.
I think it's Cos (phi) not theta.That holds true in Ac circuits providing both current and voltage are RMS values. Multiply this by Sin Theta to get real power and by Cos Theta to get reactive or imaginary power which you may or may not be charged for.
Reactive power was really only of concern to large industries with machinery and lots of motors where there was a high percentage of inductance, but now it seems households are seeing more reactive power though capacitive loads as in switching power supplies and modern technology.
When looking at energy suppliers it is important to bear in mind their daily standing charge, so if you turned off both your gas and electricity you will still get a bill. High energy users can accept slightly higher standing charges for cheaper unit rates wheras low energy uses may accept the slightly higher unit rates for lower standing charges.
The Ladybird book ‘Batteries, Bulbs and Magnets’ started my interest in electricity and that led me to a career in engineering.That is the sort of book that got many boys into engineering, got them interested in physics and just something that gets the mind thinking and curiousity into overdrive.
I met a lot of engineers that used the same training manual!!The Ladybird book ‘Batteries, Bulbs and Magnets’ started my interest in electricity and that led me to a career in engineering
Yes, me too. And later, Into programming and databases.The Ladybird book ‘Batteries, Bulbs and Magnets’ started my interest in electricity and that led me to a career in engineering.
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