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Dan's 57kWh Build
#21
I read this the other day. It might be of interest, Wardy. Bear in mind though that he is in Canada and receives more sun than we enjoy here in the UK, and he has much shorter periods of over cast weather. He's also built himself a shoe box at just 65m2. However her does deal with temperatures far lower than the worst UK winter.

So... some things to think about and learn from, but he's certainly the exception to the rule. Few people could heat their home from solar, and even he needs to accept a very large internal temperature variation of about 8 degrees. My heating is controlled to within 1 degree, and I wouldn't want much more myself as just 1.5 degree difference is all it takes for me to go from feeling cold to too warm.

http://www.eevblog.com/forum/renewable-e...tural-gas/
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#22
(11-27-2018, 09:00 PM)w0067814 Wrote: I read this the other day. It might be of interest,  Wardy. Bear in mind though that he is in Canada and receives more sun than we enjoy here in the UK,  and he has much shorter periods of over cast weather. He's also built himself a shoe box at just 65m2. However her does deal with temperatures far lower than the worst UK winter.

So... some things to think about and learn from,  but he's certainly the exception to the rule. Few people could heat their home from solar,  and even he needs to accept a very large internal temperature variation of about 8 degrees. My heating is controlled to within 1 degree,  and I wouldn't want much more myself as just 1.5 degree difference is all it takes for me to go from feeling cold to too warm.

http://www.eevblog.com/forum/renewable-e...tural-gas/


Thanks for sending that link my way mate!. There are some great projects on there that are striving for the same goal as me. I'm still trying to work out which route to go down for heating and hot water, I really like the look of the sunamp heat batteries you showed me. I need to do some more research into them on how best to incorporate them. 
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#23
Bit of an update to the build. 
With a new born to add to the mix and working away from home a lot lately, progress has been slower than I would have liked but I've managed to get the storage box finished with a frame welded up with casters on the bottom so I can wheel it about easily during the build, also the shelf welded up to along with a few packs completed. 

 



I'm yet to drill the connecting holes for the M6 bolts in the busbars but there will be 1/4" / 6.3mm copper packers going between each one to separate them. Its going to be a snug fit in there, will be interesting to see if the packs generate much heat in there during use, if so I will have to add some vents to the box.
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#24
It might be worth putting some thin rubber mat or some other insulation under the pack, in the unlikely event they tip forward and short on the shelf.
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#25
(01-17-2019, 12:31 AM)Geek Wrote: It might be worth putting some thin rubber mat or some other insulation under the pack, in the unlikely event they tip forward and short on the shelf.

It’s a good idea from a safety stand point but I don’t think it would be very practical. The packs have got some weight to them and if there was rubber underneath it would be difficult to slide packs in and out. Once the build is complete and in service I will be fixing it to the wall so there will be no need to move it around anymore, I think it should be quite rigid to once all the bus bars are bolted together. I will put some plastic to the inside side faces as there will only be around 10mm gap each side when done and don’t want the busbars to touch the the box at all by accident.
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