Stacey007 wrote:

Hello


Does anyone use a power bank in conjunction with solar panels for home use.

I'm currently looking at options and found a table that listed all the different makes and price per Kw as it happens the Tesla power bank 2 is one of the best value.

I Have no solar panels on the house yet so just looking at options it would be good to hear if anyone uses a storage system and what you think of it.


Thanks

I've worked a couple jobs with Powerpacks...

They're pretty solid but require building control for install as they're LI-ON batteries which if they go up the fire brigade only carry extinguishers for. I'd also check with your home insurer before you do so, as you need to mount it on a solid masonry wall (IE 1B brick/Block thk without insulation or cavity) so many end up in a hidden concrete pit in the front garden instead. Or at least for powerwall 1...

They have been available in the Uk contrary to popular belief but there were only a couple of installers who were Niceic qualified and willing to sign off on them, they had a 3 year wait list (like everything tesla) at one point.

I understand they're now indoor approved.

In terms of Solar panels they're mostly useless as the rate of degradation for most PV units outweighs the total sum of energy generated due to weather conditions in the uk. Or in simple terms they get less efficient over time and due to the UKs climate, they will become so inefficient that you will never recoup your costs unless its sunny 240 days a year for 30 years.

If you have a bit of land i'd suggest ground source heat pumps with thermoelectric generator which work geothermally so energy output is not based on output on weather but on seasons. Only problem is they're significantly pricey and require planning permission. My bosses house had one and it was the nuts, cool in summer, warm in winter, and something like 90% off the grid. I'm on IG: https://www.instagram.com/osloblue42/
Current: TD5 '110 "Lucinda" Thread here: https://www.defender2.net/forum/topic62562.html

Stacey007 wrote:

OsloBlue


Interesting, I was on;y a few days ago discussing the ground source heating option with my dad. A company he had seen were offering the kit but its £30K

The Tesla powerbank and panels is around half this even from tesla and I can sort the panels cheaper and fitting..


However I appreciate they work differently, How much land is needed for the heat pump and again can you store the power? I've not looked into this enough

I’ve seen people get by on a single bore but that has to be really deep, and the deeper you go the more expensive it gets as you need a bigger rig which required more space etc. But you can do shallower bore but more of them, I’ve seen a 35m/sq back garden in Holland Park with 5 bores (one per corner and one in centre) but the issue was getting a boring/ piling rig back there.

When PV panels eventually wear out after about 25 years deterioration they’re dead weight, good luck getting them taken away. So you will end up paying for them to be taken away and new ones installed.

When the GSHPs wear out it’s a matter of replacing the pumps and generator whilst retaining the bores which is a fraction of the cost etc.

Lots of people jump into PVs when they don’t require them as their cost outweighs what they will ever save or reclaim from the grid.

Green deals are now withdrawn, however some local authorities continue and allow you to apply for them for retrofitting of insulation, windows and boilers where I live.

Money might be better spent on those items I'm on IG: https://www.instagram.com/osloblue42/
Current: TD5 '110 "Lucinda" Thread here: https://www.defender2.net/forum/topic62562.html