Recycle old batteries? (for solar installation?)

[innuend0]

I hope I put this message in the correct forum, otherwise please tell me and move it.

It seems that it is possible, by various means, to give new life to old automotive batteries:
http://fotovolt.free.fr/fotovolt12/index.html
http://nrjrealiste.fr/elec/regenacu.html


* What is the economic balance of such reuse?
* Is it effective?
* Why not use it to make a solar installation with less environmental impact (if it is the case)?

[I Citro]

A battery specialist told me that to store solar electricity, the best is the traction battery.

Auto batteries provide great power for a short period of time (starting) and are unable to withstand a deep discharge.

Traction batteries are very heavy and are capable of withstanding large discharges, but above all of supplying current over long cycles.

The heavier a battery, the more it will be usable for this use.
Recycling with edta can therefore be considered for large batteries (agricultural machines, tractors, trucks) or better, by recovering batteries from electric carts or pallet trucks (fenwick, jungheinrich, yale ...)

Personally, I consider photovoltaics as heresy. In fact, the cost of the m² and the yield are economically depreciable (unless a concentrator is used). I think it is more rational to convert thermal solar energy into electricity or to use wind power.

[elephant]

it also seems obvious to me that, apart from the power supply to spacecraft, photovoltaics, for many years to come, must be reserved:

1) very small consumers (I'm thinking of calculators)
2) to supply isolated consumers (measurement systems in open country, park meters, isolated indicator panels, etc.)

as for the storage of wind electricity in batteries, I consider it can be profitable (try a little to feed your washing machine with this to see?)
I think it's much more economical to make hot water from wind power

that said, it should not be impossible to recover used batteries for amateur use, although the operation is probably fairly polluting

[Polo]

Hello,
Citro, It seems that it is profitable after 10-15 years (it lives 30 years) and ecologically it's all beneficial 'so why do you hate photovoltaics so much?
ciao and have a nice day !!!
PS: I love your InnuendO avatar!

[I Citro]

Hello,
Citro, It seems that it is profitable after 10-15 years (it lives 30 years) and ecologically it's all beneficial 'so why do you hate photovoltaics so much?

Because there is much more profitable !!!
In my opinion, photovoltaic solar energy is only really profitable for the bankers from whom you will borrow to "invest".
The market is rigged, it's a scam. It moves faster on the side of thermal solar. we are starting to find VERY GOOD complete equipment at Leroy Merlin for less than 2000 € (excluding installation). with investment returns of less than 5 years.
Even if this is still excessive when we find gas boilers at 600 € with a technological content and a manufacturing complexity much higher !!!
I'm not talking about air / air heat pumps (reversible air conditioning split) that we find from € 150 (the best start at € 500) and which pay for themselves in less than 2 years !!! Their installation is not rocket science and requires no special tools despite what the professionals say.

This is why I am not for photovoltaics, except for small areas.