Hello All,
Since I am on the green tour and really want to be 100% fossil free I have taken interest into energy storage. I already should have enough solar (with net metering) to get me to below 0 and that is with the gas mains turned off. However that still means I am grid connected and will be taking in those electrons generated by fossil fuels.
That brings me to this place. With a Tesla powerwall2 @14kwh I should be able to be self powered for 8 months of the year (excluding the boiler hygiene run on Sunday night which will draw 9kW), which is an excellent start. However a Tesla powerwall 2 will be about 6800eur, without installation and other electrical adjustments needed.
I know my way around electronics, not afraid of a soldering iron and not shy of a bit of work; but can I actually *significantly* reduce the cost of battery storage by going DIY? It seems that by purchasing new cells that is mostly a no as the best price I have found was 1.45EUR for a 2600mA cell where the website itself claimed the cell quality was dubious. Now I could go out and start recycling laptop batteries, if I manage to find them. Of course after the initial setup expanding will be cheaper as that only needs the cells to recycle.
What is the general experience with this?
Since I am on the green tour and really want to be 100% fossil free I have taken interest into energy storage. I already should have enough solar (with net metering) to get me to below 0 and that is with the gas mains turned off. However that still means I am grid connected and will be taking in those electrons generated by fossil fuels.
That brings me to this place. With a Tesla powerwall2 @14kwh I should be able to be self powered for 8 months of the year (excluding the boiler hygiene run on Sunday night which will draw 9kW), which is an excellent start. However a Tesla powerwall 2 will be about 6800eur, without installation and other electrical adjustments needed.
I know my way around electronics, not afraid of a soldering iron and not shy of a bit of work; but can I actually *significantly* reduce the cost of battery storage by going DIY? It seems that by purchasing new cells that is mostly a no as the best price I have found was 1.45EUR for a 2600mA cell where the website itself claimed the cell quality was dubious. Now I could go out and start recycling laptop batteries, if I manage to find them. Of course after the initial setup expanding will be cheaper as that only needs the cells to recycle.
What is the general experience with this?