You can buy 15kWh of battery storage for <2000 Euros if you are willing to assemble the battery yourself. This is roughly the capacity of a single rack-mount ba

You can buy 15kWh of battery storage for <2000 Euros if you are willing to assemble the battery yourself. This is roughly the capacity of a single rack-mount battery. Just the cells are <1400 Euros, this is crazy. Because the battery is now far from the most expensive item for a solar-battery setup. The battery revolution cannot be overstated, especially now with Sodium batteries entering the market, which don't use lithium.