1. Introduction Modern home battery systems like Tesla's Powerwall 2 are transforming how we store and use energy in our houses. The Powerwall 2, a crucial part of Tesla's sustainable energy solutions, enables homeowners to capture solar energy, store extra energy, and utilize it when needed, minimizing dependency on the grid and electricity prices. The renewable energy sector has been shaken by Tesla's recent revelation that the Powerwall 2 will now only cost $650, a huge reduction from the...