Why did Tesla stop selling Powerwall?

Could you elaborate on the reasons behind Tesla's decision to halt the sales of its Powerwall? Was it due to a lack of demand or was there a strategic shift in their product offerings? Did they encounter any production challenges or supply chain issues? Additionally, what does this mean for Tesla's renewable energy ambitions and its broader vision for sustainability? I'm curious to understand the context behind this move and its potential implications for both Tesla and the energy storage market.