July 17, 2025, Palo Alto Tesla has officially launched the Powerwall 4, its latest home battery system. This new version stores more energy, charges faster, and can work better with local electric grids.
The Powerwall 4 is now available for homes and businesses in North America, Europe, and Australia. It works with new and existing solar panel setups.
What’s New in Powerwall 4
- Capacity: 17.5 kWh (up from 13.5 kWh)
- Charging: 2x faster with upgraded inverter
- Power output: Up to 10 kW continuous
- Grid support: Can sell energy back to the grid automatically
- AI energy planner: Learns your usage habits and weather patterns
The system includes an updated Powerwall Gateway 3, which allows users to manage energy through the Tesla app with live tracking and remote controls.
Designed for Energy Independence
Tesla says the Powerwall 4 can fully power a typical home during outages and support EV charging. In areas with time-of-use electricity rates, it can save users up to 60% on monthly power bills by storing energy when it’s cheap and using it when rates spike.
Users can also join Tesla’s “Virtual Power Plant” program, allowing them to share stored power with their local grid and earn energy credits.
Faster Installations and Global Rollout
Powerwall 4 comes in a slimmer design and installs 30% faster than previous models. It includes built-in overheat protection and is now certified for outdoor installations in extreme weather.
Shipments begin this week, and Tesla says it already has over 100,000 pre-orders globally. Installers report strong demand from both homeowners and small businesses.
Conclusion
With the Powerwall 4, Tesla is giving customers more control over their energy use while helping utilities manage grid demand. The combination of smart software and stronger hardware could make battery storage more common in homes around the world.
Sources: Tesla Energy, Electrek, GreenTech Media
