Megapack is our utility-scale energy storage platform, a key part of our mission to achieve sustainable abundance via sustainable energy.

@Tesla_Megapack stores energy when production is high & discharges/releases it when the grid needs it – balancing renewables & supporting a reliable grid.

Megablock is our pre-engineered medium-voltage block:

– Designed for 20 MWh AC, 25-year life & >10,000 cycles
91% round-trip efficiency at medium voltage, inclusive of auxiliary loads
– Ambient operating temperature range, from -40C to 60C
– 23% faster to install with up to 40% lower construction costs
– Site-level density of 248 MWh AC-per-acre, with all clearances needed for installation and service

Megablock uses Megapack 3, with:
– Proven inverter & fire protection system
– A drastically simplified thermal bay with 78% fewer connection
– Latest cell technology: supply from the US, Southeast Asia & China
– 50 GWh per year manufacturing capacity

Deliveries start in the second half of 2026

Software & services from Tesla – demonstrated across >36 GWh global operating fleet