Megapack

Megapack is a line of utility-scale energy storage systems developed and sold by Tesla, designed for rapid deployment to stabilize electrical grids and support the integration of renewable energy. Each Megapack unit combines lithium-ion battery modules, power inverters, thermal management, and control software in a single containerized package. The configuration is commonly cited as about 3 megawatt-hours of storage per unit with up to 1.5 megawatts of continuous power, and multiple units can be combined to form larger installations. The design emphasizes factory testing, modularity, and simplified installation for grid operators.

Tesla markets Megapack for services such as peak shaving, frequency regulation, and capacity provision to utility networks, enabling faster response times than traditional gas-fired peakers. The system is intended to be deployed in days rather than months and can be scaled by adding additional units to an existing site. Software controls enable remote monitoring, predictive maintenance, and automated dispatch for grid services.

Megapack deployments have been announced and installed in multiple regions around the world, as part of efforts to increase renewable penetration and grid reliability. While proponents highlight rapid deployment and potential operating cost advantages over time, critics point to upfront capital costs, battery material supply chains, end-of-life recycling, and safety considerations such as thermal management and fire risk.

See also energy storage, lithium-ion battery, grid-scale energy storage.