Tesla steps into modular grid-scale storage production with his Megapack

Tesla is developing a battery specifically for grid power storage – following on from it building the world’s largest lithium-ion battery in Australia.

Called Megapack it is an assembled containerised 3Wh battery that includes 1.5MW of inverters.

“Every Megapack arrives pre-assembled and pre-tested in one enclosure from our Gigafactory, including battery modules, bi-directional inverters, a thermal management system, an AC main breaker and controls. All you need to do is connect its AC output to your site wiring,” said the firm. “Using Megapack, Tesla can deploy a 250MW, 1GWh power plant in less than three months on a three-acre footprint. Megapack can also be DC-connected directly to solar, creating seamless renewable energy plants.”

The intention is for such batteries to provide energy during peak demand, as an alternative to fast turn-on natural gas plants, perhaps from stored excess solar or wind energy.

All Megapacks are untended to be connected to a ‘Powerhub’ for monitoring and control – the firm developed its own software – what will work across large-scale utility projects and microgrids, said Tesla.

Peak electricity is expensive and potentially profitable – Tesla has a machine-learning platform for automated energy trading called ‘Autobidder’, that can also be integrated. “Customers have already used Autobidder to dispatch more than 100GWh of energy in global electricity markets,” it claimed.

Last year, Tesla installed mote than 1GWh of battery capacity through its Powerwall and Powerpack products, bringing its total global storage footprint more than 2GWh.