Tesla, which previously used its Powerpacks to create stationary storage solutions, has today unveiled the Megapack which is a 3 MWh stationary storage battery intended for infrastructures requiring greater capacity.
Better known for its electric cars, Tesla also has a section dedicated to energy through which it offers stationary storage solutions, for both professionals (Powerpack) and individuals (Powerwall), as well as solar panels.
Stationary storage systems relieve the grid during overproduction phases by allowing energy to be stored which will then be re-injected during peak consumption. This reduces wasted energy and power outages and increases the share of renewable energy.
For example, the world’s largest lithium-ion battery of 129 MWh, which generates energy savings estimated at more than 35 million euros, was installed by Tesla in Australia. However the manufacturer intends to continue its momentum by introducing the Megapack which is a form of advanced Powerpack, more suitable for storage solutions with a larger capacity.
The Megapack is based on the engineering of Powerpacks with an energy density increased by 60% and an alternating current interface. It can also be connected to direct current solar panels. Its capacity is 3 MWh, which is equivalent to around 30 Tesla Model S Grande Autonomie batteries.
Megapacks will be tested and delivered assembled from Nevada, in the Gigafactory “1”. They will be updated remotely if necessary, in the same way as the brand’s cars.
The manufacturer has already installed more than 2 GWh with Powerpacks and Powerwalls, including 1 GWh in 2018. Tesla aims to increase these figures in the years that follow and plans to install 1 GWh of installation in three months, or more than 300 Megapacks.
Pacific Gaz and Electric Company (PG&E) is expected to be the first project to use the new Megapacks in its stationary storage system in California.