“This will fundamentally change the way the world uses energy at the extreme scale – to completely sustainable zero emissions” Elon Musk, CEO Tesla
Electric vehicle manufacturer Tesla has launched its long anticipated battery storage technology, the centre piece of which is the “Powerwall” home battery storage system.
The Powerwall is available in 10kWh, if wanted for backup applications, or 7kWh if optimised for daily use applications. Tesla says it will sell these batteries to installers for $US3,500 for 10kWh and $US3,000 for the 7kWh. This excludes the price of inverters and installation.
The Powerwall is a rechargeable lithium-ion battery that is designed to store energy at a residential level for load shifting, backup power and self-consumption of solar power generation.
It will consist of a lithium-ion battery pack, liquid thermal control system and software that receives dispatch commands from a solar inverter. It can be mounted on the wall and is integrated with the local grid.
“The key thing for the Powerwall on the consumer side is its beautiful, it fits on the wall, you can put it on the outside wall of your house,” Musk told journalists. “It’s only about 6 inches thick and a few feet across and a few feet tall.”
The battery will come with a 10-year guarantee and integrated management software: “It will be connected to the Internet so we can create smart micro-grids,”
Musk says that 160 million of the Tesla powerpacks could transition the US to 100 per cent renewable energy, mostly solar. About 900 million could transition the world, and 2 billion could do it, including transport and heating.
“That may seem like an insane number … but it is not. The number of cars and trucks we have on the road is 2 billion,” he said.
“This is within the power of humanity to do. It is not impossible. It is something we can do,” he said. “And that is the future we need to have.”
For Musk, this is not all about the money, it is a real mission to transition the world to renewable energy sources, which is underlined by Tesla’s commitment to open source.
“We want other companies to succeed as well…Tesla will continue to be an open source…if somebody is able to make a better battery solution than us then I will be the first to congratulate them.” Elon Musk
Renewable energy storage solutions, such as this, move us closer to renewable energy being a consistent and viable source of world energy. Musk said that Tesla is not just an automotive company, it’s an “energy innovation company.” And it will help homes, business, and utilities to “store sustainable and renewable energy to manage power demand, provide backup power and increase grid resilience.” It could help some leave the grid altogether.
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