Tesla battery announced as key to ‘weaning the world off fossil fuels’

The CEO of Tesla Motors Elon Musk has announced a Tesla Energy battery for businesses and utility companies during an event in California on Thursday.

Telsa Energy was described by the company in a statement as "a suite of batteries for homes, businesses, and utilities fostering a clean energy ecosystem and helping wean the world off fossil fuels."

Tesla Energy is a critical step in this mission to enable zero emission power generation."
Elon Musk
Musk made the official announcement onstage at the company's design studio in Hawthorne, CA, just south of LA.

"We have this handy fusion reactor in the sky, called the Sun," he said, stressing that solar power is the best way to end the world's addiction to fossil fuels and head off a disastrous future in which we are overwhelmed by CO2 in the atmosphere.

What's the problem? The Sun doesn't shine at night. So you need to store the power gathered by solar panels. But existing batteries, as Musk quipped, "suck."

The "missing piece," according to him, is Tesla's suite of batteries. And they will not suck.

The home battery, called the "Powerwall," is intended to store solar energy and enable customers to bank grid electricity from non-peak periods and use it during peak times, saving money.

The Powerwall is a rechargeable lithium-ion battery designed to store energy at a residential level for load shifting, backup power and self-consumption of solar power generation.

"The unit mounts seamlessly on a wall and is integrated with the local grid to harness excess power and give customers the flexibility to draw energy from their own reserve," Musk said.

The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with solar power, the 7kWh Powerwall can be used in daily cycling to extend the environmental and cost benefits of solar into the night when sunlight is unavailable.

Tesla’s selling price to installers is $3500 for 10kWh and $3000 for 7kWh. (Price excludes inverter and installation.) Deliveries begin in late summer.

There will also be a battery application for businesses; and one for utilities, both operating on a larger scale than the "Powerwall" home battery. They will be called "Powerpacks."

Musk said that with 160 million Powerpacks, the entire United States could be transitioned to renewable energy.

 



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