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By NewsGram Staff Writer

A lot of businesses are leveraging the power of the sun by making use of solar panels. However, most of them are left baffled after the sun sets, largely because they are inept at using solar energy when the sun is not shining.

Tesla motors, an American electric car design and manufacturing company aims to change all that. It has decided to manufacture batteries that store solar energy and serve as a back-up system for consumers during blackouts.

The announcement was made at an event near Los Angeles where Tesla’s Chief Executive Elon Musk said that the move could help change the “entire energy infrastructure of the world.”

This change would be brought about by allowing consumers to get off a power grid or bring energy to remote areas that are not on a grid.

Musk said that Tesla Energy would partner with SolarCity, though more companies are expected to join the fray. The system is known as Powerwall and will begin shipping in the US by this summer.

“If you have the Tesla Powerwall, if the utility goes down, you still have power,” Mr. Musk said.

According to the company, Tesla Energy is a critical step in the mission to enable zero emission power generation.


“The whole thing is an integrated system that just works.”

Analysts say the rechargeable lithium-ion battery unit will be built using the same batteries Tesla produces for its electric vehicles.

The system comes in two units: Tesla will sell the 7kWh unit for $3,000 (£1,954), while the 10kWh unit will retail for $3,500 (£2,275) to installers.

Energy comparison firm USwitch estimates that one kWh can power two days of work on a laptop, a full washing machine cycle or be used to boil a kettle 10 times.

The batteries will be connected to the Internet and can be managed by Tesla from afar.

Customers can connect up to nine battery packs to store larger amounts of power.


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Indian wrestler Ravi Kumar (57kg) and Deepak Punia (86kg) enjoyed fruitful outings at the Tokyo Olympic Games as they secured semifinal berths in their respective weight categories at the Makuhari Messe on Wednesday.

On the opening day of the wrestling competition, Ravi Kumar defeated Bulgaria's Georgi Vangelov 14-4 on technical superiority to reach the last-four in the men's 57kg category, while compatriot Deepak Punia overcame China's Zushen Lin 6-3 on points to advance to the semifinals.

Ravi Kumar will take on Nurislam Sanayev of Kazakhstan in the last-four, while Punia will be up against David Morris Taylor of the USA.

Earlier, Ravi Kumar had won his opening-round bout by technical superiority against Colombia's Oscar Tigreros to secure a quarterfinal spot. Competing in the Round-of-16 bout against the Colombian wrestler, the 23-year-old Ravi Kumar, who is making his Olympic debut, showed no nerves as he dominated the bout to win by technical superiority (13-2).

Ravi Kumar landed attack after attack and went 13-2 up, winning the bout by technical superiority with minutes to spare. In wrestling, building up a 10-point lead over the opponent results in a victory by technical superiority.

India's 86kg freestyle wrestler Deepak Punia showed no signs of the niggle that had forced him to pull out of the Poland Open Ranking Series in Warsaw in June, as he defeated Nigeria's Ekerekeme Agiomor on technical superiority to secure a quarterfinal berth.

He got his Olympic campaign to a fine start as he was in control from the start of the bout and hardly ever allowed his Nigerian opponent any room to maneuver his moves, finally winning with a 12-1 on technical superiority.

Punia, who had also suffered an elbow injury just before the Games, was slow at the start but came into his own as the bout progressed, inflicting takedowns at regular intervals to earn points.

The Indian wrestler eased into a 4-1 lead at the break and extended his lead comfortably in the second period.

Punia, the silver medallist from the 2019 world wrestling championships, then set up a clash with China's Lin Zushen in the quarterfinals and defeated him 6-3.

(IANS/HP)