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Tesla has introduced the Powerwall, a home battery designed to store energy from solar panels and the grid, offering a cost-effective solution for energy independence. Initially priced at $3,500, it will be available in the U.S. by the end of the year, with plans for international sales in 2016.

What is the primary purpose of the Tesla Powerwall as introduced in the video?

• To generate electricity

• To store energy for homes

• To power electric cars

• To replace traditional batteries

How does the Powerwall contribute to energy independence for homes?

• By storing energy from solar panels and the grid

• By generating its own electricity

• By reducing energy consumption

• By connecting to multiple power sources

What is the cost of the Tesla Powerwall as mentioned in the video?

• $2,500

• $3,500

• $4,500

• $5,500

When is the Tesla Powerwall expected to be available in the United States?

• Mid this year

• Next month

• End of this year

• Early next year

What is Tesla's plan for the Powerwall in terms of international sales?

• To launch it globally in 2016

• To sell it in Asia by 2017

• To keep it exclusive to the U.S.

• To sell it only in Europe