Tesla unveils batteries for homesTesla CEO Elon Musk last week unveiled his car company's suite of new battery products for homes, business, and even utility scale applications. The home product, dubbed the Tesla Powerwall, will store either 10 kilowatt-hours worth of energy for $ 3,500 or 7 kilowatt-hours for $3,000.
■Class discussion: Do you think these batteries could help reduce the use of fossil fuels? Why or why not? Would you like to live in a home that is off the power grid? Homeowners in some places like Hawaii are rapidly adopting solar power and using the power grid as a backup source of electricity. How are the electric utilities coping with their changing role? Could improved battery technology help the utilities adapt?