Tesla has signed another deal with a utility, partnering with a Vermont utility to offer customers backup electricity for a fee.
The California-based sustainable energy company will install several of its nearly 4,000-pound Tesla Powerpack battery units on utility
Vermont utility Green Mountain Power delivers electricity to three-quarters of the state's population. For a monthly fee of $15, or a one-time $1,500 fee, customers will receive backup power to their home for next 10 years, Tesla said. (Ten years is the warranty period during which Tesla guarantees their advertised performance level.)