I guess the promise is (also practically possible) to have electrical _connection_ to all households. It's a different question whether there will be, or can be, steady electricity supply, given how the electricity distribution is currently managed.
Regarding providing free electricity - this can be a good thing as long as the electricity consumption is free up to an amount limited by the size of the house and household. This is very susceptible to abuse.
Regarding providing free electricity - this can be a good thing as long as the electricity consumption is free up to an amount limited by the size of the house and household. This is very susceptible to abuse.