We can do this.

1. We already have hydro-power generators in many places. We will also build new nuclear power plants as in many countries.
2. We will build electricity transmission towers that will transmit electricity without wires. It will be via satelites. It may also be via the cellular power receiver/transmitting towers - exactly like cell phone towers.
3. These towers will again supply the power wirelessly to individual power distribution centers. It will eventually have another subset of wireless power distributers.
4. Every house will have wireless power receiver. At the end every house will have electricity like today.

Do you think we can build wireless electricity supply technology for every cities and houses? I guess we can do it.