As the new Christmas light strings are led at about a quarter of a watt per bulb or less, slate estimates the average house in their neighborhood sports over eighty thousand lights.
They must live in quite ritzy neighborhoods.
I suspect that 22 kilowatts per house nationwise would bring the grid down.
22 kilowatt-HOURS (energy) not 22 kilowatts (power). It's like comparing distance vs. speed.
You could light your 80000 LEDs for one hour, or a more modest 444 LEDs for 6 hours per night for 30 days with 22 kWh.