Smelting aluminum requires between 12,500 kWh and 15,000 kWh of electricity per ton of yield.

My lights use 8.5 Wh apiece.

The notion that consumer savings will make a dent in our problem has a few problems with decimal places. This is, by-and-large, a capital-driven problem. It's probably true that a reduction of individual consumption of stuff would be more beneficial than our energy use, too...but then that creates a new problem for that capital, too. So not only is avoiding the collective-action problem probably easier, but it's more effective, too.