Your friendly neighborhood cap-and-trade.

They say cap-and-trade can help poor companies become richer, by selling energy units they don't need to richer, more productive countries. Perhaps the same could be said for a city structure. Wherein: each person and each business in a district gets a certain amount of credits. They cannot use more than that. If they do, they're fined. However, by buying credits from people who use less energy, they can use as much as they want while helping the poor-folk rise up, shorty, ayyyyye. It also serves to help everyone keep a watchful eye over their own energy use, as behavior change is more likely to occur when laws are enacted. When it doesn't become a choice, as it were.

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