If you're tired of keeping track of how much you're paying for energy, try letting artificial intelligence do it for you. Several start-up companies aim to help people cut costs, flex their muscles as consumers to promote green energy, and usher in a more efficient energy grid - all by unleashing smart software on everyday electricity usage. Several states in the US have deregulated energy markets, in which customers can choose between several energy providers competing for their business. But the different tariff plans, limited-time promotional rates and other products on offer can be confusing to the average consumer.
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