Cool weather has been giving us a nice break on our electric bills, but we all know what’s coming soon.

So now may be the time to try out a free online tool tied to your home’s smart meter that tracks your electricity usage by 15-minute intervals, provides charts of usage over two years and allows you to analyze how many kilowatts that old air conditioner and that new big-screen TV are sucking.

Accessing the tool is easy and can lead to savings on your monthly bill.

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