Energy...

How much electricity do you use when you turn on a light? When you're watching TV? When you wash your dishes? How about if you're doing all three at once?

The Energy Detective ("TED" for short) from Energy, Inc., can answer these questions, helping you not only to see how much electricity you are using in your house at any given moment, but also to predict the size of your monthly electric bill.

Once hooked up, TED monitors your electricity usage, with just a two-second real-time delay. It also tracks your monthly usage, and calculates the exact amount you are spending on your electricity.

The basic TED unit costs $139.95 (more advanced models run up to $209.95) and can be installed in 10-15 minutes ("by an experienced homeowner or qualified electrician"). You can also order additional software called Footprints ($44.95) which allows you to track your usage on your PC.

So why install a TED? An energy monitor like this allows you to see exactly how much juice your house is using. Hook it up, and then you can walk around your house to see how much difference your TV makes, or find the "phantom loads" of so-called "vampire devices," the ones that keep using energy even though you think they are "off."  The company says a well-aware homeowner can use the information from TED to make the device pay for itself in a matter of months.