In recent years, the technology of our cars has advanced at a more rapid rate than the technology of our homes. A new car’s dashboard has gauges that display all kinds of information, including the amount of fuel in the car’s tank, the oil pressure, the electrical system voltage, and sometimes the tire pressure. Many new cars even have a real-time fuel-efficiency gauge that displays miles per gallon.
If you’re interested in comparable information about your home, you’ll probably have to go down to the basement and look at the float gauge on the top of your fuel oil tank. Then you can go outside and read the gauge at the top of your propane tank. Next, stick the prongs of a multimeter into an outlet to verify your electrical system voltage. And if you want electrical use data, you can wait until you get your utility bill at the end of the month.
It will probably be many decades before most homes have such car-like features as electrically operated windows or dashboards that indicate whether the doors are latched. But technology-savvy homeowners can already install a real-time whole-house electricity meter with a display for the kitchen or living room wall. Often referred to as “energy dashboards,” such monitors are available for less than $200.
You can even buy a more sophisticated dashboard that displays electricity, natural gas, and water use — although the cost of the required monitoring equipment rises steeply with these added features, into the thousands of dollars.
Documented energy savings
Studies have repeatedly shown that homeowners do a better job of conserving energy if they get real-time energy-use feedback.
If you can see how many kilowatts your house is consuming, you’re more likely to check whether you accidently left the basement lights on.
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