Most of us are guilty of it – leaving lights on when we leave a room. It’s easy to forget, especially if you’re in a hurry, but those little forgetful moments can really add up. In fact, lighting is one of the biggest energy wasters in the home, accounting for about 15% of the average home’s electricity bill.
So, just how much electricity is wasted by leaving lights on?
To put it into perspective, the average light bulb uses about 0.06 kWh of electricity per hour. So, if you left a light on for 10 hours, that would be 0.6 kWh, or about $0.07 worth of electricity. Not a lot, right? But what if you have 10 light bulbs in your home and you left them all on for 10 hours? Now you’re looking at $0.70 worth of electricity – and that’s just for one day!
Over the course of a year, those 10 light bulbs could waste more than $250 worth of electricity if they’re left on for 10 hours a day. And that’s just for 10 light bulbs! If you have 20 light bulbs in your home, you could be wasting more than $500 a year.
But it’s not just the financial cost that you should be concerned about. Leaving lights on also wastes a lot of energy, which is bad for the environment. The average light bulb emits about 14.6 lbs of carbon dioxide each year. So, if you have 10 light bulbs in your home and you left them all on for 10 hours a day, you would be emitting 146 lbs of carbon dioxide into the atmosphere each year. That’s the same as driving a car for about 30 miles!
So, next time you leave a room, make sure to turn off the lights. It’s good for your wallet and good for the environment.