An Easy Way To Save Money On Lighting Costs
Occupancy sensors are common in schools, offices, and many other commercial buildings. They work off of a motion sensor that tells the switch whether there is someone present in the space or not. When someone walks in front of the switch or a hand motion goes in front of it, it turns the lights to the "On" position. More importantly, it turns lights off after it does not sense motion anymore in a space saving energy overall.
The occupancy switches, like the one pictured to the right, all have a manual switch to override the occupancy sensor if necessary. These units that are single pole cost roughly $25 at almost any hardware store. There are occupancy sensors that can be tied into 3-way connections also. They cost in the range of $50 to $100 per sensor. Average savings is between 10 and 25% on the lighting portion of the electric bill.
This is not only efficient, it is just one less thing to do when you leave a room. You may get so used to it, you will forget where the switches are.
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