One of my readers asked that question recently. If you are talking about an old style light bulb the answer is no. When the filament in the bulb burns out there is a gap in the electric circuit. Just like when a fuse blows. No electrons can jump the gap so no power flows.
Leaving a burned out bulb in a fixture prevents anyone from sticking fingers into a live light socket. It is good safety idea when there are children of all ages around.
Compact Fluorescent Lamps may be a different story. Fluorescent lamps need a boosted voltage so there is a “ballast” inside the base of the “bulb”. Ballasts used to take a measurable amount of power to do their job in addition the power used by the lamp.
Modern electronic ballasts use very little power. Next time I get my hands on a burned out CFL, I will test it with my Kill-A-Watt meter. Trouble is I may have to wait a long time for one of my CFLs to burn out.
If a CFL quits working it may be the ballast that burned out stopping the flow of electricity completely. If the ballast is still good but the lamp is the part that stopped working it may still use a little power. The cost may be a penny or two a year.
Click here for a free money saving report titled HOW SAVE MONEY ON YOUR NEXT HEATING BILL
If you enjoyed this post, then make sure you subscribe to my RSS Feed or to the ENERGY BOOMER by email.