Q. Does Voltage Stabilizer Increase Electricity Bill?

Stabilizers of voltage use electricity. It is difficult to pin down exactly how much electricity they use. It's the cheaper model you'll have problems with of course. They will jack up your utility bills. It's more efficient to get a more expensive model. At the most they'll use up 5% of the total capacity. It consumes more energy as you use it more. Equipment that requires a particular voltage supply is intended to function correctly.