DO YOU WANT RELIEF FROM
YOUR HIGH RESIDENTIAL ELECTRIC BILLS?

STEMS PROVIDES THIS RELIEF!

Recent advances in technology increase our demand for electrical products that offer convenience and entertainment in our homes. These products create an increased burden on electric utilities to transmit power and on consumers to pay for this power. A large portion of this power cost is due to reactive power.

If you compare the amount of electricity flowing to your home (apparent power) with that which performs productive work (real power), you’ll see a big difference (reactive power). This additional current energizes motor windings and other energy loads in your home. Reactive power returns to the electrical grid as windings de-energize, but is quickly needed again as motor windings re-energize (60 times per second).

Reactive power is needed to run many electrical devices, but causes harmful side-effects on your household appliances and your electrical wiring. More current flows through your electrical system than is needed to do the required work. Excess power dissipates in the form of heat as reactive current flows through resistive components (motors, wires, switches and transformers). Keep this in mind! Whenever energy is expended, you pay for it. It makes no difference whether the energy is expended in the form of useful work or is wasted as heat. You still pay for it.

You can determine how much reactive power your electrical devices use by measuring their power ratio between real power and true power. A power factor of 1 (i.e. 100%) ideally means zero reactive power. Homes typically have overall power factors in the range of 70% to 80% depending on which appliances they may be running. Newer homes with the latest in energy efficient appliances can have an overall power factor in the nineties.