Saving energy is something that is on almost every home-owners mind these days. Whether you are looking for ways to cut your ever-increasing energy bills, or simply want to reduce your carbon footprint, there are lots of devices on the market that promise they can help you.
The question is, do these energy saving devices really work, or are they simply fancy looking white boxes that nothing other than cost you even more money?
The answer is, it depends. Some energy saving devices work by directly reducing the amount of power your appliances or heating systems consume, others rely on power factor correction. Those devices do offer substantial potential savings.
There are, however, some devices that simply highlight the amount of energy you are using. These devices do not offer a direct energy saving, however, they may help you to identify power hungry devices.
How Energy Saving Devices Work
Power factor correction devices work by reducing inefficiencies in the electrical supply. Some kinds of appliances (primarily ones which have electric motors) have “inductive reactive currents” which place an additional burden on the electrical supply.
Power factor correction devices use capacitors to counteract the inductive elements of the power load, improving the efficiency of the power supply. If you have appliances with inefficient motors, then using a power factor correction device will make these more efficient.