How Electric Utilities Charge Us?Įlectric Companies are charging us by the real power we consumed. I am very sure that they don’t make it because they will be showing a constant real power drawn by the appliance.
You may challenge these persons to get a real power meter so that a real power will show. They are not engineers or really skilled and knowledgeable on electricity related things. I don’t even think that these sales personnel know about power factor. On the demonstration, they are not emphasizing this. Without the energy saving box, the current is high and it is lower once the box is plugged in because the box itself is making the power factor higher. The higher the power factor, the lower the current or the lower the power factor, the higher is the current. Therefore, the above equation is only dependent to the power factor PF. The real power is constant as well as the wall outlet voltage is fixed. For instance, an electric fan is rated 100W. The real power always includes the power factor on it as illustrated in equation 2 above.Īctually, the real power is fixed. This is not yet the real power consumed by the electric fan. They multiply the current to the voltage and claimed that this is the power consumed by the electric fan. What happened? How this is possible? BUT WAIT…How They Perform the Demo?Īre they showing evidence on actual power consumption with and without the box? The answer is no! What they did is only getting the current drawn by the appliance. It is very amazing and totally convincing for the people who are not technically knowledgeable. With the power saver box plugged in, the current become very low. Advertisers emphasized this to the crowd. Without the Electricity Saving Box plugged in, the current reading is high. Ordinary people are surely amazed and purchase one but after months of using the device, they do not realize the savings as advertised! Without the Power Saving Box Plugged In The current measured once the energy saving box is plugged in is definitely lower than the initial current. Initially without the energy saving box, the current on the multimeter is high. They use the multimeter to measure the current that drawn by the electric fan with and without the power saving box. Most of the times, the sales representative bring with him an electric fan and a multimeter. How Vendor Perform Demonstration on the Claimed Electricity Saving Box to Make People Believe Their Claim The electricity meter used by electric utilities is capable of detecting the voltage, current and power factor and able to compute for the real or true power consumption. The real power our appliances consumed is following equation 2 above which is the product of voltage, current and the power factor. The electric distribution companies are charging us through real power we consumed, not with the apparent power. How the Energy Companies Charge Us on our Usage PF = Real Power / ( V x I ) = Real Power / Apparent Power Equation 4 Real Power = Apparent Power x PF = V x I x PF Equation 2 Power Factor (PF) – this is the multiplier to the apparent power to get the real or true power Voltage (V) – this is the voltage coming out from the wall outletĬurrent (I) – this is the current flow to the appliance or device once it is plug in to a wall outlet Real Power – this is the true power each appliance consumes and this is the power considered by the electric utilities to charge to their customers.Īpparent Power – this is the total power including the power losses in the transmission lines or simply the power delivered by the electric utility. Electricity saving box scam revealed this time! Helpful Terms to Help Explain this Electricity Saving Box Scam As an electrical/electronic engineer, practitioner and hobbyist let me tell you and share a little education how this advertised electricity savings box works and to reveal its great scam. Ordinary people (with no background in electrical or electronics engineering or related discipline) are surely convinced by their lies. Advertisement said a 30-60% decrease in electric bill every month with matching demonstration that the current is actually become lesser when the electricity saving box is plugged in.
Many people became victim of this product. But let us uncover the reality of this electricity saving box scam.Įlectricity saving box or energy saving box or a.k.a power saver that plugged to the wall outlets (as simple as that) is a real scam. With very convincing demos and promising very huge savings in the monthly bill are the most often point of sales of these advertisers.
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