Saturday, August 05, 2017

How to use power in an efficient way at home to reduce Electricity bill

Power savings is often called alternate energy or an alternate source of energy. Five years from now, if we are able to cool the same amount of food using 20 per cent less electricity, we could say that we gained 20 per cent more electricity or power capacity because the 20 per cent savings could then be used by other people, equipment or appliances requiring electricity. 

Globally, energy efficiency is a big component of energy conservation. It allows us to have the same quality of service (lighting, cooling, heating, entertainment, productivity, mobility etcetera). 

The power an appliance uses is measured in Watts or kiloWatts (1000 Watts). So if you see ‘W’ or ‘kW’ on your appliance's back or its packaging, that shows you the amount of power it uses. For instance, an 18W energy saver bulb uses 18 Watts of power in an instant. If you run that bulb for five hours, the amount of electricity it uses is: 

kWh is the unit of electricity most companies use globally to bill their customers. 

If your appliance does not show how much power it uses, it should at least mention the amount of current it draws in Amperes (Amps or A). In that case, you can easily determine the power it uses:

 In Pakistan, the voltage provided is officially 230V (240V for KESC), however, in reality, it can fluctuate between 200 and 240V, based on the connection. But assuming the official value of 230V, we can easily calculate how much power our 1-ton AC would use if it draws 5.5 amperes of current. 

in this article, I put forward some useful suggestions how to save power in homes so that useful power can not be overuse and electricity bills will be reduced. 

1.Electric heaters might look innocent but they can consume a large amount of power very quickly. The classic example is an oil column heater used to heat a room overnight. You might think the heater doesn't use much… Until you get your next electricity bill!

 For example, if you had just one 2 kW electric heater running for 10 hours per day it would consume 20 kWh (or about $5 per day in electricity). 

So, despite the fact that portable electric heaters plug into normal power outlets, you should be very careful how much you use them. If you are going to use an electric heater try using a foot mat heater like this or an electric blanket. 

At least you can see a portable electric heater. Some of the worst electric heating culprits remain invisible to the user. 

Examples of this include under floor electric heating, ceiling electric heating, and heated towel rails. Heating circuits like these can rack up high bills very quickly because they have a high capacity and are often left running all day. Some types of in-slab or ceiling electric heating can be left on without the occupants even noticing. 

2. In the typical home, air conditioning uses more electricity than anything else—16% of total electricity used. In warmer regions, AC can be 60-70% of your summer bill. For central AC, your thermostat might already have a timer built-in. If not, you can replace your thermostat with a programmable one. 

For window unit AC's, many modern units have a timer built in. If not, you can use a simple plug-in timer if your AC has a mechanical On/Off switch (i.e., you physically move it into a different position when you turn the AC on). But plug-in timers usually don't work if the On/Off switch is electronic (i.e., you push a soft button on a panel to turn the AC on or off). 

3.Heat/cool only the parts of your home that you're using. Heating/cooling your whole house is more expensive than just part of it. If you're not using your whole house, don't pay to heat/cool the whole thing! Instead, use space heaters and AC in the rooms that you actually use. 

4.Turn it off when you don't need it. Turn your heat off (or way down) at night, and when you're away from home. it does not cost more to reheat the home than it does to constantly heat it. 

5.Most homes that have a swimming pool will find that its electricity consumption is responsible for more than 30% of their energy costs. 

Swimming pools use electricity in two main ways. Firstly, the filter pump is used to circulate water and run the pool cleaner. Secondly, the heating system, if present, requires additional electricity for its pumps. 

Pool shops and swimming pool installers are notorious for exacerbating this problem. Despite considerable improvements to swimming pool pump efficiency over the years, they still install high capacity, over-spec filter pumps. Also, because they don't have to pay your electricity bill, they set the pump to run for 8 hours or more per day. Running a pump for this long is simply not necessary in most cases. 

Additionally, many swimming pool owners think they are saving energy by having solar pool heating. Unfortunately, this is not usually the case. Although the sun is heating the water, circulation pumps are still needed to capture and use this energy. 

6.Lighting is one of the easiest areas to save in. You can start saving a whopping 70-90% right away by simply screwing in new LED or CFL lights. And if you're concerned about mercury from CFL bulbs breaking, you can either use a CFL that has a plastic cover or use an LED bulb instead 

7.In most homes, the refrigerator is the second-largest user of electricity (13.7%), right after the air conditioner (14.1%). (Dept. of Energy) With most appliances, you save energy by using them less, but you can't very well do that with your fridge. The main way to save money with your fridge is to use an efficient model. New fridges aren't just a little more efficient, they're incredibly more efficient. 

8.A typical desktop computer uses about 65 to 250 watts, Add another 20-40 watts for an LCD monitor, or about 80 watts if you have an old-school 17" CRT. And don't forget related devices. My cable modem uses 7 watts.Most laptop computers use about 15-60 watts, far less than desktops. 

9.Most TV's use about 80 to 400 watts, depending on the size and technology. use LCD or led tv for power savings. 

10.use correct values of capacitors in your fans, fridges, motors I;e in your inductive loads so that your power factor remain 1 other wise home wiring will be over loaded.

11. dry your clothes by natural heat because iron is heaviest load in your home it can take up to 10 A current. 

12.check your home wiring after 1 year for any loop wires or shorts or burning switches. use circuit breaker instead of fuses which might be placed incorrectly by heavy wires. 'save power even if you can buy it easily, don't waste it'. save it for other peoples because money can not light up your home or run your water pump it is the power that can do it for you.

This Article has been written by Mr. WAQAR AHMED, Dept of applied physics {major in electronics} uok.

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