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TECHFOCUS

Going the green way

Nah id Akhter
ENERGY is the ultimate essence of life itself. Unfortunately, due to increased demand, it is slowly becoming very limited in supply, which is probably one of the evils of modern technology. This, combined with the impact of global warming has necessitated the need for energy conservation and use of renewable energy sources.
So you would say "Ok, granted that energy conservation helps save the enivronment, but what’s in it for me?” . Well, even if you just ignore the fact, that we, as citizens of the World and our next generation are eventually prone to the effects of climate change, you simply cannot ignore the amount of money you could be saving on your utility bills. Given the recent trend in fossil fuel prices, electric costs world wide are expected to increase further in years to come. Besides, who isn't already wary and miserable from our regular load-shedding? Don’t you think it's about time we do something about it?
We, as citizens can do a lot to contribute to this move in a wide variety of ways. Some have been outlined below:
Energy saving lamps, like Compact Fluorescent Lamps (CFL) may be purchased, instead of the standard incandescent lamps, which would provide much higher energy efficiency. If a building that runs entirely on fluorescent light bulbs achieves the same level of illumination as a building that runs on incandescent light bulbs, it would consume only 30 ’. of the electricity -70% of the energy is saved. Th^x also means’ utility bills will be only 30% of the original. Now we're talking money!
Energy-efficient appliances may be purchased. A number of Brands are now providing this kind of an energy' efficiency rating in their electrical appliances, for example. Energy- Star, which is a label created by the U.S. Environmental Protection Agency' and the US Department of Energy to help consumers save money and minimize air pollution. Its logo may be found on washing machines, computers, refrigerators, etc.
An appliance receives the Energy’ Star rating if it is significantly more energy efficient than minimum standards, as determined by standard testing procedures. Most computer monitors available in Bangladesh today have an Energy Star rating. However, there e-c -rr' few nies th^ ha.e GuS rating on J.e.r appliances. Policies should be framed to ensure that more of such products are imported and available here.
Our already existing appliances may be used more efficiently. You will be surprised to know that the refrigerator is the
single biggest power consumer in most households. To increase its Efficiency, the coils in the back of the refrigerator should be cleaned twice a year to maximize efficiency. It should be ensured that the seal of the door gasket isn’t broken by debris or food and that the door of the fridge isn't opened too frequently. Your refrigerator should not be located near any appliance that emits heat and should not be exposed to direct sunlight. It should also be ensured that airflow around tire refrigerator is not obstructed. Foregoing features like auto defrost, ice makers, and heaters to control condensation can not only save up to 60% more energy’ and energy' costs, but save you money on the purchase price as well.
We’re not just talking here about saving electricity, but energy' in general. In areas of Bangladesh, including Dhaka, where natural gas is available in -F.-r/?.'.’ f - cooking, people nave a tenuency of keeping stoves on for hours to drystheir clothes. Since, they have to pay a fixed amount for the gas every month, how much gas they use isn’t an issue for them to consider at all. Such kind of wastage should be avoided.
Furthermore using lids on
pots and pans can save gas, since cooking can then be done at lower settings. Pilot light and burner flame on gas stoves should be blue. If the flame is yellow, ports need to be unclogged or adjusted. Ports can be cleared with pipe cleaners. If you can afford it, use a microwave oven. They use only one-third to half as much energy as conventional stoves.
Washing machines should be loaded with a full load of clothes, as far as possible. Moreover, make sure the water level matches the size of your load. There is no point filling up the whole tub for a few clothes. Of course, newer machines have automatic water level settings, which adjust to load size. Interestingly, using more detergent than required actually makes the machine work harder and use more energy.
Air Conditioner filters should be cleaned regularly, as this will reduce fan usage and save electricity. Since Air Conditioners use up a lot of energy, it would be wiser to use fans more often or a combination of your fan and Air Conditioner so that there is lesser load on the Air Conditioner to cool the room. When turning on your air conditioner, avoid using the coldest setting. Let the air
conditioner warm up for a while before lowering the temperature setting. The room will cool just as . fast.
Computer monitors should be switched off when not in use. That screen-saver will just take up a lot of energy in exchange of only visual pleasure while no one is there to actually see it! In fact, not just the monitor, any computer component should be switched off when not in use. Even machines on standby use up to 30 watts of electricity. Laptops use 10 per cent or less of the electricity consumed by typical desktop computers. When buying a laptop, look for systems comprised completely of 3.3-volt components (processor, memory and LCD). These systems use 40 to 50% less energy than 5.0-volt systems.
Did you know that around 20% of the electrical power used by gadgets in our homes is consumed when they are not in use? Music systems, TVs and computer systems are kept on ‘standby’ mode all day long in many households, when one can easily just avoid that wastage by switching off the appliance altogether. Similarly, lights, fans, Air Conditioners and TVs are mercilessly left running for hours, even when not required. Why not just
take a small step to remind our selves to switch them off, when coming out of a room?
Offices and Shopping Malls draw up a high amount of electricity In Bangladesh. The Government has already taken a step towards this by enforcing stringent laws to limit market and office timings. Even then, individuals should try to make their own little contribution to con sciously save energy while work ing in the office. You take the first step and the others will follow. Laws have also been enforced to ban the use of decorative lights, but how many of us actually follow? Even today big buildings can be seen smothered with colorful lights blinking up and down to announce a wedding taking place. Wouldn't a huge beautiful banner or flowers do the same?
The Power Division is presently preparing a draft Energy Conservation Act which will include provisions for ensuring efficient use and conservation of energy in building complexes, like insulating a building from sunlight so that less amount of energy is needed to cool or heat the rooms, usage of efficient insulation materials, use of energy-efficient lights and installation of energy-efficient appliances.
The Government has also undertaken several programs for off-grid electrification through solar home systems, on a small-scale. A number of NGOs, like the Grameen Surja Shakti Sangstha are working for the promotion of Solar Home Systems in remote rural areas of Bangladesh, which are in complete darkness, after sunset, by providing an LEIF based lighting System that is non-polluting. So far, more than 250 thousand Solar Home Systems have been installed. Financial and technical assistance is also being extended by the Government to encourage such projects.
Other options for renewable energy sources include wind and natural gas. The Power Development Board has already installed a wind turbine near Feni and Kutubdia. More such projects should be undertaken. IDCOL is implementing a National Domestic Biogas and Manure program, under which, it is estimated that a total of 60 thousand domestic biogas plants will be installed.
So, let us all get together, both citizens and the Government and work in unison to fight the energy crisis, thereby providing a safe and secure future for our next generation.
References: eartheasy.com, inaugural speech by Chief Advisor Fakhruddin Ahmed at the National Workshop and Exhibition on Energy Conservation and Renewable Energy Programmes.