Environmental Engineering Reference
In-Depth Information
as its predecessor contributes to landfill pollution and wastage of natural
resources used to construct its replacement [10].
6.3.2.8.6 Heating and Cooling Systems
Energy Star qualified heat pumps, boilers, air-conditioning systems and
furnaces are available. In addition, cooling and heating bills can be signifi-
cantly lowered with air sealing and duct sealing. Air sealing reduces the
outdoor air that penetrates a building, and duct sealing prevents attic or
basement air from entering ducts and lessening the heating/cooling sys-
tem's efficiency. Energy Star-qualified room air conditioners are at least
10% more energy efficient than the minimum U.S. federal government
standards [11].
6.3.2.8.7 Home Electronics
Energy Star-qualified televisions [12] use 30% less energy than average.
In November 2008, television specifications were improved to limit on-
mode power use in addition to standby power, which is limited by the
current specifications. A wider range of Energy Star qualified televisions
will be available. Other qualified home electronics include cordless phones,
battery chargers, and external power adapters, most of which use 90% less
e n e r g y.
6.3.2.8.8 Lighting
The Energy Star is awarded to only certain bulbs that meet strict efficiency,
quality and lifetime criteria. Energy Star qualified fluorescent lighting uses
75% less energy and lasts up to ten times longer than normal incandescent
lights.
Energy Star Qualified LED Lighting:
1. Reduces energy costs: uses at least 75% less energy than incandes-
cent lighting, saving on operating expenses.
2. Reduces maintenance costs: lasts 35-50 times longer than incan-
descent lighting and about two to five times longer than fluorescent
lighting—no bulb replacements, no ladders, no on-going disposal
programme.
3. Reduces cooling costs: LEDs produce very little heat.
4. Is guaranteed: comes with a minimum three-year warranty, far
beyond the industry standard.
5. Offers convenient features: available with dimming on some indoor
models and automatic daylight shut-off and motion sensors on some
outdoor models.
6. Is durable: will not break like a bulb.
