Energy Savings Thru Efficient Lighting
We started 2009 with various leaders, elected representatives, government agencies, and the public at large discussing the need to cut energy costs, increase fuel efficiency, recycle, and reduce pollution. One of the easiest ways of doing this is by replacing regular light bulbs with compact fluorescent bulbs. They are more expensive in terms of dollars to buy, but their longer life-span, more efficient use of energy and lower operating cost is estimated to save 10's of BILLIONS of dollars per YEAR. If it merely delays or avoids the need to build two or three power plants then this investment will pay for itself.
Why do some traffic signals look like dots?
a. a hallucination
b. to frighten birds
c. a cluster of tiny lights
d. recycled fish scales
The answer is c.
The dots you see in many traffic signals are LEDs - dozens of tiny Light Emitting Diodes clustered together to create one large traffic signal. LEDs are used because a LED light consumes 90 percent less electricity than conventional light bulbs and therefore save energy and money. And because LEDs can last 10 years or longer, they also save on maintenance costs
How many light bulbs does it take to save $10 billion?
a. one
b. one in each home
c. 25 million
d. 10 billion
The answer is b.
Nearly 20 percent of our home's electricity use goes to lighting. Choosing energy-efficient lighting is an easy way to start using energy wisely. Switch out a single light bulb or fixture in your home to a light that's earned the government's ENERGY STAR for energy efficiency. Most electricity in the United States is generated by burning fossil fuels such as coal or oil, which release greenhouse gases into our air. So, when you use less energy, you help prevent global climate change by reducing greenhouse gas emissions.
a. 5 percent
b. 30 percent
c. 65 percent
d. 90 percent
The answer is d.
The typical incandescent light bulb turns only about 10 percent of its electricity into light. A typical light bulb, when on, is hot. That's because 90 percent of the energy is wasted as heat, which means it isn't very energy-efficient. EnergyStar-qualified lighting, such as compact fluorescent bulbs, uses two-thirds less energy and generates 70 percent less heat than an equivalent incandescent light bulb.
http://www.epa.gov/epahome/enviroq/index.htm – The source of this information was our own government's EPA website where I borrowed all this information in the public domain.
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