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Change Light Bulbs

Save energy - save money

The price of a cheap energy efficient light bulb is usually about ten times higher than an ordinary light bulb. If you use them correctly they will last about ten times longer making the price the same. The power consumption on the other hand is only about 25-35% compared to standard incandescent light bulbs. As the price of the bulb is practically the same, all the energy saved will save you money. Even if you bought a really expensive model, you would still end up saving money.

Let's do the math...

A compact fluorescent light bulb lasts about 10,000 hours. Let's say you replace one standard 60W light bulb with a 15W energy efficient light bulb. This way you will save 0.045 kWh's of electricity per hour (60W-15W = 45W = 0.045kW). So in the life time of the energy efficient light bulb you will save 450 kWh's of energy. If you pay $0.083 per KWH (average) that makes a total saving of $37! Not bad for replacing one light bulb.

Of course to get that kind of a saving the energy efficient light bulb must really last for the expected 10,000 hours. But even if you only got 5,000 hours, that would still save you enough money to buy a new one. Below I will give some guidelines on how to use and handle energy efficient light bulbs so that they will last as long as possible.

  • If every household in the U.S. replaced one light bulb with an ENERGY STAR qualified compact fluorescent light bulb (CFL), it would prevent enough pollution to equal removing one million cars from the road.  Source:
  • With normal use of four hours a day, a compact fluorescent light bulb will last for years and use only a fraction of the energy (10,000 hours / 4 hours per day = 2500 days = 6.8 years)

Let's do a simple calculation

In 2001 there were 7.1 million households in New York.  If each had replaced one bulb as stated above, the maximum saving in a year would be: 387 kwh's.  This assumes that the bulb was left on 365 days 24 hours a day.  Remember, this is done for ease of calculating.  We would assume that the bulb would not be left on but rather many bulbs would be used and the cumulative hours of all the bulbs will add up to or exceed this number. 

This adds up to a savings of 2.75 billion kwh's. 

How many wind turbines are needed to produce this many kwh's?

If a 1500MW tower produces 3,942,000 kwh's at a 30% efficiency rate (Industry Numbers), it will take 697 1.5mw wind turbines to produce this electricity.  Let's assume that lights are on 25% of a day.  That would mean, if 4 light bulbs were changed to more energy efficient bulbs in every household, we would reduce our need for electricity equal to 697 wind turbines!

Changing the world starts with simple actions. When you replace light bulbs or entire light fixtures in your home with ones that have earned the ENERGY STAR, you help preserve energy resources and contribute to a cleaner environment while saving money and time buying and changing lights in your home.

ENERGY STAR qualified lighting provides bright, warm light while it requires 2/3 less energy than standard lighting, generates 70% less heat, and lasts up to 10 times longer. ENERGY STAR qualified fixtures are available in hundreds of popular styles, including portable fixtures-such as table, desk, floor and torchiere lamps-and hard-wired fixtures such as outdoor, cabinet, suspended, ceiling-mount, recessed, wall-mount, and ceiling fans.  To save the most energy and money, replace your highest used fixtures or the light bulbs in them with energy-efficient models. The 5 highest use fixtures in a home are typically the kitchen ceiling light, the living room table and floor lamps, bathroom vanity, and outdoor porch or post lamp.

The smallest things can add up to a real difference. We encourage you to change out the light fixtures or bulbs at home that you use most with ENERGY STAR qualified models. If every American home changed out just 5 high-use light fixtures or the bulbs in them with ones that have earned the ENERGY STAR, each family would save more than $60 every year in energy costs, and together we'd keep more than one trillion pounds of greenhouse gases out of our air - equal to the emissions of 8 million cars. That's a $6 billion energy savings for Americans, equivalent to the annual output of more than 21 power plants.

FACT: Your home can cause more greenhouse gas emissions than your car. When you use less energy at home, you reduce greenhouse gas emissions from power plants and help protect our environment from the risks of global climate change.  Source:

Be part of the solution and not part of the problem.  Remember, wind turbines are not a cure, they are only a band-aid being put on a much bigger problem.  Demand that money be spent on conservation and ways to conserve vs allowing our tax dollars to be used towards destruction of another one of our natural resources!

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The Registry of Nature Habitats
PO Box 321
Meridale, NY 13806
Copyright 1999 - All Rights Reserved

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