Energy is defined as “the ability to do work.” In this sense, examples of work include moving something, lifting something, warming something, or lighting something. The following is an example of the transformation of different types of energy into heat and power:
We use energy to light our cities and homes, to power machinery in factories, cook our food, play music, and operate televisions. In a home about 70% of the energy used goes to power the air conditioner & water heater.
WHY IS ENERGY CONSERVATION IMPORTANT?
Because of the limited amount of nonrenewable energy sources on Earth, it is important to conserve our current supply or to use renewable sources so that our natural resources will be available for future generations. Our use of fossil fuels also contributes to air and water pollution. Possible impacts include a threat to human health, environmental impacts such as rising sea levels that can damage coastal areas, and major changes in vegetation growth patterns that could cause some plant and animal species to become extinct.
You can help solve these global problems. In the U.S., the average family’s energy use generates over 11,200 pounds of air pollutants each year. Therefore, every unit (or kilowatt) of electricity conserved reduces the environmental impact of energy use. Monitor your family’s usage with products like the Power Cost Monitor [Left: available at SUSTAIN for $149.99]. It helps pinpoint which areas of your home are consuming the most energy.
Another energy alternative is utilizing solar panels. The initial cost of solar power systems is significant but the renewable nature of PV technology, low system maintenance, and numerous tax incentives make solar panel systems an attractive investment for powering homes and businesses.
Did you know that even the President’s big White House used to have solar panels? Check out this video from our friends at YERT