With an increase in population comes an increase in electric and chemical power consumption. With now over 6 billion people on earth, how will we provide power to the people? The current largest sources of energy are the combustion of coal, oil and natural gas. They will last quite a while but will probably run out or become harmful in tens to hundreds of years. In President Bush’s State of the Union address, he called for an energy policy which includes drilling in the Arctic National Wildlife Refuge. WE do not have to succumb to this. It is time to “go out with the old and in with the new”. Instead We should use America’s technological know-how to develop newer, cleaner sources of energy, such as solar and wind power, and make our cars, homes and appliances more energy efficient.

The sun is another means by which we can attain energy. A relatively new form of solar power, the photovoltaic cell, converts sunlight directly into electricity. The PV cell is a semiconductor device, closely related to a computer chip, that relies on the photoelectric effect. PV cells were first developed in the 1960s as a power source for orbiting spacecraft in the U.S. space program. They are now widely used as a power source for satellites, remote communications systems, traffic signs, and consumer electronic devices such as pocket calculators and watches. The main obstacle to the increased reliance on solar power is the cost. Most experts believe the cost of solar cell

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