Environment

Bright Hopes For The Future Of Solar Energy

Research is shedding new light on an unexpected source of energy for heating homes and generating electricity-the sun.

What is the Primary Source of Energy Found on Earth?

The sun-directly or indirectly-is the primary source for most forms of energy found on Earth. Solar energy is clean, abundant, and renewable.

What is the History of Use of Solar Energy?

Though we think of solar power as a discovery, ancient civilizations found innovative ways to use solar energy. Among them, the Greeks, Romans, and Chinese all developed ways to use solar warmth for their homes, including using southern exposures to maximize solar heating and making use of solar lighting.

Now, thanks to innovative technologies, it’s possible to capture this energy, concentrate it, store it and convert it into electricity.

What are Photovoltaic Cells or PV Cells?

Sunlight is converted into electricity using solar cells. Solar cells are also called photovoltaic cells, or “PV cells” for short. PV cells were first developed in the 1950s for use in American space satellites. Today, they are used for power needs ranging from telecommunications to rural electrification. PV cells can be found on items we use daily, such as calculators, flashlights, radios, landscape lighting, and children’s toys.

Portable PV units are also available for emergency and disaster use, such as keeping cell phones and small appliances charged when the user is away from the grid or during blackouts.

Consumers can harness the power of the sun for themselves more easily than ever. Solar panels you see on buildings and homes have been available on the market for decades. New systems-which incorporate solar into roofing shingles-are now aesthetically pleasing, efficient, and durable.

2006 ushers in new tax credits for solar energy technologies and consumers may also be eligible for state rebates.

What are the Ways to Use Solar Light?

Sunlight isn’t only used to generate electricity. It is also used to heat water, which can be used to warm homes and businesses. Solar-powered radiant heating systems run some industrial processes and drive turbines to generate electricity. Many solar thermal technologies have been used in homes for decades and can last more than 20 years.

Hope for Future From Solar Energy Technologies

Experts believe that solar energy technologies can benefit this nation in many ways. They have the potential to help diversify this country’s energy supply, reduce the dependence on imported fuels, improve air quality, offset greenhouse gas emissions and stimulate the economy by helping to create jobs in the manufacturing and installation of solar energy systems.

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