Many people begin to look into solar energy for environmental reasons. Solar does not add to the global warming problems and it reduces a person's dependence on fossil fuels. Other prominent benefits include reducing local air pollution levels, as well as using power that doesn't emit carbon dioxide, methane or other harmful gasses that hurt the atmosphere. Solar power can also reduce the harmful effect of nonelectric power sources, such as batteries. For example, many disposable, dry-cell batteries are used for radios and flashlights, and they are typically lead-based. If they are replaced by rechargeable solar batteries, the contamination of lead from leaching batteries may be prevented.
A solar power system for a typical 3-bedroom home will offset 50 tons of carbon dioxide over 20 years, saving the equivalent of...
While the upfront cost of installing solar energy packages are more expensive than traditional electricity, many homeowners are able to save money. As more and more people are interested in this technology, the installation prices will drop as well. Once the installation is complete, solar energy is free. Some people report the system paying for itself after 10 years.
Historical data indicates that, when you install a solar photovoltaic (PV) system, you will automatically recoup nearly 100 percent of your investment. If you spend ZAR 25,000 on a PV system, your home's value will increase by around ZAR 25,000, maybe even more if utility rates increase precipitously. In short, if you install solar, you'll be relatively risk free from exploding energy costs. If you install a solar PV system that produces as much electricity as you use in your home, you'll never have to worry about paying another electric bill. And you won't have to worry about utility rate increases.
In some developing countries without power electricity, kerosene is the power source of choice for both lighting and cooling purposes. According to the Solar Electric Light Fund, kerosene lamps pose several health threats including fume inhalation problems and fire hazards. Photo voltaic provides brighter lighting and better temperature control in solar electric refrigerators. This type of energy can also power VCRs, DVD players and televisions so that rural health workers gain and learn about new medical procedures and preventive care.