If you are thinking of an energy source that is powerful enough to supply energy for a long period, then the sun is the most powerful of all energy sources. The sun’s rays is capable of around 1,000kWh per square meter. It is the best source of renewable energy because it never dies out. Unlike other sources of energy, like fossil fuels, which contribute to air pollution, solar energy is clean and does not contaminate the earth. As responsible people, we need to learn to use environment-friendly sources of energy in order to preserve our home planet.
With solar power, light energy from the sun is harvested to produce electricity using photo-voltaic (PV) panels. Conversion of light energy top electrical energy takes place in the solar inverter system, where a 12 volt direct current is converted to 240 volts. This power can be used to supply the needs of offices and households. A PV panel can produce around 1.5 – 2kWp on average. It can supply power to a fraction of a household’s daily electricity consumption. During summer, when there is longer sunlight, solar panels can supply a larger amount of electricity.
Three types of panels are available for you to choose from: Mono-crystalline, poly-crystalline, and thin-film amorphous silicon panels. The efficiency in which energy from the sun is harvested depends on the type of system you use. Of the three types, mono-crystalline is the most efficient in harvesting energy at 15% of its potential, while silicon is the least efficient harvesting only 7%.
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One thing to remember though it that installing solar systems might require approval from local authorities. Hiring an experiences technician to install your solar system will certainly benefit you in the long run, especially if you have no experience in solar systems. There is no need for too much concern about maintenance, only occasional cleaning is needed for a properly installed solar system to last a long time.
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But despite its low maintenance, solar panels have not been very popular due to a very long payback period. Excess electricity generated by solar power systems in India are not often sold.
Another way to access renewable energy is by using solar water heating panels. Hot water is produced by harvesting the heat energy from sunlight and using it to conduct heat to the water. It can supply the average needs for hot water of a household.
Your solar panel supplier may offer you two types of solar systems: Flat plates and evacuated tubes. Evacuated tubes are more efficient than flat plates, and are more expensive. Heated water is delivered the same way by both systems by pumping heated water into tanks. They are good investments that will last from 10 – 30 years. Your solar panel supplier will be able to tell you what system best suits your needs.