Posts Tagged ‘solar power’

What is Solar Power and why the need for it?

Posted on:December 6th

Here is where Solar Power comes in, almost as a savior. Power generated through solar systems is renewable, sustainable and environment friendly. Solar energy is often called “alternative energy” to fossil fuel energy sources such as coal. Solar is not just a ‘green product’ but a ‘green way of living’. Solar power systems are simple and easy to maintain as against the popular belief that they are complicated. Let me briefly and in simple terms explain how solar systems work.

 

A solar power system uses photovoltaic (PV) technology to harness the sun’s rays, converting sunlight photon energy into electrical current. Solar panels produce energy from daylight, they still produce electricity on cloudy or overcast days. Solar power can be used directly in your home to power lights and appliances – or exported to the electricity grid. At night when your panels can’t produce electricity, you draw your electricity from the battery bank. A solar power system contains of many major elements: 1) Solar Panels, (SPV modules) :- which are usually mounted on a rooftop or terrace. 2) Charge Controller :- This electronic device that regulates the charging of batteries. 3) Batteries :- The solar power thus generated during daytime needs to be stored for use during non–sunny hours. This is done by batteries and 4)  Inverter:- To convert DC generated by the SPV modules to AC to power the appliances that run on AC power. The most popular SPV systems are made of mono or polycrystalline silicon cells or using thin film. The system is easy to maintain and works for upto 20-25 yrs. The initial installation cost is recovered within 5-8 yrs, after that power is free for the remaining years.

 

solar power

Posted on:December 5th

What is Solar Power and why the need for it?

Due to global warming, our planet is facing climatic alterations. The summers are getting hotter and longer. As the temperatures soar, so does the power consumption. Add to this the population escalation and what we have on our hands is a looming power crisis. In many cities, towns and villages, load shedding is an everyday ritual and some rural areas, even to this day, are in complete darkness.  As hard as the government tries, it has become difficult to bridge the gap between supply and demand of power. Hence, it has become imperative to turn to alternate means of power that is sustainable.

Wind & Solar Power Facts

Posted on:June 9th

Wind power

1. In 200 B.C., people in China and the Middle East used windmills to pump water and grind grain.Wind Mill

2. The first modern wind turbine was built in Vermont in the early 1940s.

3. Wind farms currently produce enough electricity to meet the needs of more than 600,000 families in the United States.

4. The largest wind turbine in the world, located in Hawaii, stands 20 stories tall and has blades the length of a football field.

5. An average wind speed of 14 miles per hour is needed to convert wind energy into electricity.

6. One wind turbine can produce enough electricity to power up to 300 homes.

Solar power

1. More than 10,000 homes in the United States are powered entirely by solar energy.

2. Enough sunlight falls on the earth’s surface every hour to meet world energy demand for an entire year.

3. Silicon from just one ton of sand, used in photovoltaic cells, could produce as much electricity as burning 500,000 tons of coal.

4. In the 1830s, the British astronomer John Herschel used a solar collector box to cook food during an expedition to Africa.

5. Albert Einstein won the Nobel Prize in 1921 for his experiments with solar power and photovoltaics.

6. The largest Concentrated solar power (CSP) solar power plant is in the world located in the Mojave Desert of California.

7. The largest photovoltaic (PV) solar power plant in the world is located in Golmud Solar Park in China.