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Common Facts About Solar Energy

The earth receives more energy from the sun in just one hour than the world uses in a whole year.

Solar panels are guaranteed typically for 25 years and have a life expectancy of at least 50 years.

The solar energy incident on earth for just one hour is more than enough to satisfy the global energy needs for a whole year.

If we cover a small percentage of Sahara Desert with Solar Panels, we can cater to the electricity requirements of the earth.

In a study conducted by Shell it has been predicted that 50% of the world’s energy will come from renewable energy sources by the year 2040.

Japan Consumes 50% of the total solar panels manufactured worldwide.

The most earliest solar cell cost $286 per Watt in 1954, $100 per watt in 1971, $7 per watt in 1971 but now it is very affordable at $1 to $5 depending on the technology.

Leonardo Did It

While solar panels are a very 21st century thing, did you know Leonardo Da Vinci conceptualised the use of solar power back in his day? He conceived using solar power heated water for industrial use even in the 15th century!

The Largest Solar Plant

The largest solar power plant is located in the Mojave Desert in California. The solar plant generates 90 percent of the world’s commercially produced solar power!

Not All Panels Are The Same

There are two types of solar panels: Photovoltaic or PV panels. These panels convert sunlight into energy; Solar Thermal panels. These panels work by absorbing the heat. Water is then circulated through it to heat for domestic use purposes and even swimming pools.

More People Are Going Solar

Over the past 50 years, production of PV panels has increased dramatically – particularly in the past 5 years. From 2008-2009, residential solar panels doubled their solar electricity production, at the same time that the home solar market also doubled in size.

Less Pollution with Solar

Using solar panel powered energy means no air or water pollution and no greenhouse gas emissions.

More Energy Efficiency

Of all the energy solar panels absorb, only 15 percent can be converted for use. However, don’t be fooled by the 15 percent energy conversion rates for solar panels. Australia receives more than 15,000 times the sunshine it could possibly use; so even a 15 percent conversion rate translates to 2000 more times the energy than we need.

Save The World

It’s no secret that solar energy is the way to a more sustainable future. Solar panels can produce 1-kilowatt (KW) solar energy unit to replace the equivalent of burning 170 pounds of coal and 300 pounds of carbon dioxide.

Germans Are Beating Us

Germany is known to be the leader in solar panel installations. The others in the top are Italy, Japan and USA.

Cheaper than You Think

Solar panel installations are cheaper now than before with a 40 percent drop in prices. Also, government rebates and incentives make going solar easier than ever before!

Fact number one about solar power

Families in ancient Greece built their homes to get the most sunlight during the cold winter months. The ancient Greeks believed that the sun was the god Helios and he drove his chariot around the earth towards the sky in the morning and in the evening back again.

Fact number two about solar power

The discovery of the photovoltaic effect is credited to the French physicist Alexander-Edmond Becquerel in 1839.

Fact number three about solar power

In 1921 the Nobel Peace Prize was awarded to Albert Einstein for experiments with solar power and photovoltaic.

Fact number four about solar power

Way back in 1955 The American Solar Energy Society held its first meeting in Phoenix and attracted the first Russian scientist to the US following the second World War. There is film footage showing early photovoltaic which was developed for NASA, solar cookers and solar heating panels.

Fact number five about solar power

The first solar flight took place in 1974 in California by an unmanned plane which was developed by two brothers Roland and Bob Boucher.

About 30% of the radiation that we receive from the sun at the upper atmosphere is reflected back into space. The rest is absorbed by the clouds, oceans and land masses here on Earth. Yet even in these conditions, the energy that our planet gets from one just hour of sun exposure is equal to the amount of power that humans use in an entire year.

Fact number six about solar power

In 1975 the first solar boat was constructed in England and in 1996 Kenichi Horie from Japan made the first solar powered crossing of the Pacific Ocean in a catamaran.

Fact number seven about solar power

The first World Solar Challenge took place in 1987. This is a solar-powered car race covering 3021 km through the Australian outback from Darwin to Adelaide.

Fact number eight about solar power

Did you know that it is possible to boost any solar panel output by 75% simply by placing a mirror that is about twice the size of the panel on the ground in front of the panel

Fact number nine about solar power

PV cells do not need direct sunlight to work - you can still generate some electricity on a cloudy day.

Solar electricity is a green, renewable energy and does not release any harmful carbon dioxide or other pollutants. A typical home PV system could save around 1200 kg of CO2 per year which is around 30 tonnes over a lifetime.

Fact number ten about solar power

You can store the electricity that your solar power system generates in batteries for a cloudy day.

It takes only about 8 minutes for solar energy to travel from the sun to the earth.