Since ancient times the sun was considered as a source of energy: spiritual and other wise. It is so sad to find out that in fact only 10% of solar energy is actually used. Perhaps if we are more aware of its use and its capacity as a sustainable power then maybe we will be able to use and promote solar power.
The Beginning of All Things
Unbeknownst to a lot of people, solar energy actually is the source of numerous sustainable powers like radiation, waves and wind. Solar energy has many usage it can give us light, heat, promote cooling, it can be harnessed through technology to power many things like for machines cooking, distillation, hot water, and disinfection.
Technology and The Sun
As we all know heat produces unfathomable amounts of energy. This energy has to be aided by technology in order to be converted into something that is usable by mankind. There are two types of solar technology, the passive and or the active solar energy. A classification between the two depends on how the heat from the sun is harnessed and channeled into ordinary things powered by electricity.
Active Solar Technologies use solar (photovoltaic) panels, combined with solar thermal collectors, and then channeled thru mechanical or electrical equipment. Passive solar technology is merely a technique in order to capture the suns useful rays; for example a skylight.
Electricity From The Sun
We are all familiar with the term “solar panel”; solar panels convert the heat from the sun into actual electrical current with the use of what is called the photoelectric effect. Concentrated solar power produces insurmountable energy. In fact it was greatly utilized during the time of the Ancient Chinese Civilization.
To concentrate the power of the sun, a series of mirrors and lenses are used in order to focus the light in one area thereby producing a single beam. There are a lot of technological advances out there that concentrates solar energy in order to produce a concentrated amount of power they are: the solar power tower, the parabolic dish and the solar trough.
Dilemma, Solution, And Economics.
The primary concern of the use of solar energy as a sustainable power is that there is no sun during the night. Modern times require continuous supply that is why storing solar energy is a key component of solar technology. Thermal storage systems can store solar energy. Newer scientific discoveries also paved the way for thermal mass storage systems which vary storage capacity and function by storing more energy during off peak times and varying supply at peak consumption hours.
It usually takes a crisis for people to actually look at possibilities, and like with almost everything else solar energy began getting attention after the 1979 oil crisis and the 1973 oil embargo. In fact solar technology began its appearance in the 18 hundreds. IN the past solar energy as a sustainable power was a dream but cannot be realized due to expensive technology needed to use it.
Today, with the rising costs of electricity, the volatile oil prices, and its degenerating source have paved the way for solar energy once more. The consciousness environmental welfare has prompted companies to manufacture affordable solar technologies and sell it commercial. Indeed it is a fact that solar technology is expensive but it is only in the purchase of the machines needed in the long run if you calculate it, you are actually getting a bargain.