The process is known as heat transfer. If a person puts two objects next to each other, the warmer object will start to cool down as the heat is moved to the cooler object. The cooler object will warm up afterwards. The transfer of heat is triggered by the difference in the temperature of the objects. Instead, check these different solar energy figures and statistics and see for yourself if whether solar energy is indeed everything that people are claiming it to be. Is Solar Energy Systems Financially Viable? One of the main things that people look at when it comes to alternative sources of energy is whether it is financially viable or not. The Basics Solar energy is very promising because it is renewable, which means that you can continue getting the power you need nonstop. The sun provides a large amount of energy that artificial units cannot sufficiently give. The small part of the power stems through to the earth in the form of sunlight. These are some questions you need to consider to get the best deals. Ordering online will depend on your location and the mode of transportation. If you think that setting up and maintaining the system will be difficult, it might be better to wait until the technology is more rampant in your area. About Budget Solar cell systems are generally costly in the beginning. 51% of sunlight in reality enters the atmosphere of the earth. Unlike solar thermal energy which transforms soalr energy to heat for industrial or household reasons, PV cells can directly change sunlight into electricity. The Solar Array The solar array is made of hundreds of photovoltaic solar cells that transform sunlight into electricity. He patented the first silicon solar cell in the world in 1941. The first solar panel was produced by the same company in 1954 because of Ohl's creation. The new solar panels were used first in space satellites. During the 1970s, more people saw the use of solar panels through the newly designed calculators that can run easily under light.