About Solar Energy Solar energy, heat and radiant light that emanates from the sun have been controlled by humans beginning the ancient periods using a wide range of evolving technologies. Solar radiation, together with secondary solar-powered resources like biomass, wind, wave and hydroelectricity are accountable for majority of the available renewable energy on Earth. The highest efficiency PV cells produced were by Boeing and SpectroLab in 2009, with efficiencies of around 35% to 41%. There are also other multi-layer cells that closely resembled the device. These were very expensive too, and were only used in the most unique applications. Thin film PV cells were also created and made in bulk. However, in order for us to be able to understand and properly predict what the future holds for solar energy, we need to first take a step back and look at what solar energy is right now. Solar Energy Today Right now, solar energy is being used for a number of reasons. It is being widely used for certain purposes, such as providing your home with an alternative source for energy and electricity, thereby allowing you to greatly reduce the cost of your energy and electric consumption by a considerable margin. 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. 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. Getting a solar energy system for your home or work place these days would actually help you save some money on the total cost of your utility bills annually. However, this particular benefit is not necessarily immediate, as there are some other costs that you need to consider. Even though solar panels and the relative accessories like solar lights are expensive to purchase at the beginning, the total sum you save in the years to come will be bigger, thereby boosting your savings instead of investing in a non-renewable energy source. The energy provided by the sun is readily available and free.