Solar Energy: Capturing the Power of The Sun for Electricity

SOLAR ENERGY Capturing the Power of the Sun for Electricity Solar energy, radiant light and heat from the sun is harnessed using a range of ever-evolving technologies such as solar heating, solar photovoltaic, solar thermal electricity, solar architecture & artificial photosynthesis. In 2011, the International Energy Agency said that the development of affordable, inexhaustible & clean solar energy technologies will have huge long term benefits: Lower the costs of mitigating climate change keep fossil fuel prices lower Enhance sustainability 000 Reduce pollution Increase countries' energy security through reliance on an indigenous, inexhaustible and mostly import-independent resource ENERGY FROM THE SUN The earth receives Approximately 174 30% PETAWATTS is reflected back to space of incoming solar radiation at the * the rest is absorbed by clouds, upper atmosphere oceans and land 'masses Photosynthesis captures approximately The total solar energy absorbed by the'earth's surface, oceans and land, masses is approximately 3.000 * 3,850,000 EJ/YEAR IN BIOMASS EXAJOULES/YEAR APPLICATIONS OF SOLAR ENERGY ARCHITECTURE & URBAN PLANNING Solar lights that collect energy throughout the day and then light up when the sun is about to set Light tubes, skylights and light shelves that are often part of entire day lighting systems or hybrid solar lighting (HSL) systems that collect sunlight and distribute it indoors ENERGY REQUIREMENTS CAN BE REDUCED BY AS MUCH AS 25% AGRICULTURE & HORTICULTURE Fruit walls maximize the collection of solar energy. Over time sloping walls were developed to make better use of sunlight Applications of solar energy also includes pumping water, drying crops, brooding chicks and drying chicken manure Green houses convert solar light to heat, enabling year-round production and the growth of specialty plants and other plants not normally suited to the local climate DR. GREEN SOLAR PANELS & SOLAR ENERGY Specializes in grid connect solar systems for homes, schools, businesses and community buildings TRANSPORT & RECONNAISSANCE The new equipment is expected to cut their fuel consumption by an estimated 150 marines tested and trained with an assortment of solar devices which included packing solar panels, solar heating & cooling devices, LED lights, solar light trailers for use at checkpoints and solar powered generators 30%- 50% SOLAR THERMAL In the US, heating, cooling and ventilation (HVAC) Water heating 45 systems account for over 25% OF ENERGY USED IN COMMERCIAL BUILDINGS Water Treatment Concentrated photovoltaic (CPV) may prove to be the likeliest candidate for water & NEARLY HALF OF THE ENERGY USED IN RESIDENTIAL BUILDINGS treatment Process heat Solar concentrating technologies such as parabolic dish, trough, Scheffer reflectors can provide process heat for commercial and industrial applications Fuel Production Solar chemical processes use solar energy to drive chemical reactions. These processes offset energy that would otherwise come from fossil fuel source and can also convert solar energy into storable and transportable fuel Electricity production A solar panel (PV panel) is made of the natural element silicon which becomes charged electrically when subjected to sunlight Cooking Solar cookers use sunlight for cooking, drying and pasteurization dr. greern sustainable http://www.drgreen.com.au/