Light Emitting Diodes
LED or Light Emitting Diode is a light source that is set to soon replace incandescent and fluorescent lighting in a huge way. What makes it better than existing lighting solutions is that it consumes 50% less energy, is non-breakable with no delicate parts like glass or tube, is more energy efficient, has a long operation life, around 50,000 hours, and comes in various shapes and sizes. LED lighting also covers an entire color spectrum of light and gives off a pure white light in comparison to other lighting.
No doubt the initial cost of LED lighting system is higher than a conventional lighting system [around 3 times more expensive] but the return on investment on use of Energy Lights is less than 2 years, making for a good long term investment
Solar Energy Conversion
The sun has provided energy for practically all living creatures on earth, through the process of photosynthesis, in which plants absorb solar radiation and convert it into stored energy for growth and development. Scientists and engineers today seek to utilize radiation directly by converting it into useful heat and electricity. Two main types of solar energy systems are in use today: Photovoltaics, and thermal systems.
Solar Photovoltaics
Photovoltaic systems convert solar radiation to electricity vis a varity of methods.The most common approch is to use silicon panels, Which generate and electrical current when light shines upon it. Solar photovoltaics are especially valusble for remote rural applications where it would be prohibitively expensive to supply electrivity from utility line.
Solar thermal systems
Solar Thermal Systems seek to store heat from the sun that can be used for a variety of purposes. Many different approaches can be employed here, including active systems, such as solar hot water heaters, and passice systems, in which careful engineering design results in a building that automatically stores and utilizes solar energy. Greenhouses are a prime candidate for passive solar design, in which they collect solar energy on sunny days in winter and utilize it to keep the house warm at night..
Solar Power Plant
Solar power is the conversion of sunlight into electricity, either directly using photovoltaiv(PV), or indirectly using conventrated solar power(CSP).Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.Photovoltaic convert light into electric current using photoelectric effect.
Photovaltaic were initially, and still are, used to power small and mediym-sized applications, from the calculator powered by a single solar cell to off-grid homes powered by a photovoltaic array. They are an important and relatively inexpensive source of electrical unavailable. However, as the cost of solar electricity is falling, solar power is also increasingly being used even in grid- connected situations as a way to feed low carbon energy into the grid.
Induction Technology
The internal electrodeless lamp or induction light is a gas discharge lamp in which the power required to generate light is transferred from outside the lamp envelope to the gas inside via an electric or magnetic field, in contrast with a typical gas discharge lamp that uses internal electrodes connected to the power supply by conductors that pass through the lamp envelope. There are three advantages to elimination of the internal electrodes:
- Extended lamp life, because the internal electrodes are usually the limiting factor in lamp life..
- The ability to use light-generating substances of higher efficiency that would react with internal metal electrodes in normal lamps.
- Improved collection efficiency because the source can be made very small without shortening life, a problem in internal electroded lamps.
Two systems are described below – plasma lamps, which use electrostatic induction to energize a bulb filled with sulfur vapor or metal halides, and fluorescent induction lamps, based upon a conventional fluorescent lamp bulb in which current is induced by an external coil of wire via electrodynamic induction.