ATP is then used to use CO2 to form organic compounds such as starch, amino acids, and fatty acids. The green color of leaves means that all the colors in the light spectrum is harnessed for energy, except for green. (Campbell and Reece, 2002, p. 186, 194). Since natural systems cannot be altered to make them efficient, all that can be done at present is use genetically-modified plants that can grow faster to provide more photosynthetic units, although linking the efficient part of photosynthesis to artificial systems that replace the inefficient steps of photosynthesis is a possibility (Crabtree and Lewis, 2007). The efficiency of commercial solar energy-acquiring cells made of inorganic single-crystal silicon now ranges from 2-18%. Similar to plants, energy from photons are transferred by exciting electrons. The efficiency of its energy-harnessing ability is limited by the structure of the solar cells. Currently, as is the case in plants, one electron is excited per photon. In addition, solar cells harness sunlight through a flat surface that does not permit concentration of sun rays. Moreover, the semiconductors limit the energy absorbed to a part of the spectrum. Improvements on solar cells itself, in contrast to natural systems, can be done to make solar energy harnessing more efficient.
In total, the sun provides 1.2 x 105 terawatts (TW), much greater than the 13 TW harnessed and used by humans (Crabtree and Lewis, 2007, p. 37). Plants, through photosynthesis, convert 0.3% of harnessed sunlight to useful energy. This useful energy is chemical, in the form of biomass, which is still further processed to provide electricity…
A long distance is covered to the surface as the energy transforms and is released as its primarily light energy, sunlight. The two forms of solar energy that make it to the earth are light and heat. Solar energy is often termed as alternative energy to the fossil fuel energy sources like oil and coal
This alternative choice is solar energy. This proposal seeks to bring insight of solar energy to the matter at hand. The suggested option will be elaborately discussed in the subsequent sections. Problem The UAE relies entirely on oil in order to generate power.
Solar energy is very important to maintain life on earth, it facilitates the growth of food crops, control climate conditions, provide warmth, and can be utilized to produce solar electricity. Moreover, solar energy is partially the cause of wind energy, as airstream conditions are significantly controlled by the sun.
This essay focuses on practical aspects of securement of economic efficiency of the solar energy utilization. Modern solar energy technology is considered from the point of efficiency increasing. Technical solutions, that will make solar energy economical, are reviewed. The question of provision of the efficient storage of electricity is discussed.
The ability of performing using the zero energy is a determinant of the energy rating system.
A zero energy home has no net bill from the electricity grid and uses renewable energy installed in the home. The rating of the zero energy is based on
Many forms of technologies are used today to convert solar power into other useful power resources such as solar powered cars. The most normally utilized sun oriented technologies for homes and organizations are sun based water warming, latent sun powered outline for
The author states that solar energy has many advantages in Hong Kong since there is abundant sunlight. High-rise and high-density urban environment often create difficulties for energy applications. There have been interesting results derived from using solar systems. Wind and solar energy have been proposed to be used in the "Hong Kong Disneyland”.