When place on existing structures (e.g. rooftop of a home or office building), solar energy systems require very little amounts of land space. However, on the other hand, utility scale solar farms do require large amounts of land to produce electricity on commercial scales. This points raises concerns about the potential impact of such projects on natural habitats. The production of PV cells includes a number of hazardous materials (e.g.
The way the wind blow depends on the ground surface, bodies of water, and the vegetation. Wind turbines used to generate electricity can harvest the wind. They convert kinetic energy from the wind into mechanical energy. The turbine spins like a propeller on a plane when the wind blows, turning the blade that spins a shaft connected to a generator that makes electricity. The mechanical power is converted into electricity to power homes and businesses.
It comes in many forms such as heat, electricity, light, mechanical energy. Conventional energy sources for instance coal and oil are the main contributors to the global warming. Furthermore, these fossil fuels are not renewable. The good news is alternative sources of energy can replace the current technologies. These renewable energy sources are environmental friendly as they emit less carbon dioxide, compared to fossil fuels.
There is lots of renewable energy such as solar energy, wind energy, geothermal energy and hydroelectric energy. There are many benefits of alternative energy. Most of alternative energy is friendly to environment and people. They will not consume fossil fuel and cause almost no air pollution, so they will not harmful environment. Harnessing of renewable energy is keeping the world from running out of energy, delays and decrease greenhouse effects and global warming because using renewable energy can
Question 1: How does solar energy compare with fossil fuel energy in satisfying basic energy needs? What are the three fundamental problems in harnessing solar energy? Solar energy basically does the same as fossil fuel in providing for and satisfying basic energy needs. Example, flat plate collectors are used in warm climates to collect the suns heat and store it to be used to warm up water, solar energy can also be used and converted to provide electricity. Solar energy is more cost efficient and cleaner than the use of fossil fuels.
These different sources of energy provide an alternate cleaner source of energy. These energy sources are harmless to the earth, helping to negate the effects of certain forms of pollution. My first choice of energy wind power is the conversion of wind energy by wind turbines into a useful form, such as electricity or mechanical energy. Secondly is hydroelectric power electricity generated by hydropower. Hydroelectricity is the production of power through use of the gravitational force of falling water or flowing water.
The maintenance of fuel cells is simple since there are few moving parts in the system. Fuel cells provide high quality DC power. Use a variety of fuels, renewable energy and clean fossil fuels. The power densities are high values. Cogeneration Capability.
Flat, fertile Land - There is a lot of flat land available in coastal areas and especially where there is a river that flows accross a floodplain this factor also makes it more atractive to build on. The land is also fertile as alluvium is deposited which is rich in nutrients. Industry - this creates jobs for people and therefore oppurtunities. Accessibility - This makes it easy to get to and also easy for industry. Soil Fertility - Make its good for farmland and growing.
Solar energy is a non-pollutant, cost effective, maintenance free, life span of up to 40 years; however the upfront cost is enormous, and not everyone can afford the cost to put the stylish panels on their roof tops. Many jobs would be lost at the oil field however more jobs would be created by installing other methods of
Other advantages of nuclear energy include life-cycle emissions of carbon dioxide, nitrogen oxides and sulfur dioxide that are lower than all fossil fuel forms as well as solar photovoltaic and forestry waste biomass. Several key areas that nuclear energy are lower carbon dioxide (and other greenhouse gases) released into the atmosphere in power generation, lower operating costs, known, developed technology “ready” for market, large power-generating capacity able to meet only local residential, or office need but cannot generate power for heavy manufacturing and existing and future waste can be reduced through recycling and reprocessing. Nuclear energy is most definitely the future pertaining to discontinuing the use of fossil fuels. Though fossil fuels may offer that same 24/7 availability, nuclear energy has an unparalleled energy density of the fuel used. Just one uranium fuel pellet – roughly the size of the tip of an adult’s little finger – contains the same amount of energy as 17,000 cubic feet of natural gas, 1,780 pounds of coal or 149 gallons of oil.