Disadvantages of solar energy include taking up a lot of space, unsightliness and costing a large amount of money to power buildings. While solar energy has some advantages compared to other power sources, the costs are sometimes not worth the disadvantages.Know More
Because solar energy is still in developmental stages, it is not widely available. This availability makes it somewhat expensive to install. Homeowners can expect to pay thousands of dollars in order to have solar energy installed. This may save some money on energy costs in time, but it often will cost around the same amount as powering a home with more traditional sources.
Solar energy panels are large and can often be unattractive. They can change the entire look of a home and may cause the home's value to become depreciated because of the space they take up. Solar panels can also be installed on roofing, but this can make it difficult to get to the roof for necessary repairs. The panels can also cause serious health issues if the substances inside of them leak out. Lead and cadmium are necessary to power these panels and can be harmful if they are released from the panels.Learn more about Natural Resources
Green energy refers to energy derived from renewable sources with a low environmental impact and includes solar, wind, geothermal, biogas and hydroelectric energy. Green energy sources don't create harmful greenhouse gases at the same rate as fossil-fuel energy sources.Full Answer >
The propellers of wind turbines are rotated by the wind and activate a generator, which produces electricity. Wind turbines harness the power of air moving from a high pressure location to a low pressure location. The propellers on a wind turbine are aerodynamically shaped to rotate when wind passes through them.Full Answer >
One needs to conserve energy, or decrease our energy use, in order to preserve non-renewable resources and reduce our impact on the environment. According to the United States Environmental Protection Agency, the production of electricity in 2012 was the primary source of greenhouse gas emissions, ultimately contributing to dangerous global warming.Full Answer >
Sugarcane ethanol has the highest net energy output of all crop biofuel systems of transportation. Its net energy output is more than twice that of wheat ethanol or biomethane. One acre of Brazilian sugarcane can produce up to 660 gallons of biofuel.Full Answer >