The negative aspects of biomass energy are similar to those associated with the use of fossil fuels for generating electricity, with the exception that biomass fuels are renewable energy sources. Burning of biomass fuels... More »

Wind energy has many advantages but there are some possible downsides, including: intermittency, initial costs, wildlife impact, noise and appearance. These downsides can be broadly categorized as technology, cost and en... More »

Natural gas is a fossil fuel and a non-renewable energy source. While it is available in abundance in 2014, like petroleum, there is a limit to the amount of natural gas available. The primary compound in natural gas is ... More »

The main sources of electricity are fossil fuels, nuclear power and renewable energy. Electricity is a secondary source of energy derived from primary sources. More »

According to National Geographic, electricity comes from energy sources such as fossil fuels, wind energy and hydroelectric power. Electricity is transported from a power station via power lines that carry electrical cur... More »

Advantages of using geothermal energy include lower operating costs than many other fuel sources, pollution-free energy creation, and a reduction in the use of non-renewable fossil fuels such as coal and oil. Further adv... More » Science Earth Science

Biomass is a biological material that is an important energy source for humans. It is composed of a mixture of organic molecules including carbon, hydrogen, oxygen, nitrogen and alkaline earth metals. It is constantly be... More »