Renewable energy

This doughnut chart sample illustrates the renewable energy sources. It was designed on the base of the Wikipedia file: Example of a doughnut chart.png.
[en.wikipedia.org/ wiki/ File:Example_ of_ a_ doughnut_ chart.png]
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 License. [creativecommons.org/ licenses/ by-sa/ 3.0/ ]
"Renewable energy is generally defined as energy that is collected from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy often provides energy in four important areas: electricity generation, air and water heating/ cooling, transportation, and rural (off-grid) energy services." [Renewable energy. Wikipedia]
The donut chart example "Renewable energy" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Pie Charts solutiton of the Graphs and Charts area in ConceptDraw Solution Park.

"Consumption of energy resources, (e.g. turning on a light) requires resources and has an effect on the environment. Many electric power plants burn coal, oil or natural gas in order to generate electricity for energy needs. While burning these fossil fuels produces a readily available and instantaneous supply of electricity, it also generates air pollutants including carbon dioxide (CO2), sulfur dioxide and trioxide (SOx) and nitrogen oxides (NOx). Carbon dioxide is an important greenhouse gas which is thought to be responsible for some fraction of the rapid increase in global warming seen especially in the temperature records in the 20th century, as compared with tens of thousands of years worth of temperature records which can be read from ice cores taken in Arctic regions. Burning fossil fuels for electricity generation also releases trace metals such as beryllium, cadmium, chromium, copper, manganese, mercury, nickel, and silver into the environment, which also act as pollutants.
The large-scale use of renewable energy technologies would "greatly mitigate or eliminate a wide range of environmental and human health impacts of energy use". Renewable energy technologies include biofuels, solar heating and cooling, hydroelectric power, solar power, and wind power. Energy conservation and the efficient use of energy would also help." [Energy industry. Environmental impact. Wikipedia]
The Energy resources diagram example was created in the ConceptDraw PRO diagramming and vector drawing software using the Manufacturing and Maintenance solution from the Illustration area of ConceptDraw Solution Park.