Green energy comes from natural sources such as sunlight, wind, rain, tides, plants, algae and geothermal heat. These energy resources are renewable, meaning they’re naturally replenished and better sources in comparison with fossil fuels.
Renewable energy sources also have a much smaller impact on the environment than fossil fuels, which produce pollutants such as greenhouse gases as a by-product, contributing to climate change.
Green energy, however, utilizes energy sources that are readily available all over the world, including in rural and remote areas that don’t otherwise have access to electricity. The advance in technology has allowed lower cost of materials making it more affordable to the public.
Types of Green Energy
Green energy keeps being researched allowing for new type of green energy under development. Here are the most common:
Solar Power – solar power is typically produced using photovoltaic cells, which capture sunlight and turn it into electricity. This is the most prevalent renewable energy and is commonly used in households and buildings.
Wind Power – Air is another of the most common sources we have on earth and used by turbines to provide power. The stronger the wind the more energy can be produced.
Hydropower – hydropower is generated by the Earth’s water cycle, including evaporation, rainfall and tides. A good example are dam powerouses.
Geothermal Energy – Geothermal energy in the form of hot springs has been used by humans for millennia for bathing, and now it’s being used to generate electricity.
Biomass – living natural materials and combustible agricultural wastes can be converted into energy. These materials contain stored energy from the sun.
Biofuels – these are renewable organic materials transformed into fuel. They will have a big impact on the transportation world.
Advantages of renewable Energy
Renewable energy is sustainable and will never run out.
The facilities using this energy require less maintenance than the traditional generators and have lower costs of operations.
Even more importantly, renewable energy produces little or no waste products such as carbon dioxide or other chemical pollutants, so has minimal impact on the environment.
Renewable energy projects can also bring economic benefits to many regional areas, as most projects are located away from large urban centers and suburbs of the capital cities.
Disadvantages of Renewable Energy
It is difficult to generate the quantities of electricity that are as large as those produced by traditional fuel generators. This may mean that we may need to use or build more energy facilities and have a balance of many different power sources.
Renewable energy often relies on the weather for its source of power. All the sources of energy mentioned before need to have certain conditions to provide the needed supply of energy and if these resources are unavailable so is the capacity to make energy from them.