Energy resources can be obtained from many sources. The first source is the natural resources that are found in the Earth. These resources include wood, agricultural and waste materials, as well as energy crops. Landfill gas can also provide another source of energy. These resources are diverse and may require individual management. It is possible to manage each resource independently to solve this problem.
Natural resources
Renewable resources are those which can be replenished. However, nonrenewable resource cannot be used up once their stock has been exhausted. Metals, for instance, cannot be replenished after their mined. With increasing human populations, there is an increased demand for renewable resources. Renewable resources are increasing in availability, even though fossil fuels still provide energy for humans since the late-1880s.
Natural fuels
Natural fuels are one of the oldest sources of energy. Although coal was once a popular source of energy for many years, it is no longer so common as renewable energy options are much more affordable. Many countries are switching away from fossil fuels to more renewable sources.
Oil
Oil is a renewable energy resource that can be used for a variety of industrial processes. But oil has its limitations. The first is its limited supply. The oil supply in the world is rapidly decreasing and oil prices are rising. Another disadvantage is its impact on the environment. The world's oceans are polluted by oil extraction and marine life is severely affected.
Hydroelectricity
Hydroelectricity can be a source of renewable, unlimited energy. It can also be combined with solar power or wind power. It's also one of most flexible forms for energy generation. It can be set up and taken down in just two minutes. This makes it a great choice for balancing production levels during the day.
Bioenergy
Bioenergy, a renewable energy resource, can be used as a source of heat, electricity, and other energy. In 2016, the world's bioenergy capacity reached about 110 gigawatts (GW), accounting for around 2% of total global electricity generation. During the same period capacity additions averaged around five to seven GW annually. Bioenergy can meet renewable energy demand at a very low cost.
Nuclear energy
It is a renewable source of energy that generates electricity but does not emit pollutants. It is used to power space exploration and sterilize medical equipment. It supports clean air initiatives and helps combat climate change.