The various types of energy are the raw materials that power is derived from. They are then converted into secondary forms like electricity and fuels and transmitted through various channels to supply electricity for our homes web link industries, vehicles and lives. Energy sources are categorized as renewable and non-renewable.

Renewable (or clean energy) is energy that comes from sources of natural resources that are continually replenished. Examples include solar, wind and geothermal. Fossil fuels (coal, oil and natural gas) are considered non-renewable because they are formed at a slower rate than we use their resources, which means that they will eventually be exhausted.

Solar energy can either be harnessed in large solar power plants or one roof. Solar energy can be converted into photovoltaic energy that generates electricity directly. Water can be harnessed to produce hydropower, or it can be utilized to create wave and tidal energy. Geothermal energy is sourced from reservoirs of hot water underground. Bioenergy is derived from organic resources like woody crops, animal dung, and human waste.

In addition to being environmentally friendly Renewable energy is also cheaper than fossil fuels. The issue is that renewable energy requires a huge infrastructure to harvest and transport the energy, and can lead to difficult trade-offs due to economic, social and environmental reasons. The development of these technologies continues to expand and they are progressing against traditional fuels. Renewables could even be cheaper in the long term than coal and oil.