sources of energy
Renewable energy sources
Non renewable energy sources
Nuclear energy is the energy in the nucleus, or core, of an atom. Atoms are tiny units that make up all matter in the universe, and energy is what holds the nucleus together. There is a huge amount of energy in an atom's dense nucleus
Hydropower is using water to power machinery or make electricity. ... Because the water cycle is an endless, constantly recharging system, hydropower is considered a renewable energy. When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower.
Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. ... The resulting pressure and heat turned the plants into the substance we call coal
Photo courtesy of MBI Energy Services. Petroleum and natural gas are nonrenewable sources of energy. Petroleum is a liquid mixture found underground that can be used to make gasoline, diesel fuel, and many other products. Petroleum is also called crude oil or oil.
Natural gas is a fossil energy source that formed deep beneath the earth's surface. Natural gas contains many different compounds. The largest component of natural gas is methane, a compound with one carbon atom and four hydrogen atoms (CH4). ... We use natural gas as a fuel and to make materials and chemicals
The answer is simple: solar energy. Solar energy is simply the light and heat that come from the sun. People can harness the sun's energy in a few different ways: Photovoltaic cells, which convert sunlight into electricity. Solar thermal technology, where heat from the sun is used to make hot water or steam
Wind energy (or wind power) refers to the process of creating electricity using the wind, or air flows that occur naturally in the earth's atmosphere. Modern wind turbines are used to capture kinetic energy from the wind and generate electricity.
Marine energy refers to seawater-based renewable energy, including tidal energy, wave energy, ocean current energy, and energy created from temperature and salinity differences. The energy density of various ocean energies is relatively low in general.
Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, above. The energy from these organisms can be burned to create heat or converted into electricity.
Geothermal energy is heat within the earth. The word geothermal comes from the Greek words geo (earth) and therme (heat). Geothermal energy is a renewable energy source because heat is continuously produced inside the earth. People use geothermal heat for bathing, to heat buildings, and to generate electricity