Five types of clean energy sources: the best fossil-fuel alternatives

Solar and wind power are two examples of renewable energy sources becoming more popular around the world. You can produce renewable energy in a variety of ways. These fossil-fuel options will play a much more significant role in our power generation mix in the years ahead.

Renewable energy sources

Renewable energy sources are energy sources that are replenished regularly by natural processes. Since they are a fuel option that can supplement traditional non-renewable fossil fuels, these options are often referred to as alternative or renewable energy. When fossil fuels, such as oil and coal, are burnt, they provide electricity. Still, their availability is reduced because they do not spontaneously replenish a timescale that humans can use.

Renewable energy sources are advantageous because, as opposed to fossil fuels, they have a relatively low negative environmental effect. They were previously too costly to be commonly used. This is evolving, as many renewable energy sources are becoming more affordable, and some can also be a profitable investment for homeowners, companies, and governments. Solar energy, in particular, is an excellent choice for property owners who want to reduce their carbon footprint while saving money.

The five significant fossil-fuel alternatives

The term “renewable energy sources” refers to five various technologies. Below is an infographic that compares the top five clean energy options side by side:

Five types of renewable energy resources (infographic)


Continue reading for more information on these renewable energy sources:

Solar energy

Solar power is one of the most widely used forms of renewable energy. The sun, which provides us with the energy we need to survive, is the source of solar energy. We can collect energy directly from the sun and transform it into electricity to fuel our homes and businesses using solar panels.

Solar energy is suitable for both your wallet and the environment. Solar panels are becoming more affordable and putting solar on your home almost always saves you money over the system’s life. Furthermore, since solar energy does not pollute the atmosphere or emit fossil fuels, you can significantly reduce the environmental footprint by installing solar.

Wind power

The wind is another form of renewable energy with which we interact daily. When you sense the atmosphere, it is air passing from one spot to another due to the uneven heating of the Earth’s surface. Massive turbines, which produce energy as they rotate, can harness the power of the wind.

Wind power is becoming more common for utility-scale installations, even though it is not necessarily a viable choice for a single homeowner. Hundreds of square miles of wind turbines can be seen all around the world. Wind power, like solar energy, produces practically no emissions and is a quickly growing and important clean energy source that provides electricity to grids worldwide.


Moving water, like moving air, can be used to generate green energy. When moving water spins a turbine to produce electricity, energy is produced. This is common at large dams or waterfalls where the water level drops dramatically.

Hydropower is also a non-polluting energy source because hydroelectric plants produce no pollution. Hydropower, on the other hand, has a more significant environmental effect than any other alternative energy source because it can alter water flows, tides, and fish migration routes.

Geothermal energy

The planet Earth has a vast energy source. As heat trapped during the formation of our Earth is combined with heat created by radioactive decay in rocks deep beneath the crust, an enormous amount of geothermal heat energy is produced. Perhaps a large amount of heat is released all at once, resulting in surface volcanic eruptions.

By spinning a turbine with steam from hot water, we can collect and use geothermal energy. Water is pumped underground in a geothermal spring system. It is heated to the point that smoke rises to the surface and spins a turbine to produce electricity.

Additionally, you can use geothermal heat to supply heating and cooling to buildings directly. A fluid is injected below the ground surface to be heated or cooled by this technology, known as a ground-source heat pump, where the temperature remains stable year-round at about 50 degrees.

Geothermal energy is a viable renewable energy source with tremendous potential for energy production, even though it is only a minor part of our energy mix. In Iceland, for example, geothermal energy supplies 90% of home heating and 25% of electricity. However, there are certain drawbacks to geothermal energy, such as the high cost of building a power plant and the risk of surface instability and earthquakes.


Biomass is a final example of renewable energy. Any energy derived from recently living organic matter such as plants or animals is called biomass energy. Plants can be regrown very quickly, and they thrive using renewable energy from the sun, making biomass a renewable fuel. Biomass is also used to make fuels like ethanol and biodiesel (both vehicles and trucks).

Therefore, biomass fuels are regarded as “carbon-neutral,” implying that they emit no further carbon dioxide into the atmosphere. This is believed to be so because, in theory, once plants are harvested and burnt for oil, new plants would eat up the carbon emitted by combustion, resulting in no more carbon being released into the atmosphere. On the other hand, regrowing plant life requires time, and the degree to which biomass fuel is fully carbon-neutral is debatable.

For homeowners, solar energy is the most realistic renewable energy source.

You might want to consider going solar if you’re going to reduce your environmental impact while still saving money. With solar costs starting to drop, now is the best time to produce electricity from the sun.

For more information about solar panels, our team of experts is here to help! 07-3062-7614

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