The demand for finding an answer to every environmental welfare question is running high. Meanwhile, Research and studies involving qualified individuals are also taking the task to a new level. This presents a decent option for the future to be a safer and greener way ahead too. However, the questions are more and large in number too.

For example, what are the 6 types of alternative energy that prove to be worthy? In the search for the answers, we also come across many renewable energy sources examples.

Careful understanding and explanation of these options will help to find the correct way out. An idea of the various types of alternative energy will revolve around certain key points too. The cost factor, location idea, efficiency, trust factor, and much more are equally important.

With these and also the understanding of the advantages of alternative energy, environmental safety is possible. By having even a ray of hope for this achievable target, it also becomes a necessity. The endless search for successful alternative energy resources will also help humans and nature alike.



Being aware of the advantages of alternative energy is also not enough. A careful idea of all the available options is important too. The more we humans understand this task, the more guarantee we have of also using them. Awareness is the food that fuels the process of growth. Hence, the perfect guide for the types of alternative energy becomes an important requirement too.

Alternative energy sources include everything useful to replace the use of non-renewable ones. Because of this, they contain renewable energy options within them too. In addition to renewable resources, there are other options too. These options are non-renewable, but also have a clean life and hardly any emissions. So the scope for understanding the renewable energy facts will also need an understanding of this category. To understand the 6 types of alternative energy, we need a clear picture that solves the doubts.

The broader classification of the types of alternative energy and the following conclusion is:

  • Renewable energy sources
  • Nuclear energy
  • Hydrogen gas
  • Natural gas
  • Biofuel
  • Wave energy

It is visible that every renewable energy providing source is an effective option for alternative energy too. However, the entry of Hydrogen and Nuclear energy is the change between the two. Because of this, a study of alternative energy includes renewable energy sources examples too.

1. Renewable Energy

The understanding of the importance of renewable energy does not need an introduction. They not only provide a source to repair the damage already caused but also prevent further harm. These resources are available ever since the start of search too. The idea is to use them in a way that yields better and also cheaper options or alternatives. 

Most of these resources are provided by Mother Nature. Hence the idea to use and also the desire for changes and their implementation is important. It refers to the sources that can regenerate by themselves. This means the resources of renewable energy do not run out like the non-renewable ones. 

2. Nuclear Energy

Unstable yet highly usable, Nuclear energy is also the idea of safety and potential combined. The use of Nuclear energy unfolds a series of opportunities, each distinct and highly worthy too. Because of the availability of radioactive materials in nature, it is also a natural method. However, the use of one source is for a long time. This is because of the energy reserve, and that is the point behind it too.

More than a dozen significant countries utilize this potential and produce safe and also clean energy. In addition to this, a little less than 500 nuclear plants across the world run with state-of-art existence. 

3. Hydrogen Gas

Hydrogen gas is another potential source of major alternative energy usage. Among the question of what are the 6 types of alternative energy, hydrogen remains relatively untroubled. This is because of two reasons:

  • The primary source for this is the non-renewable fuel sources. This cancels the main statement of the issue.
  • When made through electrolysis, the amount of energy is not enough for heavy tasks
  • In normal uncombined form, Hydrogen is not reliable and volatile to control too.

4. Natural Gas

Because of the low residual value, natural gas is a better source of energy too. It is available as a raw source and also extractable from the earth. However, the fact remains of it being a non-renewable energy source by nature. Meanwhile, the positive effect of global warming limitation ensures natural gas as one of the types of alternative energy.

5. Biofuel

Biofuel is the sub-division of the category of biomass and recognized too. The inherent nature of the source for easy generation makes it a convenient option too. The unit energy value of biofuel is also high. Moreover, these have very negligible emissions that act as a positive aspect of the case too. Because of their nature, they are also not typically renewable. Hence, the usage varies upon extraction and availability too.

6. Wave Energy

The reliability is more universal in use than tidal or other competitors too. The important factor is the freedom of location for the units. Because of its nature, the location at sea or the ocean is helpful. Also, the location at any feasible water body is possible. Because of the predictable wave nature, the energy is also more consistent. It establishes one of the important renewable energy facts of value for money.


1. Solar Energy

The presence of solar energy is a factor beyond time and reach. The energy exists right from the start and shall exist right till the end too. Any estimation of the end of civilization reminds the place of the Sun right there also. Any talks of energy and relativity are incomplete without the consideration of the Sun as the originating factor. The important factor is the idea of understanding the usage of this endless source.

Not only the understanding but also the ability to harness it and store it too. However, the further chance of improvement is vast, and it needs rapid efforts too. The clean and impressive nature of solar energy reflects the importance of renewable energy.

The common ways to utilize this form of energy availability is:

  • The solar cells
  • Solar panels
  • Solar heaters
  • Vehicles propelled by solar energy

2. Wind Energy

The advantages of alternative energy also include the factor of endless potential. By using windmills, the use of this form becomes cheap and convenient too. Because of the availability at any location, it also creates an added advantage.

The windmill to harness and the setup of support is important too. The mill wind imparts rotation to the turbine with the help of an impact. The conversion of energy through the generator and for further electrical usage is another stage. Meanwhile, this energy is also applicable on a small and grand scale at equal terms. However, the energy harnessed is different in value too.

The easy and visible application of wind as an energy source is for:

  • The windmill that provides electrical energy.
  • Mechanical work through the windmill.
  • Small scale wind turbines.

3. Hydroelectric Energy

Hydroelectric energy utilizes the flow tendency and also stored water for the conversion into electrical energy. Because of the endless availability, it is also a feasible idea. However, the question of the 6 types of alternative energy will have them in the sub-category. The stored water provides a rotational tendency to the turbine. The turbine indirectly is the driving force for a generator too. The generator provides electrical power further stored in power grids. Hence, this power distribution to the application heads as per the requirement.

The main sources of use for the power generation are:

  • The power station at dams
  • Turbines through river flow
  • Hydropower stations


4. Tidal Energy

The list of renewable sources of energy examples gets to feature tidal energy too. The application principle is similar to the wind or hydropower form of utility. However, instead of one absolute source, this form uses the tides. The advantage is high for countries with water resources in plenty too. The tides need prediction study and further application of technology also. However, the actual extraction of energy through this source is less. Because of a lack of awareness to date, there is huge potential to develop further and keep moving. This alternative energy sub-division consists of:

  • Tidal mills for the purpose
  • Turbines to utilize tidal energy
  • Combined design

5. Biomass Energy

Biomass includes the use of residual or remains of plat bodies or other biological remains. This also concludes that biomass is one of the best types of renewable energy to employ “waste usage.” The use of biomass also includes a list of other elements. Developing and developed countries rely on the biomass bundle and the potential to unfold.

6. Geothermal Energy

The utilization of thermal energy of the earth in the form of water/steam as a driving source is geothermal energy. Because of the natural availability, geothermal energy is a factor for the types of renewable energy. Heated water results for steam generation and further use in turbine rotation. The turbine and the connected generator take charge of electricity production. Meanwhile, further use is as per the standard electrical procedure. This means that geothermal energy has negligible leftovers too. However, the scope for improvement in the geothermal area is endless.


Because of the nature of generation and establishment, the costs fluctuate widely too. This also means that the main cost estimation will include 

  • Initial setup cost 
  • Per unit generation cost. 

The alternative energy sources that compete in the section are hydro and solar power generation. The initial setup cost for hydropower is between 3-5 mil USD for 200+ Kw generation. For solar panels and plants, it comes down to also less than 50 thousand USD.


Meanwhile, the generation cost/Kwh for solar energy is an average of 0.12-0.15 USD/Kwh. However, for hydropower, it stands in the range of 0.08-0.12 Kw/h.

Another significant fact is also the scale and ease of generation. Because of the mass water bodies, the hydropower goes up to 14000 MW and above. However, area restrictions and also accessibility issues limit solar energy to 2050 MW. The power generation answer what are the 6 types of alternative energy yield clear results.

The ease of generation proves that hydropower is also the easiest form of renewable energy. It contributes more than 50% of the renewable power resource by itself. The ease of access and the future view also prove its utility. Hence, the renewable energy facts also prove it as the best form of alternative energy.


Subsequent case study of the cleanest form of energy for future use reveals the role of hydropower too. The paper focuses on the development and use of hydropower.

The study reveals the hydropower role as the most pivotal of all renewable energy resources. Meanwhile, the figure is about 17% for the entire electricity generation. The single contribution of 50% and more of Hydropower as a renewable medium is significant too. Thus, the discussion of future evolution holds importance too.

Because of the least potential threats and scope to improve, the hydropower files a suitable case for future implementation. Continuous development as an alternative energy source is very important.

SOURCE in future


The idea from start to the end also should be the same. Evident improvement in emissions and healthy living is the most important factor. Various types of alternative energy and the combined utility are the answer for every threat.

An ideal path with a lot of control and determination has the ability to save humans from extinction. What is visible as slight discomfort today will be a threat to life tomorrow. The power to visualize and apply the change is in everybody’s hands.

Meanwhile, the time to blame or regret ends, and the time to react shall take over. 


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