Journal of Fundamentals of Renewable Energy and Applications
Open Access

Energy Utilisation and the Primary Supplier of Renewable Energy

John Rogris^{* *}Correspondence: John Rogris, Department of Energy Management, University of California, California, USA, Email:

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About the Study

Renewable energy is produced from natural processes that are constantly renewed. It emanates directly from the sun or from heat generated deep within the earth in its different forms. Electricity and heat generated by solar, wind, ocean, hydropower, biomass, geothermal resources, and biofuels and hydrogen derived from renewable resources are all included in the renewable energy.

Over the last few centuries, the availability of energy has been changed the path of humanity. Not only the availability of new energy sources, first fossil fuels, then nuclear, hydropower, and currently many otherrenewable technologies have also been exposed.

This article concentrates on the amount of energy we utilize, including total energy and electricity consumption, how countries

Our pages on the Energy Mix and Electricity Mix go into greater depth about the sources of this energy. Many different units are used in the energy realm, including joules, exajoules, million tonnes of oil equivalents, barrel equivalents, British thermal units, and terawatt-hours, to name a few. This can be perplexing, making comparisons challenging. As a result, at our world in statistics, we strive for consistency by converting all energy statistics to watt-hours. This is done to compare energy statistics from various metrics and sources.

Since the Industrial Revolution, the energy infrastructure has changed dramatically. In contrast to the 'direct method,' the substitution method' tries to correct for inefficiencies (energy wasted as heat during combustion) in fossil fuel and biomass conversion. This is accomplished by converting nuclear and contemporary renewable technologies to their "primary input equivalents" if the same amount of energy were generated using fossil fuels. Here, we examine in depth at these two methodologies, how they differ, and what impact this has on energy statistics.

Energy demand is increasing in many countries around the globe as people become wealthier and populations grow. If this increased demand is not offset by other advances in energy efficiency, our global energy usage will continue to rise year after year. Growing energy usage complicates the transition of our energy systems away from fossil fuels and towards low-carbon sources of energy: new low-carbon energy must satisfy this additional demand while also attempting to displace existing fossil fuels in the energy mix.

The shift is expressed as a percentage of previous-year consumption. Global energy consumption has increased virtually every year. The exceptions were in the early 1980s and after the financial crisis in 2009. Global energy usage continues to rise, but at a slower pace, averaging around 1% to 2% per year.

It is the entire amount of energy consumed, including electricity, transportation, and heating. Later in this article, we will look at electricity usage separately. Again, this is predicated on primary energy via the substitution method,' which means that nuclear and renewable energy technologies were converted into their 'primary input equivalents' if they had the same levels of inefficiency as fossil fuel conversion. We converted primary energy into terawatt-hours to be consistent with the rest of the energy data we show.(rather than million tonnes of oil equivalents, or alternative energy units).