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What is Renewable Energy and How Does It Work

Arnold Schwarzenegger Green Energy helps us explain; What is Renewable Energy.There is a simple answer to;”What is renewable energy?“. It is energy which is self replenishing.

Many people would say that it is also sustainable energy, which implies that in accordance with many definitions of sustainability it should be self replenishing within a generation, so that the present generation does not rob energy resources from future generations.

What is Renewable Energy? We Delve Deeper…

Renewable energy takes many forms but starts out being either stored in the earth’s crust and deep magma, or nuclear; the vast majority of which is from the sun.

Geothermal energy is not totally renewable, because when we use geothermal energy it is removed from the earth’s crust.

However, the proportion we could conceivably use is so tiny that it would take billions of years for man to use up all the earth’s geothermal energy. Therefore, geothermal energy is classed as renewable.

Burning wood is thought of as renewable, but it is only really renewed once the forest it was cut from has grown again. As long as the woodland is replanted though, most people would consider burning it to be renewable since it will regrow in temperate regions within a generation.

In contrast, burning fossil fuel is clearly not renewable because it takes millions of years for new coal, oil, or natural gas to form. That’s a lot longer than one generation!

There is an interesting form of renewable energy which often renews itself in a year or less, and if it isn’t used it simply is wasted: That is biogas, which is made from the anaerobic digestion process, which uses ancient microorganisms which have existed since there has been life on earth, to make it.

Renewable Energy: How Does It Work?

Renewable (sustainable) biogas energy works like this.

A crop, or better still an organic waste left over from the growth of a crop (for example supermarket food waste), is fermented in a biogas digester, a gas (biogas) bubbles off, and that gas is used instead of natural gas.

This is a fabulous renewable energy, because it burns clean – which wood certainly doesn’t.

It can be used for anything natural gas can be used for, including as CNG (compressed natural gas) for vehicle fuel. It is also quickly replenished (much more quickly than wood) by using the material remaining afterwards as a fertilizer, to grow the next year’s crop.

What is Renewable Energy Generation About Certainly Not Diverting Food to Make Energy with It!

How Governments Made the Mistake of Subsidizing Purpose Grown (Food) Crops in the Noughties

A few years ago many governments saw oil prices rising along with all other fossil fuel prices rising and decided that to make bio-fuel and in particular bio-diesel would save their nations from spending a lot of money. Money which would leave their countries, to pay for imported oil used to make diesel fuel.

They saw using purpose grown crops as a wonderful way to make bio-diesel, and started to subsidize the production of biogas.

But, unfortunately, they encouraged farmers to divert their food crops like maize to making bio-diesel.

When, simultaneously food prices started rising faster then inflation there was a public outcry against the subsidies. In hindsight you might say that this could and should have been foreseen, but it wasn’t.

The result was that governments (such as Germany and Brazil) got a lot of bad publicity for encouraging farmers to stop supplying food. The result has been that most of those subsidies have now been stopped.

However, it did not have to be like that because there are many sources of organic feedstock materials for running anaerobic digestion plants and making biogas. In recent years there has been a realisation that it is much better to use manure, and all sorts of types of organic waste, which otherwise get dumped in landfills and cause big pollution hazards.

What is Biogas as a Renewable Energy Potentially Going to be Able to Do?

The following is big news.

In the UK biogas from wastes could, heat half the homes in the UK (if all the waste sources experts consider viable as organic feedstocks, were digested).

Don’t take our word for it that there is scope for large numbers of anaerobic digestion plants.

That’s a fact recognised by the US Department of Agriculture in their Renewable Energy Roadmap which sets out to get 11,000 biogas (energy from waste) plants built solely on large US dairy farms, by 2020.

The Benefits of Renewable Energy

Renewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries. Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits.

The results of a recent review of the literature  concluded that as greenhouse gas (GHG) emitters begin to be held liable for damages resulting from GHG emissions resulting in climate change, a high value for liability mitigation would provide powerful incentives for deployment of renewable energy technologies.

In international public opinion surveys there is strong support for promoting renewable sources such as solar power and wind power. At the national level, at least 30 nations around the world already have renewable energy contributing more than 20 percent of energy supply.

National renewable energy markets are projected to continue to grow strongly in the coming decade and beyond.

Some places and at least two countries, Iceland and Norway generate all their electricity using renewable energy already, and many other countries have the set a goal to reach 100% renewable energy in the future. For example, in Denmark the government decided to switch the total energy supply (electricity, mobility and heating/cooling) to 100% renewable energy by 2050. via Wundef

Clean energy is good for the environment, but it also makes sense for the economy. Clean, green energy like wind and solar is reliable and creates lots of good jobs. In fact, according to Fortune Magazine, in 2017, “The solar and wind industries were each creating jobs at a rate twelve times faster than that of the U.S. economy.”

Wind and solar are the clear solutions to reducing carbon pollution and slowing climate change. via  CleanChoice

Conclusion – to the “What is Renewable Energy” Debate

Renewable energy is no longer an insignificant subset of the global energy economy. Renewable energy is now the fastest-growing source of energy in the world, and its use is on the rise across all continents. Renewable energy sources supply electricity to hundreds of millions of people and generates hundreds of billions of dollars in economic activity.

So, once again what is renewable energy?

Renewable energy is energy produced from sources that can naturally replenish themselves over time. The most common of these sources are solar, wind, hydro, geothermal and biomass energy. via Facts to Know

Examples of Renewable Resources

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We provide Examples of Renewable Resources: A renewable resource is one that replaces itself normally at a rate equal to or higher than human usage. The term normally refers to renewable energies, which are self-sustaining in time. There are 5 primary kinds of renewable resources, solar, wind, hydropower, geothermal and biomass. Many countries today are increasing their use of renewable energies to change fossil fuels, such as coal and petroleum, which take thousands and occasionally millions of years to change themselves, making them non-renewable resources.

Examples of non-renewable resources are fossil fuels, like coal, oil, natural gas and soil, rocks, minerals. As soon as they have been gotten rid of from a mine or removed it takes a very long time indeed for them to re-form.

We have actually counted on fossil fuels for our energy requires because, traditionally, these fuels have actually been reasonably inexpensive, and rewarding for designers. With increasing fuel costs, issues about ecological effect and growing political concerns about oil providers, renewable energy is acquiring in importance.

Renewable resources are natural sources that can not be diminished. Examples consist of solar, wind, hydroelectric, biomass and geothermal. Fossil fuels like coal, oil and even clean-burning gas do not exist in unrestricted supply. One day they will be gone. In additional to unending availability, renewable resources create less environmental impact, specifically pollution.

Generally speaking renewable resources can be categorized as natural renewable resources and non-organic renewable resources. Plant and animal species are the examples of natural renewable resources whereas gases like oxygen and water are the examples of non-organic renewable resources. Birds or animals getting extinct have now become a regular function. Although some species have actually disappeared from the earth's surface due to natural tragedies, most of them have actually become extinct due to excessive hunting and poaching.

Examples of renewable resources are fresh water, fish, and soil. Non-renewable resources such as oil and minerals are irreplaceable, and they do not effectively regrow once they are consumed.

Renewable energy describes power created by a renewable source. When the energy is generated, the resource is not exhausted or consumed. They are naturally replenished, and can either be managed so that they last permanently, or their supply is so enormous human beings can never ever meaningfully deplete them. Unlike fossil fuels, renewable energy sources do not release carbon dioxide as a byproduct into the atmosphere. As the quantity of nonrenewable fuel source resources in the world lowers, it is ending up being increasingly essential to discover and make use of alternative fuels.

In the US, Alternative Energy is made use of and in general it implies the like renewable, implies any thing besides deriving energy through Fossil Fuel combustion. Alternative energy is likewise a natural deposit ends up being a renewable resource when it is replaced by natural processes at a rate which is quicker than its consumption rate by human beings. Solar radiation, tides, winds and hydroelectricity are the sources which are of lasting accessibility. Renewable resources may include mean products like wood, paper, and leather, if their harvesting is carried out in a sustainable way.

So, to summarize, we will certainly just say that renewable resource is a natural resource that can replaced with biological or other natural processes and renewed after a long time. They are part of natural environment however they are threatened by commercial developments and development. Solar radiation, biomass, tides, geothermal, and winds are examples of renewable resources.

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