A brief look at Wind & Hydro Power…

http://www.environment.co.za

Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy replaces conventional fuels in four distinct areas: electricity generation, air and water heating/cooling, motor fuels, and rural (off-grid) energy services.

I want to start a series on the future in my opinion of sustainable energy sources that would be more beneficial to the planet. As the definition stated above; Renewable energy is sometimes known as Green energy. Green is commonly associated with nature as this energy comes from nature; hence, waste byproducts are non-existed to the Earth’s little consequence. You most likely heard some chatter in the news over the argument of renewable energy and our dependence upon crude oil. We can assume that putting gas in our cars is more straightforward and practical, mainly because we are used to doing it. Mainstream media and our government told us that oil is the bloodline of capitalism—it stems the economy due to the money being poured into it by the populous. The argument for a long time has been; is it hurting our environment? It appears to be now that that discussion is dying down, and more scientist agrees that pollution from fossil fuel such as oil and coal are a danger to Mother Nature. If Mother Nature fails, then the animal kingdom and all life on Earth are in peril. Indeed, that means humans too.

Let us start with:

 

http://www.ecitb.org.uk

Wind energy or wind power is extracted from air flow using wind turbines or sails to produce mechanical or electrical energy. Windmills are used for their mechanical strength, wind-pumps for water pumping, and sails to propel ships. Wind power as an alternative to fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation, and uses little land. The net effects on the environment are far less problematic than those of nonrenewable power sources.

 Wind farms become quite popular among the nation-states in demonstrating the effectiveness of wind energy. They have primarily used to power a township with electricity, and depending on the size of the farm, it could power greater masses of areas to the point of an entire city. Now I don’t know if that is entirely possible yet, but I know townships have been powered by such energy. The measurement of their energy is megawatt (MW), in which some like Gansu Wind Farm in China could reach up to 6000 MW. Wind farms can be offshore and onshore. Onshore is land, and offshore is sea/ocean. The London Array in the United Kingdom is the largest offshore wind farm; a floating farm can reach 630 MW.

Many countries are starting to focus more on wind power as below shows the top to the least–

Top wind-power electricity-producing countries in 2012 

 Country

 Wind-power Production (1)

  % of World Total (2)

 

 United States

 140.9 (1)

 26.4 (2)

China

 118.1

 22.1

Spain

 49.1

 9.2

Germany

 46.0

 8.6

India

 30.0

 5.6

United Kingdom

 19.6

 3.7

France

 14.9

 2.8

Italy

 13.4

 2.5

Canada

 11.8

 2.2

Denmark

 10.3

 1.9

 (graph info provided by Observ’ER – Electricity Production From Wind Sources) While the rest of the whole hovers 82.0 in wind-power production.

engineering.curiouscatblog.net

As a nerd, a Star Wars fan, I can use the quote of Obi Wan Kenobi, “You’ve taken your first step into a larger world,” as it pertains to the world’s decision value wind energy with actions.

That larger world is a clean environment prolonging the life of Mother Nature and, consequently, our lives.

 Sources used for this article were GWEC, Global Wind Report Annual Market Update 2011, Observ’ER, “Wind power is the cheapest energy, EU analysis finds”. the guardian. Retrieved 15 October 2014, “Wind Energy Variability and Intermittency in the UK”. Claverton-energy.com, and wikipedia.org.

 

Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy replaces conventional fuels in four distinct areas: electricity generation, air and water heating/cooling, motor fuels, and rural (off-grid) energy services.

 Hydropower or water power is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes. In the past, hydropower consists of many kinds of watermills used as a renewable energy source for irrigation and the operation of various mechanical devices, such as gristmills, sawmills, textile mills, trip hammers, dock cranes, domestic lifts, and ore mills.

Resource Efficiency

 www.wclimate.com

One of the oldest forms for this energy is the use of dams. Humans have constructed dams for a decade; the common animal beavers were the first to use such a method. Before dams were watermills/water wheels, these were used in ancient India, Ancient Rome, and China in early AD. The use of canals was used for farming and was a quicker way to water the plants and be used for other means for villages and towns. Getting to the point of electricity is where dams come in as the section off of water and use its pressure to massive power generators to create electricity to the power of townships and more. Humans also develop machinery or other tools to harness the power of water—a natural resource that covers a good percentage of Earth.

Green Renewable Energy

 greenrenewableenergy.org

The advantages of using hydroelectricity are:

*Cleaner power, fewer greenhouse gases

 Like all hydro-electric power, run-of-the-river hydro harnesses the natural potential energy of water, eliminating the need to burn coal or natural gas to generate the electricity needed by consumers and industry.

*Less flooding/reservoirs

 Substantial flooding of the upper part of the river is not required for run-of-river projects as a large reservoir is not needed. As a result, people living near the river don’t need to be relocated, and natural habitats and productive farmlands are not destroyed.

Hyong Kim’s Erratic Energy Debate_Part 4 – Hydroelectricity: The …

 

 tunza.eco-generation.org

Disadvantages are:

*Unfirm power

 Run-of-the-River power is considered an “unfirm” source of power: a run-of-the-river project has little or no capacity for energy storage and can’t coordinate the electricity generation’s output to match consumer demand. Furthermore, it creates more power when the water flow is high and less when it is low. For example, the spring season is high but low in the hot summer months and cold winter months. As one would imagine, less power for air conditions in the summer and heaters for the winter. In turn, it brings major disadvantages.

*Availability of sites

 The actual power at a site is a result of the head and flow of water. Damming a river, the head is available to generate power at the face of the dam. A dam may create a reservoir hundreds of kilometers long; in run-of-the-river, a canal typically delivers the head, pipe, or tunnel constructed upstream of the powerhouse. Regrettably, due to the cost of upstream construction, a steep drop in the river is in demand.

AEP.com – Hydro

 www.aep.com

This is one of the oldest forms of renewable energy used globally in first and third world nations. From water irrigation to hydroelectricity, it is without a doubt that this clean alternative is a planet saver from its principal component waters is ever so replenished by the rain itself.

Cited sources were:

http://www.hydropower.org/

http://energy.gov/eere/office-energy-efficiency-renewable-energy

“History of Hydropower”. US Department of

http://www.unep.org/dams/WCD/

 

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