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Renewable Energy - Sources That Never Get Exhausted
Author: Matthew Hick
Nonrenewable energy sources represent about 90% of the energy used today. These sources are being depleted. Since they are known to have an effect on air quality, causing human and environmental health problems, a greater emphasis is being placed on renewable energy sources as the new frontier for energy. Renewable energy sources consist of solar, hydro, biomass, geothermal and ocean. These sources of energy will never become exhausted and are environmentally friendly, since they do not contribute to greenhouse effects or global warming.
Solar energy is the most readily available renewable energy source. We have used the sun's energy for billions of years. Prehistoric men magnified its strength to start fires. Today, solar panels absorb energy from the sun to produce heat for cooking and heating, as well as, for electrical needs. This heat absorption is stored for later use and is an indirect conversion of energy. Currently, electric companies are trying to use photovoltaic technologies to convert solar energy directly to electricity.
Hydro energy draws on energy produced by flowing water. Waves are the result of wind interacting with the surface of the sea. This interaction produces a transfer of energy that can be extracted for power generation using turbine generators. Although hydropower is non-polluting, it can do environmental harm. Hydroelectric generating stations can change the flow of the sea and in doing so harm plants and animals.
Wind energy, or kinetic energy, is drawn from the movement of air. It has been used for hundreds of years for sailing, grinding grain and irrigation. Today, wind turbines transform energy from wind to mechanical energy or to charge batteries. The wind machines, or wind turbines collect the kinetic energy by capturing the wind in its blades. The blades then turn an electric generator to produce energy. Unfortunately, wind energy collection is unavailable on windless days. Even though it is a clean form of energy it has had a negative effect on the wild bird population and some consider the giant wind turbine machines not attractive looking.
Biomass energy comes from wood, garbage, food crops, manure, grasses and plants, agricultural and forestry waste and residue. It basically comes from refuse. This renewable energy is also not new. It was used over 100 years ago in the form of wood burning, which supplied 90% of energy needs at that time. When biomass is burned, it produces heat or electricity. It can also be converted to methane gas, which is the main ingredient of natural gas. It represents 3% of the energy in the United States. Although biomass can pollute the air and releases a greenhouse gas, it is not as pollutant as fossil fuels.
Geothermal energy is basically the Earth's heat. It is drawn from hot dry rocks, magma, hot water springs and hot geysers. These are found inside the Earth's underground. Some are found deep in the earth's surface and others are found closer to the surface. Today, this type of energy is used to heat water in swimming pools and spas, as well as, to warm buildings like greenhouses. It can also be used to produce electricity through the use of a geothermal power plant. In these plants the hot water travels through turbines, which are connected to a generator.
Ocean Energy is obtained from ocean waves or temperature differences in water. Wave energy is the kinetic energy from the movement of water. Tidal energy entails trapping tidal waves in reservoirs behind dams. Ocean Thermal Energy Conversion uses the differences in water temperatures from the surface water to deeper down depths of water as an energy source. In order for this to work there must be a temperature difference of 38 degrees Fahrenheit.
As you can see, there are various renewable energy sources available to us as an alternative to fossil fuels. There are many advantages to them among the most popular being that they will not deplete in supply, meaning they will be around forever. Renewable energy sources are not new. They have been utilized in some way for many years. Unfortunately, low fossil fuel prices have stunted renewable energy's popularity and growth in the United States. But an increasing awareness of human and environmental concerns, as well as, a need to find non-exhaustible energy sources, will keep it as a mainstay for the future.
Article Source: http://www.articlesbase.com/environment-articles/renewable-energy-sources-that-never-get-exhausted-101596.html
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Prove if what you’ve written is true….? Well, most of it seems correct enough, though a few pieces of information made me smile, and some things would probably need a few more nuances to be absolutely correct, but I guess that’s the way it always is. Right now the US $1 is about 5.60 danish kroner btw.
Did you happen to use some of these websites for information:
http://denmark.dk/portal/page?_pageid=374,477789&_dad=portal&_schema=PORTAL
https://www.cia.gov/cia/publications/factbook/geos/da.html
http://en.wikipedia.org/wiki/Denmark
You’re pretty liberal. Not all the way, but far more so that conservative.
Try to find a way to heat water using sunlight instead of the hot water heater. Showers some people use in camping, for example, have metallic bags to collect sunlight and heat water, you might be able to try something like that on a large scale.
The biggest carbon footprint is going to be in heating and cooling. Do without A/C in the warm months. Close the school in the winter and go during the summer to avoid heating the building. In the cooler times, like spring and fall, dress warm enough to do without turning the heat on. As long as you keep that A/C and heat off, you will go a huge way toward being carbon neutral.
try http://www.epa.gov/
Father Christmas.
Water?
can you proff this?
More than half the total Danish population, Denmark has a population of about 5,418,000,is employed with roughly 67 percent of the labor force working in the service sector and roughly 27 percent engaged in manufacturing, construction, and mining. It said on Microsoft Encarta Encyclopedia “Almost all Denmark’s electricity is produced in thermal plants using coal or petroleum products, though the use of coal has declined in the 1990s. Production in 1997 was 39.2 billion kilowatt-hours. There have also been efforts to develop renewable energy sources such as wind and solar power.” I wish that we had solar powered and wind powered electricity.
Among the universities in Denmark are Alborg University; Arhus University; the University of Copenhagen, the Royal Veterinary and Agricultural University; and the Technical University of Denmark. These are 7 of the 12. In the early 1990s some 360 folk high schools, agricultural schools, home economics schools, and other specialized high schools. Many of the schools are private, but the state contributes to their support.
In Denmark they have three main meals, breakfast, lunch, and dinner. For breakfast, the adults usually have coffee or tea and bread with jam or cheese, and the kids have milk with cereal products, like us. For lunch they have bread and butter with meat, or pig’s liver and lard in a spread able state. For dinner, also called middag, which is eaten in the early evening, they always try to eat a hot dinner at home with their family, that’s very important to most Danes. They also have another meal that is called Kaffeborde, which is like a tea time type thing in which they have a desert and tea.
The religion of Denmark is mostly Christian, but they also have other churches, nobody forces anybody to go to any church or even church at all. There are some people that believe in the Nordic religion. That is one of the religions that believe in many gods. Another prominent church in Denmark is the church of Denmark; this is run by an important political person and is practically run by state. Many citizens of Denmark are members of this church. That’s one difference between their country and ours, the separation of church and state.
The Danish currency is the krone, or crown, 6.60 kroner equal U.S. $1; 1997 average. The National Bank of Denmark is the bank of issue and is the center of Danish finance, with head offices in Copenhagen.
Denmark has a temperate climate the average temperature in summer is about 61° F and in the winter the average temperature is about 33° F. Average annual rainfall is about 24 in. Compared to us the average annual temperature ranges from 51 degrees on the Pacific coast to 40 degrees in the northeast
In the writing of this paper, I learned many new things that I didn’t know before about a country that is in my heritage. I learned about Denmark’s Danish, currency, religion, Denmark meals, their jobs, and Universities in Denmark. I also learned that they speak Danish; many also speak German and French. Very few non-Danish people speak Danish, so almost all Danish international business people speak English as a second language. The reason that I choose this culture is because my moms and dads culture both are this and this was a great chance to find out about more about my heritage.
Could you give me links websites to get nice statistics on energy consumptions?
You know interesting ones like :
the amount of money wasted in lighting light a light bulb a day is enough to feed 20 homeless people…
(not literally ..but you understand what I’m looking for??)
I’m trying to make a ‘fun’ presentation for kids on energy and why we are doomed and need to utilize renewable energy sources, mainly solar power( I would like statistics on that too…)
thanks!!!
I need help solving two Christmas riddles, can anyone help?
I am really tired of all this talk of “Green” initiatives. Recycle this & recycle that. Stop this tradition whoa! I think, Hey! I’ve been “Green” (red & green that is) for a long time. And renewable energy sources; you’ve got to be kidding me. What energy source is more renewable than reindeer? I feed them hay, they fly and run all over the world, they _ _ _ _ (well you know what they do after they eat) and then it enriches the soil so I can grow more hay and the whole thing starts all over. Anyway… I am up in arms about the latest new “Green” initiative threatening to change how presents are packaged. Just to save a few trees. They won’t be nearly as colorful with this final touch gone. What am I talking about?
This exists in three states and it is an integral part of the entire Christmas experience. In one state, it is hard and cold, sometimes shiny and can be use as a decoration, a spear or a drink stir. In another state, it keeps the reindeer going. Mrs. Claus loads bottles of it in my sleigh. She calls it medicine in a bottle. It’s all part of the health craze that she wants me to get excited about. In another state, it creates a magical backdrop for me and my sleigh, especially in cities where the warmth of urban life is plentiful. What am I talking about?
What are some Renewable Energy Sources?
a group of kids from my school (including me) want to make our school carbon neutral and for the project we want to put solar panels and wind turbines (not the huge ones) on our school what are some other Renewable Energy Sources?
Thanks in advance
Where do I stand politically?
These are the issues I feel strongly about, and how I feel about them. Where would you say I stand politically?
___________________________________________________________________
NO to abortion, except in the rare case where the baby would die anyway AND the pregnancy would cause medical problems to the mother.
YES on green initiatives, whatever it takes to become 100% sustainable, with renewable energy sources. and YES to protecting our natural resources and wildlands. Eventually NO more drilling at all, but for now NO more offshore drilling, and increase our acreage of federally protected wildlands. Implement more non-pollution, recycling, and other green things into communities.
YES on immigration, even without the proper paperwork, IF they’re willing to work and make a life here, not just sit around on welfare and expect things to be handed to them.
NO on stricter school standards, NO on “teaching to the test”. YES on a broader home-schooling base, YES on hiring teachers who know what they’re doing in the first place, NOT “trying to fix the ones we have”. and YES to increased arts and music programs in school, regardless of the cost.
NO to retail growth and urban development.
YES to Universal Health Care.
YES to a sliding tax percentage, dependent on your income.
NO to war, get the troops we already have there to clean up the mess we’ve made so far, then get everyone OUT and DON’T send any more.
NO to Big Pharma, Big Corn, Big Soy, and Big Beef. Teach the people the truth about which foods harm & which foods heal, make those foods more available without Godzilla-sizing them with chemicals or polluting it further, then step out of the equation and let the people do it. No need to “sneak” “whole grain” into Cookie Crisp… just teach the kid to like Raisin Bran in the first place. Encourage the return of the backyard garden.
YES to a pay decrease for public service personnel such as police, firefighters, and medics, IF the choice is between a pay cut or a workforce cut. I’d rather have the ones we do have paid less than out of a job altogether.
YES to legalising marijuana. If it’s not “ooh taboo” anymore, yes people will go nuts with it at first, the “thrill” of it, but once that dies down it will only be the people who were going to do it anyway. Reduction in drug-related crime.
“Avomatic”… I wouldn’t *want* them to be under-paid… but if the two choices were either they’re under-paid or not there at all, I’d rather they be under-paid and there than adequately paid and unavailable.
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It’s posts like this that keep me coming back and checking this site regularly, thanks for the info!