What comes from the renewable souces geothermal, wind, solar and water?
Do they produce heat, electricity, light, what? How do they help us? And is this right: wind gives electric power by turning turbines and solar power gives elecricity by absorbing the sun’s rays? Would absorbing the sun’s rays with solar panels reduce greenhouse gases? And are those sources even renewable? How?
Windmill Farms answers:
- Geothermal energy is heat that comes from within that Earth, say from places like underwater volcanic vents, that heat water and turns it to steam, which in turn makes a turbine spin.
– Wind energy is comes from a wind mill with a ridiculously large turbine that creates energy. I don’t know how, but it does.
– Solar energy is rays from the sun that come constantly, never stopping until the position of a solar panel is pointing away from the Sun. The Suns energy is renewable because it will not go away in anyone living today’s lifetime. The Sun is supposed to go into Supernova in 3 billion years, outliving a single thing alive today. Thats why its considered renewable TODAY.
– Water energy is water that is run through a turbine, therefore causing it to spin. Like with the windmill, I have no idea how, but it does.
All of these are renewable sources of energy because not a one of these sources will lose power in anyone living today’s lifetime, unless, by some odd chance, that we get hit by an asteroid, or if theres no one else to use it due to nuclear fallout. Or some other cause that wipes out human life.
HELP school questions?
How is electricity transmitted to power something from a wind turbine?Is it through wires,or through what?I’m really confused >.<
And basically how does one work?
Please describe it so I can understand it
Don’t worry I am not cheating we were just learning about it today in my online school and I was confused my notes sucked and I feel like I need to be more prepared in case there’s a test.
Windmill Farms answers:
Wind power involves converting wind energy into electricity by using wind turbines. A wind turbine is composed of 3 propellers-like blades called a rotor. The rotor is attached to a tall tower. The tower looks like a very tall pole. On average wind towers are about 20m high. The reason why the tower is so tall is because winds are stronger higher from the ground.
Wind comes from atmospheric changes; changes in temperature and pressure makes the air move around the surface of the earth; all of which is triggered by the sun. So in a way, wind energy is another form of solar power. A wind turbine captures the wind to produce energy. The wind makes the rotor spin; as the rotor spins, the movement of the blades spinning gives power to a generator which makes energy. The motion of the wind turbine turning is called kinetic energy, this power is converted into electricity.
The conversion of wind into electricity
Wind power is converted into electricity by magnets moving past stationary coils of wire known as the stator. As the magnets pass the stator, AC electricity is produced. It is then converted into DC electricity which can be used to charge batteries which store the electrical energy or can also be fed into a grid interactive inverter for feeding power into the electricity grid.
The benefits of wind power
Wind power is a clean energy source that can be relied on for the long-term future. A wind turbine creates reliable, cost-effective, pollution free energy. It is affordable, clean and sustainable. One wind turbine can be sufficient to generate energy for a household. Because wind is a source of energy which is non-polluting and renewable, wind turbines create power without using fossil fuels, without producing greenhouse gases or radioactive or toxic waste. Wind power reduces global warming.
Do Liberals care more about cleaning the environment or about gaining power?
Liberals are so damn fake that I would rather be a toad than to be a Liberal. Lets be for real here there is no alternative energy out there that is 100% clean. Batteries are full of acid and you need to burn coal or use nuclear energy to produce electricity. Please don’t mention solar panels cause they are still in the developing stage and its going to take many years before we get one that works decent.
Meanwhile we do have a great alternative energy that produces very little CO2 and everyone is embracing it except the Liberals. You can’t just jump into electrical energy when it isn’t ready so something in between is perfect. With Natural Gas we can reduce pollution by more than half within a few years. Everyone is embracing it too and GE the one working with windmills and solar panels agrees with me. That is why they don’t want to work in America. ITS BECAUSE OF THE LIBERALS THEY DON’T KNOW WHAT THEY WANT.
General Electric, a leading producer of gas-turbines and wind power, wants Congress and the Obama administration to pass a clear energy policy that sets green standards while recognizing natural gas’ importance as a backbone to alternative energy plants, a leading GE executive said Thursday.
The company, which is headquartered in Fairfield, Conn., recently unveiled plans for a “FlexEfficiency” power plant pairs with wind and solar energy but relies on natural gas to ensure that power needs are met even when wind or sun conditions are poor for energy production.
Paul Browning, President and CEO of GE Thermal Products, spoke Thursday about the future of FlexEfficiency technology in the United States.
Paul Browning, president and CEO of GE Thermal Products, headquartered in Schenectady, N.Y., said at a meeting with reporters that the mix will allow for a record 61-percent fuel efficiency — meaning 61 percent of fuel burned is turned into useful energy. That’s 15 percentage points better than existing flexible, gas-fired power technology. He said in the past, plants have allowed either efficiency or flexibility, but never both at this level.
But he said it could be hard to attract investors to the technology in the United States, because the country lacks clear-cut laws that encourage clean energy use and allow companies to know whether they can recoup their investment after they buy into the efficient but initially expensive plants
He said the European 20-20-20 policy, which mandates the use of 20 percent alternative fuels, a 20 percent increase in energy efficiency and a 20 percent reduction in greenhouse gas emissions by 2020, creates a much better environment for the technology.
“That’s a very clear thing for a business like mine to plan around,” he said. “When you look at the U.S., where is the analog to that?”
“It’s hard for companies to make those long-term bets,” he said.
Browning also said GE’s new technology relies on natural gas, and the company wants to encourage a U.S. policy that recognizes the fuel’s importance to the future of alternative-energy plants.
Windmill Farms answers:
Well most liberals i hear about don’t like nuclear power(i do frankly) but asside from that if it can be demonstrated that a form of power generation is less impactful on the environment i’ll support it. Ultimately though i think the form of energy we should use depends on the region you are talking about. Electricity is electricity weather you get it from natural gas, nuclear energy, solar, etc. The main questions are ones of side effects, efficiency, and availability, and output.
Renewable Energy Sources.. ?
Hey guys and girls of Y!A
I’m most definitely not going to ask for every tiny bit of information from you, because that’d be cheating..
But i have a few questions for you all
Q1: What 2 renewable energy sources (wind power, solar power ect..) do you think are best for the environment?
Q2: What 2 renewable energy sources are most effective?
Q3: What does Biomass cost?
- ANY LINKS TO RESOURCE SITES ARE APPRECIATED BTW! –
Thanks and don’t worry if you don’t know an answer to a question, you can just send me a link of an internet site on it.
- Kayleigh x
Windmill Farms answers:
–Biomass Energy: Cost of Production
Combustion and Gasification Facilities
Using conventional combustion technology without cogeneration, the estimated cost to generate electricity from biomass ranges from 5.2 to 6.7 cents per kilowatt-hour in Oregon and the Pacific Northwest. Actual costs would vary depending on financing, location, system design and fuel cost. In the future, new gasification technologies may lower the cost of generating electric power from waste wood and other biomass fuels. In contrast, the estimated cost of generating electricity from a new natural gas-fired, combined-cycle power plant is 2.8 cents per kilowatt-hour. More……… Http://www.oregon.gov/ENERGY/RENEW/Biomass/Cost.shtml
Wind power is the conversion of wind energy into a useful form, such as electricity, using wind turbines. At the end of 2008, worldwide nameplate capacity of wind-powered generators was 121.2 gigawatts (GW). Wind power produces about 1.5% of worldwide electricity use, and is growing rapidly, having doubled in the three years between 2005 and 2008. Several countries have achieved relatively high levels of wind power penetration, such as 19% of stationary electricity production in Denmark, 11% in Spain and Portugal, and 7% in Germany and the Republic of Ireland in 2008. As of May 2009, eighty countries around the world are using wind power on a commercial basis.
Large-scale wind farms are typically connected to the local electric power transmission network; smaller turbines are used to provide electricity to isolated locations. Utility companies increasingly buy back surplus electricity produced by small domestic turbines. Wind (and solar) energy as power sources is favoured by environmentalists as an alternative to fossil fuels, because they are plentiful, renewable, widely distributed, clean, and produce no greenhouse gas emissions; however, the construction of wind farms is not universally welcomed due to their visual impact and other effects on the environment.
Wind power, along with solar power, is non-dispatchable, meaning that for economic operation all of the available output must be taken when it is available, and other resources, such as hydropower, must be used to match supply with demand. The intermittency of wind seldom creates problems when using wind power to supply a low proportion of total demand. Where wind is to be used for a moderate fraction of demand, additional costs for compensation of intermittency are considered to be modest.Compared to the environmental effects of traditional energy sources, the environmental effects of wind power are relatively minor. Wind power consumes no fuel, and emits no air pollution, unlike fossil fuel power sources.More…………..
Http://en.wikipedia.org/wiki/Wind_power Solar power is by far the Earth’s most available energy source, easily capable of providing many times the total current energy demand. The largest solar power plants, like the 354 MW SEGS, are concentrating solar thermal plants, but recently multi-megawatt photovoltaic plants have been built. Completed in 2008, the 46 MW Moura photovoltaic power station in Portugal and the 40 MW Waldpolenz Solar Park in Germany are characteristic of the trend toward larger photovoltaic power stations. Much larger ones are proposed, such as the 550 MW Topaz Solar Farm, and the 600 MW Rancho Cielo Solar Farm. Covering 4% of the world’s desert area with photovoltaics could supply all of the world’s electricity. The Gobi Desert alone could supply almost all of the world’s total energy demand.
Solar power is an intermittent energy source, meaning that solar power is not available at all times, and is normally supplemented by storage or another energy source, for example with wind power and hydropower.More…………..
Solar energy Questions?
How does Solor energy work?
Where in Canada is the source used?
How much oif canda’s total energy production is made up from solor energy?
How does solor energy impact the economy?
What is the goverments position on solor energy
What is the future trend for solar energy?
Windmill Farms answers:
At noon in Canada, on any given day, so many Joules of energy fall on a square meter of area on the ground or roof. If they fall on a solar photo-cell then it will generate so many volts and amps of electricity. The wind energy and soalr energy are the power of the future so all governments are encouraging their use. They do not create greenhouse gases that polute or create global warming but they are expensile.
Powered by Yahoo! Answers