Whats your thought about pollution-free source of energy except soler energy ?

Answer 1

In present position we have four sources available Solar, Wind, Nuclear and Bio Mass (Cow Dung based).

Solar and wind power generation units are very costly and unreliable till now. Photovoltic cells needed for solar power generation panels use only 8 to 10% of energy and are very costly for general public.

Wind power generation needs constant wind and without it we do not get anything.

Nuclear is a good choice although it has its negatives but as on date it is the best option for the rising power need of all countries. With latest developments in this field chances of radiation pollution and damages has gone down considerably.

Dung based bio mass power generation units are a very good option for countries with high cattle population. It can be insalled in villages and each village can have its own production unit. Does not involve a lot of technology and so can be handled by locals. Is not very costly and per MW capital cost is very less than others.

Its waste material is a very good compost and can be used in our farms thus resulting in less use of chemical fertilisers and helping in decreasing pollution there also.

Answer 2

You should be more specific with regards to your question.

There is no viable pollution free source of energy at this point in time.
If you are aiming at zero carbon emissions, solar and wind are still out of the running. Solar because the cost is so high and the reliability of the current products so low. Wind, doesn't blow strongly enough all the time, everywhere, to make it a reliable source.
The general public will not return to a medieval life style, which is what a zero emission economy means at present.

Would You be willing to give up cars, buses, trains, planes A/C units, computers for the most part, and a plethora of other electrical and fuel using devices the public at large depend on every day..?????
The answer in the west is a resounding NO.
Oh by the way, the world won't be ending for humanity any time soon if we use the other sources we have.

The best option for a carbon free, sustainable electric grid in all countries in the world. Is and always has been NUCLEAR energy.
I personally have learned to disregard the Marxist doom Sayers of the extreme environmentalist movements. There has been one serious accident. All the other small incidents that have occurred have not brought about our imminent destruction. They have brought about a greater understanding of how to control and harness the reactive energy.
The snarling opposition has always harnessed the reactionary Media to scream there doom saying to the rest of us. Most people couldn't give a $%!* as long as the beer stays cold in the fridge.

Answer 3

All I know is if we sit on our butts and let Nuclear Energy be the only choice for pollution-free energy then it always will be.
And in regards to nuclear waste? I would call that Pollution wether it be buried underground near our water sources or not.
But, I digress. The only way to move forward in this respect, is to learn more, build more and improve what we know to make it more cost efficient, competitive and viable. Can't do that if the naysayers get their way.
It is true that solar products are still very inefficient, but vs. what they were even 5 years ago??? They are about 80% more efficient.
Wind power...does take up a lot of space and maintenance, and wind is sporadic and to slow for a lot of turbines out there, in a lot of places in the world. BUT, this tech is improving in leaps and bounds as well and new spins (pun intended)on this tech is yielding more info and new products all the time.

Don't know what we might have if we give up and rely soly on what we already have.

Answer 4

Nuclear energy is not pollution free, it contaminates and can be real bad killer.
Wind and tidal energy are good options, so is Solar which probably is the best option.
Geothermal energy is another option.

Whoever says that solar is unreliable hasnt used it and just going by some wrong reading.

BTW, Wind,geothermal, tidal are all indirectly from suns energy so you can call them as indirect solar if you will.

Bio-diesels are good but they do pollute a bit.

Nuclear fusion energy (fusion reactors) doesent exist today but if they did that would be one good clean source.

Answer 5

Wind is the easiest and most widely available. Many areas of the earth are suitable for wind energy, and it has the advantage of not needing muh infrastructure.

Geothermal is great, but has limited availability.

The oceans have a lot of potential. Energy is already being generated through wave and tidal energy, and there is room to grow. There are also experiments with generating energy through the thermal differentials between surface and deep ocean water.

Answer 6

A combination of many. Some areas will be better adapted to wind or solar. We are limited in where we can add hydro electric. Many sources will have to be used in combination with others, like solar can't produce energy at night, so an alternate will need to be used. I think there is even room for natural gas and nuclear, due to them not relying on nature.

Answer 7

The whole idea stinks. But generating heat and power from livestock manure is appealing. The compost is placed into an oxygen-free machine that separates the methane gas and then uses it to create electricity to power farms or transport over the grid.
The technology is an important component in the fight against climate change. Normally, farms store the waste in a lagoon and then later use it as a fertilizer. But, that natural decomposition creates methane, which is actually 21 times more potent than carbon dioxide when it comes to affecting the Earth's temperature.

The ability to capture that gas and then reuse it in an environmentally friendly manner not only lessens greenhouse gas output; it also reduces the need for other types of fuel sources.

Experts also say that the process by which the methane is extracted through an "anaerobic digester"—an oxygen free machine—cuts both odors as well as the volume of solid manure by 90 percent. It thereby minimizes surface and groundwater contamination. The remaining waste makes for better quality fertilizer. About 135 electricity-producing manure digesters now exist on U.S. farms, says the U.S. Environmental Protection Agency. Those systems produce 248 million kilowatt-hours of electricity annually.

According to the Wisconsin Public Service Corp., the cost of a digester depends on specific farm conditions and the return on investment can range from a few years to more than 10 years. Systems typically use about 30 percent of the biogas to heat the digesters with the balance being used to supply a farm's electricity or heating needs. Typically, a minimum herd of 300 dairy cows or 2,000 swine is needed to make such a system feasible. The cycle time to turn the manure into heat and power is 20-30 days.

Illinois-based Ameren is now trying to determine the feasibility of using methane gas from hog manure. It is hopeful that it will be able to install an anaerobic digester and generator by year-end. The central idea is that a waste byproduct—manure—can be processed and converted to electricity.

Manure collected from a farm in Carlyle, Illinois would be stored in the digester. Methane gas would then be siphoned off and used to power the generator, which could produce between 200-400 kilowatts of electricity. The electricity would be used by the farm, which has a peak electric demand of over 700 kilowatts. The heat created by the generator would be used to heat the digester.

"The primary benefit would be renewable energy credits, or carbon dioxide (CO2) offset credits, that Ameren could obtain to use in responding to various future government initiatives," says Ameren Strategic Analyst Paul Pike. Pike notes for each one-ton emission of methane gas captured and converted to energy equals 21 tons of CO2 not released into the environment. Ameren is working with the Illinois EPA and the University of Chicago on the project.

Answer 8

Sea waves generate pollution-free energy by pushing/pulling large amount of air via a special designed duct containing a bi-directional fan driven electric generator

Answer 9

Wind, Hydro, Biomass are pollution free sources of energy.

Answer 10

People pushing alternative energy are usually there with their hand out asking for government cash because the alternative isn't (and probably never will be) cost competitive.

Using corn to make fuel is a good example.