Showing posts with label solar. Show all posts
Showing posts with label solar. Show all posts

Natural Gas Must Not Be Used as a Substitute for Clean Power Generation

It is proposed that natural gas be used instead of coal for electric power generation. The national climate summit put a deadline of 2012 for this to happen with the dirtiest power station, Hazlewood. Environment Victoria took up the challenge saying that natural gas with renewable energy resources could reduce Hazlewood's pollution by 14.4 million tonnes to just 1.8. Wind generation would gradually replace natural gas.

The claim is exceedingly optimistic. Too much faith is placed in wind generation despite the fact that electricity production by this means has peaked in northern Europe and it still does not make a profit.  Beyond Zero Emissions is even more optimistic. Its plan aims to end Hazlewood's use of coal by 2013.  Failure to reduce emissions means it could be closed.

The future looks good for natural gas production with gas being obtained from coal seams and 20 gas power plants being planned. Natural gas is not really clean though. Indeed, leakage of methane gas occurs. Replacing coal power generation with gas as a temporary measure is a mistake. What is the point of wasting millions of dollars in investment on the premise that something better will come along?

The best way to go in the short term is to build solar thermal power sites alongside existing coal power stations. Note that solar thermal only produces electricity during the day. A final solution will undoubtedly be tidal generation because the moon continues to circle the earth making oceans rise and fall day after day.
Environment by Ty Buchanan
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Society by Ty Buchanan
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Investment in Clean Energy Production Predicted to Rise

It is predicted that the use of solar and wind power will rapidly increase as costs falls. There has been an improvement in the efficiency of wind turbines. Solar panels also put out more power at a lower cost.

Australians have strongly adopted solar power while governments offer high payments for electricity going back into the system. Making an end date of 2026 of such overpayment was a silly idea. It is too far ahead for future governments to guarantee this "lopsided" subsidy that only helps the wealthy. The financial burden has been pushed onto the elderly.

Solar power has hidden costs. Power surges burn out televisions and computers. New ones must be purchased. Many consumers are saying someone has to fix this. Considering solar power generation will fluctuate throughout the day with this is near impossible.

Frank Calabria, CEO of Origin Energy, favors the elimination of all subsidies on clean energy. This indicates a probable back down considering Origin is the largest investor in wind farms. Coal remains the cheapest form of power production in Australia. This economic advantage will continue. Whether new calls for nuclear power are supported is unknown are present.
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Conservation
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Power Generation Via Hydrogen Is Not Taking Off

It is amazing how people will see something new, then run with it to the extreme saying this will change the world. This is true for virtually all non-fossil energy producing systems, but all of them have drawbacks and none have revolutionized the power sector. The two major problems have been high cost and non constant energy production during the 24 hour period.

Scientists have worked on hydrogen systems for decades and success seems very distant. It is not being accepted for widespread use. Actually, hydrogen is a "byproduct" of energy production. When electricity is generated by any method the excess not used at a point in time is passed through water. It splits into oxygen and hydrogen via electrolysis with the fuel stored to be used in the future. When hydrogen is recombined with oxygen, electricity is generate. Heat from the process can also be used directly for heating purposes.

As with other environmentally friendly electricity producing methods time will tell if hydrogen is accepted for general use. Perhaps hydrogen can be made in significant quantities from solar and wind generation. It could potentially make for a hybrid system producing electricity 24 hours a day. Until now, governments have been the main source of funding for hydrogen experiments. Apparently, the private sector sees little future in it. For non-fossil energy systems to flourish it is necessary for the community to work together. Unfortunately, individualism is the norm. Perhaps this is why there is very little progress.

New Solar Power Station in Western Australia

Australia goes its own way in lower carbon power generation by opening a solar-diesel power station, the world's first, in Western Australia. Solar panels track the sun during the day. The station is built in a location that holds the record for the most days of maximum temperature. Use of the solar panels will lessen greenhouse gas emissions by 1119 tonnes a year.

the local Aboriginal community is fully supportive of the power plant in the Pilbara. Aboriginals named it Pippunyah, the name of the river nearby. Funding came from the Federal Government in its renewable remote power generation program via the Office of Energy in Western Australia.

It is unfortunate that solar power generation had to be combined with fossil fuel generation. Even getting natural gas there would have been better than diesel. It seems there is no perfect solution to the pollution problem. New systems only seem to meet requirements half way.
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Energy
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An Attempt to Get Survivors to Another Planet Is Futile

Australian astronomers are searching for planets in other solar system that could sustain human life. Dr Charley Linweaver says Mankind is reaching the beginning of the end. It's time to look for a way out at least for a small group of people.  The number of planets identified orbiting other suns now exceeds 750. Though a few of these could be like the Earth, exact information is lacking.

The objective of getting people to such a distant destination is way "off the planet" at present. We do not have the technology to get people in orbit around other planets in our own solar system, let alone reaching a far away planet and landing safely.

Finding an identical planet to Earth is just not possible. This planet is a freak in regard to the universe. Most planets do not have life because they are regularly hit by asteroids and even other planets. Sending probes to  a possible twin planet would be a waste of time. It would literally take a lifetime to get a message back.
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Science