Category Archives: Alternative Energy

Alternative energy resources. Solar, wind, wave power. Renewable energies.

New US/EU Poll Measures Attitudes toward Wind Farms, Biofuels, and Nuclear Power

Harris Interactive, one of the world’s top custom market research firms, in conjunction with the Financial Times, conducted a poll in the United States and in five of Europe’s largest countries in an effort to gauge attitudes toward investment in renewable energy and nuclear power. Over 6,000 people were polled from various backgrounds. The poll ascertained that while a large majority supports renewable energy sources like wind and solar power, public opinion has wavered on the issue of nuclear power.

The poll found that in France, 77% of respondents favored building more wind farms, while the numbers were as high as 90% in Spain and 87% in the United States. However, when asked about nuclear power, attitudes were mixed in the United States and Britain, whereas in Spain, France, and Italy a majority clearly opposed the expansion of nuclear power.

When respondents were asked, “How much do you favor or oppose the building of new nuclear power plants?” opinions were mixed, although a small minority in every country polled were “strongly in favor.” Results were similar when asked, “How much do you favor or oppose a financial subsidy by the government for the development of nuclear power?” 58% in the U.S. either strongly opposed or opposed more than favored nuclear subsidies, while on the other side of the spectrum numbers in Germany were much higher, hovering around 80%.  The poll thus effectively demonstrated that attitudes toward nuclear power are lukewarm at best, if not decidedly against.

The poll also found that while many are in favor of renewable energy options, few are willing to pay much more for alternative energy sources. In all countries polled, most respondents said that they would either pay no more or up to 5% more, whereas a small minority said that they would be willing to pay too much more–in both Spain and France, less than 20% said they would pay over 5% for renewable energy, while in the United States and Italy, numbers hovered around 30%.

Harris Interactive conducted an almost identical poll two years ago, and while the results for most questions were largely the same, the popularity of investing in nuclear power has decreased, particularly in Germany and Italy.

If the Harris Interactive poll is any indication of attitudes toward renewable energy globally, then it is clear that public backing of more nuclear plants is faltering, and more and more people are placing greater faith in new technologies like wind and biofuel energy.

The data tables from the poll can be found in PDF format on Harris Interactive’s website.

This guest post is contributed by Angelita Williams, who writes on the topics of online college courses.  She welcomes your comments at her email Id: angelita.williams7@gmail.com

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Government pulls plug on PBMR

Jul 18, 2010 | By PREGA GOVENDER


The government has pulled the plug on its ambitious nuclear energy programme after pumping more than R9-billion into it over more than 11 years. There have been suggestions that this figure is far higher than declared and allegations that PBMR funding resulted in various slush funds. There are also suggestions that the PBMR project may continue to be funded in the US and may yet try to rear its ugly head in South Africa. What we want to know is what will happen with the PBMR “test” fuel factory established at Pelindaba and why were no environmental reports made public from the several years of pebbles experimentation that transpired in the hills of Hartbeespoortdam? And what ever became of the nuclear pebbles produced at Pelindaba that were shipped overseas for testing? – Comment from CANE


The Pebble Bed Modular Reactor Company (PBMR), which was established in 1999 to build small nuclear power reactors, faces imminent closure.

In a letter dated July 5, Public Enterprises Minister Barbara Hogan told the National Union of Mineworkers (NUM): “The minister of finance has clearly stated that there will be no further funding for the company, and I would like to reiterate that this position has not changed.

“It is clear that the remainder of the cash on hand is to be utilised solely for the winding down of the company as well as the preservation of the intellectual property.”

One objective was to design, license and build a prototype nuclear reactor plant, which, if successful, would have paved the way for building small power plants to help meet SA’s needs.

The company operates as an independent entity governed by an agreement between founding investors Eskom, the Industrial Development Corporation (IDC) and US nuclear giant Westinghouse.

It has spent R5-billion on projects since 1994, including R2.7-billion on a demonstration power plant, which was to have been built at the Western Cape’s Koeberg nuclear power station, but was later scrapped. In the process, the company wasted R268-million on the manufacture of a major component of the demonstration power plant, a 2000-ton reactor pressure vessel.

The vessel, which is due to leave the Spanish port of Santander next Sunday, will be stored at Saldanha Bay for R10000 a month as the company can no longer afford the R1.4-million it will cost to transport it to Pretoria.

Business Times was told that the company decided to have the component shipped to SA as it would have been liable for R34-million in VAT had it remained in Spain. Nuclear experts were unanimous this week that the vessel would have to be scrapped as the PBMR company changed the original design of the demonstration power plant last year to 200MW from 400MW. The vessel can function in a 400MW power plant only.

Although the part is unfinished, as the contract for its construction was cancelled last year, PBMR was forced to pay the Spanish builder R268-million for the incomplete product. The original contract price was R317-million.

Payments to companies that made parts for the demonstration power plant include:

  • R503.2-million to Japan’s Mitsubishi Heavy Industries for a helium turbine for the power plant;
  • R256.8-million to German company SGL Carbon for manufacturing carbon reflector blocks; and
  • R256-million for graphite for the demonstration power plant.

The company also spent millions of rands manufacturing coated uranium oxide particles encapsulated in graphite fuel spheres, which were sent to Russia for testing.

However, staff say the financial cut-off did not stop the company recently giving golden handshakes of R1.8-million each to some of its general managers.

Last year, the company’s 11 executives were paid a combined R18-million in salaries and other benefits. Other big payments since 1994 include:

  • R2-billion to mostly overseas consultants;
  • R115.9-million for building rental;
  • R707.9-million for the construction of a pilot fuel plant; and
  • R172-million for overheads.

Hogan recently turned down a rescue plan proposed by the NUM that included a request for a R262-million government bail-out until March next year. In a detailed submission to Hogan, the union called on the auditor-general’s office to conduct a forensic investigation into the company’s financial affairs.

The union also called on the government to suspend the company’s board and executive officers. It said some engineers and scientists were “inappropriately qualified” for nuclear reactor engineering applications.

“The actions of certain individuals can be treated as sabotage for changing the design almost every second year. It seemed as if they did not want to see the reactor built.”

Union general secretary Frans Baleni deplored the company’s “wasteful expenditure. The closure is marked by serious allegations of corruption and unethical conduct. We would be pleased if it can be investigated thoroughly,” he said.

A nuclear expert employed at PBMR blamed the board and executives for the company’s failure. “The technology in terms of electricity production was good, but the only problem was that it was not well managed. Nothing was ever achieved by the company. It was a waste of taxpayers’ money.”

Eskom said in a short statement that it was a minority investor, and referred queries to PBMR.

PBMR’s acting chief executive Alex Tsela declined to comment, referring all questions to the company’s corporate communications department, which could not be reached for comment.

The chairman, Alistair Ruiters, could not be reached for comment either.

  • - govenderp@sundaytimes.co.za

Source: http://www.timeslive.co.za/business/article555632.ece/Government-pulls-plug-on-PBMR

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Wind Energy For The Layman

You don’t have to become a nerd to understand how wind energy works

Wind is caused by the uneven heating of the Earth by the sun and the fact that temperatures will always be trying to reach an equilibrium (heat is always moving to a cooler area). With the rising price of energy and the destruction of the environment from non-renewable fuels, it is starting to be equitable to harvest this renewable resource.

The advantages of wind energy are that it’s virtually free (in case you purchase the equipment) and there is no pollution. The disadvantages include the fact it’s not a continuing source (the velocity varies and many times it is insufficient to produce electricity) and it typically requires about one acre of land.

How Wind Energy Works

The amount of power that is available varies by wind speed. The amount available is named it’s power density which is measured in watts per square meter. For that reason, the U.S. Department of Energy has separated wind energy into classes from 1 to 7. The typical wind speed for class 1 is 9.8 mph or less while the average for a class 7 is 21.1 or more. For effective power production, class 2 winds (11.5 mph average speed) are usually required.

Generally, wind speeds increase as you get higher above the Earth. For that reason, the standard wind turbine comes with a tower at least 30 feet above obstructions. That there are two basic different kinds of towers useful for residential wind power systems (free standing and guyed). Free standing towers are self supporting and are usually heavier meaning they take special equipment (cranes) to place them. Guyed towers are supported on a concrete base and anchored by wires for support. They typically are not as heavy and most manufacturer’s produce tilt down models which can be easily raised and lowered for maintenance.

The kinetic (moving energy) from the winds is harnessed by a device called a turbine. This turbine includes airfoils (blades) that capture the energy of the wind and use it to turn the shaft of an alternator (like you have on a car only bigger).

That there are two basic types of blades (drag style and lifting style). We all have seen pictures of traditional windmills with the large flat blades which are a good example of the drag style of airfoil. Lifting style blades are twisted instead of flat and resemble the propellor of a small airplane.

A turbine is classified as to whether it is designed to be installed with the rotor in a vertical or horizontal position and whether the wind strikes the blades or the tower first. A vertical turbine typically requires less land for it’s installation and is a much better option for the more urban areas around the globe. An upwind turbine is designed for the wind to impact the airfoils before it does the tower.

These units normally have a tail on the turbine which is needed to maintain the unit pointed into the wind. A downwind turbine doesn’t need a tail as the wind acting on the blades tends to keep it oriented properly.

These turbine systems would be damaged if they were to be allowed to turn at excessive speeds. Therefore, units should have automatic over-speed governing systems. Some systems use electrical braking systems while some use mechanical type brakes.

The output electricity from the alternator is sent to a controller which conditions it for use in the home. Using residential wind power systems requires the home to either remain tied to the utility grid or store electricity in a battery for use when the wind will not blow sufficiently.

When the home is linked with the grid, the surplus electricity that is created by the residential wind power system can be sold to the utility company in order to reduce or even eliminate your utility bill. During times with not enough wind, the home is supplied power from the utility company.

The Cost of Wind Energy

Small residential wind power turbines can be an attractive alternative, or addition, to those people needing more than 100-200 watts of power for their home, business, or remote facility. Unlike PV’s, which remain at basically a similar cost per watt independent of array size, wind generators get more affordable with increasing system size. At the 50 watt size level, for instance, a small residential power wind generator would cost about $8.00/watt when compared with approximately $6.00/watt for a Photo voltaic module.

That’s why, everything being equal, Photo voltaic is more affordable for very small loads. As the system size gets larger, however, this “rule-of-thumb” reverses itself.

At 300 watts the wind turbine costs are down to $2.50/watt, while the PV costs are still at $6.00/watt. For a 1,500 watt wind system the cost is down to $2.00/watt and at 10,000 watts the cost of a wind generator (excluding electronics) is down to $1.50/watt.

About the Author – Mary Jones writes for the residential wind power systems web log, her personal hobby blog focused entirely on ideas to reduce Carbon dioxide and lower energy costs using alternative power sources.

If you wish to read my complete Bio

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What can I do about preventing a nuclear future?

STOP THE MEDIA FROM LYING !

More and more mainstream media are ignoring the health and economic risk – let alone the legacy – involved with nuclear power and appear to be backing an  already well-oiled propaganda machine of the nuclear industry, hell-bent on foisting dangerous technology on this country. Their published views DO NOT reflect the vast and irrefutable evidence against this heinous form of electricity generation. Here are two letters recently written to the Business Day newspaper to set the record straight which we trust the paper bothered to publish.

10 June 2010

The Editor

Business Day

Dear Sir

Two undated articles from your newspaper were recently forwarded to me. One was an otherwise reasonable article by Siseko Njobeni on the state of play in the IRP2 process, but which had a disturbing caption attached to its photograph: “There is little debate about the benefits of nuclear power … as the least carbon-generating  technology.” Apart from the constant privileging of nuclear power over other and cheaper viable technologies for electricity production that this prominent photograph suggests (and belied in the accompanying article), the very idea of “no debate” is reminiscent of Margaret Thatcher’s TINA: “There is No Alternative” – a Goebbelsian mantra, if ever there was one.

If your reporters had attended the recent Environmental Impact Assessments public meetings for the ill-starred “Nuclear-1”, they would have experienced an extremely robust and entirely hostile debate at all three sites. Indeed – with the rebirth of Earthlife Africa and the Koeberg Alert Alliance in Cape Town; the fierce resistance of the Save Bantamsklip campaign in the Overstrand; and the Thyspunt Alliance in the Kouga Municipality – one can honestly say that the Coalition Against Nuclear Energy (CANE) has come of age. It also currently enjoys the active support from the National Union of Mineworkers, the faith-based SAFCEI, and a clear mandate from the Civil Society Energy Caucus to represent its anti-nuclear interests to the IPR2 process.

More objectionable, however, both in its cynical, “embedded” tone and its uncritical content, is Sarah Wild’s “Science & Technology” column on the subject. Quoting (without making it clear) standard nuclear industry propaganda, Wild writes that “fewer than 50 people” died and guesstimates the overall cancers at 4 000 from the disaster at Chernobyl. According to the Russian newspaper Pravda of 16 December 2002, however –

A total area of 50 000 square kilometres covering 12 regions was contaminated in that awful tragedy. Over three million people, including about one million children are suffering [in 2002] from diseases of the respiratory airways, thyroid gland, etc., which rates are higher in the regions contaminated after the tragedy as compared with the whole of Ukraine. About 600 000 people participated in the clean-up … of Chernobyl: 200 000 of them were exposed to an enhanced radiation dose. These people will now need special medical aid and supervision for the rest of their lives.

Within the first ten years after the Chernobyl tragedy, about 168 000 people (out of the total number of 3.2 million … victims) died. It was later discovered that 4 300 died [immediately] as a result of the tragic consequences, about 3 000 of [these] fatalities were those who participated the clean-up. Those victims of the tragedy who remained alive registered a worsening of their health condition.

While the red herrings may be trotted out about for cars and jets and coal stations and farting cattle, the scientific facts are that the two principle by-products of nuclear fission – Cesium-137 and Strontium-90 – both have a half-life close to thirty years and therefore tend to accumulate in the environment over many decades. Even the otherwise extremely reluctant Air Specialist Study in the EIA for Nuclear-1 admits as much:

The methodology described in IAEA Safety Report No. 19 (IAEA 2001) was adopted in the estimation of inhalation and immersion dose….. The inventory of long-lived radionuclides builds up in the environment, with the result that exposures may increase as the discharge continues. [emphasis mine]

When I studied Eskom’s own Environmental Science Laboratory reports to the National Nuclear Regulator on emissions and effluents from Koeberg Nuclear Power Station,
the following amount of Strontium-90 was recorded in liquid effluents in Becquerels per year:
1994 =   53 600 000
1995 =      9 560 000
1997 =   15 100 000
2001 =      3 140 000
It follows, therefore, that there is a genuine risk from routine operations of nuclear power stations, and this was borne out in a number of peer-reviewed studies. Writing for Global Research, Ian Fairlie (2008) drew attention to the following:

Last year [2007], researchers at the Medical University of South Carolina in Charleston carried out a meta-analysis of 17 research papers covering 136 nuclear sites in the UK, Canada, France, the US, Germany, Japan and Spain. The incidence of leukaemia in children under 9 living close to the sites showed an increase of 14 to 21 per cent, while death rates from the disease were raised by 5 to 24 per cent, depending on their proximity to the nuclear facilities (European Journal of Cancer Care, vol 16, p 355).

This was upstaged by the yet more surprising KiKK studies (a German acronym for Childhood Cancer in the Vicinity of Nuclear Power Plants), whose results were published this year [i.e. in 2008] in the International Journal of Cancer (vol 122, p 721) and the European Journal of Cancer (vol 44, p 275). These found higher incidences of cancers and a stronger association with nuclear installations than all previous reports. The main findings were a 60 per cent increase in solid cancers and a 117 per cent increase in leukaemia among young children living near all 16 large German nuclear facilities between 1980 and 2003. The most striking finding was that those who developed cancer lived closer to nuclear power plants than randomly selected controls. Children living within 5 kilometres of the plants were more than twice as likely to contract cancer as those living further away, a finding that has been accepted by the German government.

I am normally convinced that Business Day conducts proper research in order to better inform its readers of investment potential in one business sector or another. I therefore think it would be equally helpful for the newspaper to engage in a more critical investigation into the dubious merits of electricity production from nuclear power stations before questioning the “viability” of its critics. We may not be financially viable (or even properly functional) as a lobbying group, but at least we do our homework.

Mike Kantey
National Chairman
Coalition Against Nuclear Energy (CANE)
www.cane.org.za
072 628 5131

Endnotes

Ian Fairlie (2008) “Reasonable Doubt: Children living near nuclear facilities face an increased risk of cancer” April 24, 2008 http://globalresearch.ca/index.php?context=va&aid=8785)

A follow-up for your self-confessed “science” writer may be made through examining Chris Busby’s 2009 study: “Very Low Dose Fetal Exposure to Chernobyl Contamination Resulted in Increases in Infant Leukemia in Europe and Raises Questions about Current Radiation Risk Models” in the International Journal of Environmental Research and Public Health, Volume 6. www.mdpi.com/journal/ijerph]
Chris Busby et al (2006): A survey of cancer in the vicinity of Trawsfynydd nuclear power station in north wales Report 2006/3, Green audit Aberystwyth, June

Communities adjacent to nuclear facilities in the U.S. and U.K. have increased rates of leukemia and other childhood cancers (Cragle et al. 1988; Morris and Knorr 1996; Beral et al. 1993; Pobel and Viel 1997; Cardis et al. 2007).

Arjun Makhijani (2008): The Use of Reference Man in Radiation Protection Standards and Guidance with Recommendations for Change, December (Revision 1, April 2009). Institute for Energy and Environmental Research, Takoma Park, Maryland

Kaatsch P, Spix C, Schultze-Rath R, et al. Leukemia in young children living in the vicinity of German nuclear power plants. Int J Cancer. 2008; 1220:721-726
Baker PJ, Hoel DG. Meta-analysis of standardized incidence and mortality rates of childhood leukemia in proximity to nuclear facilities. Eur J Cancer Care. 2007:16:355-363
Laurier D, Jacob S, Bernier MO, et al. Epidemiological studies of leukemia in children and young adults around nuclear facilities: A critical review. Rad Prot Dosim. 2008; 132:182- 190
———————————————-

Sent:     Tuesday, June 08, 2010
To:     busday@bdfm.co.za
Subject: What’s on my plate in a nuclear future?

Dear Editor

What’s on my plate in a nuclear future?

Koeberg emits, by their own admission, ‘permitted levels of radioactive waste’ from their site. This means that radioactive isotopes (such as Cesium-137, Strontium-90 and Iodine-131) become part of the environment in which they are emitted. When we eat the crops, or, the animals that graze on effected vegetation, we take in substances that, are not only carcinogenic to our bodies,  but, will also change the characteristics of our DNA, and, by implication the DNA of future generations. Wind dispersion allows for emissions to be spread over vast areas.

With the government’s planned ‘fleet’ of nuclear power plants to be rolled out in SA, how much of our farming land will be effected?  Which European country will import radioactive fruit, or, wine? Avian flu (a mere virus) decimated sectors of economies in the world. We could face a blanket  ban on all our export produce. So, not only will our health be adversely effected by a nuclear future, but our economy too. If I was a farmer I would definitely be toy toying.

The latter will be nothing compared to a nuclear waste accident…  even if it is  minor.  Consider that every month we transport radio active waste from Koeberg to Vaal Puts in the Karoo for ‘safe storage’. Our road accident rate is high. It is only a matter of time before a transit vehicle, carrying the waste, is involved in an accident. High level waste remains at Koeberg – over 1 million killograms of it.  Why? There is no actual plan for disposal (ps this goes for nuclear waste worldwide). And, as far as procuring material to create nuclear energy is concerned, personally, I will not be applying for a mining position on any uranium mine in the near future… call me crazy if you like. Let us not be duped into thinking that there is anything clean about nuclear energy.

Most countries in the world are actively sourcing renewable energy solutions. Countries with no wind or sun to speak of (incl Germany and Denmark) generate substantial  amounts of electricity via renewable sources. Yet, SA is committing to generating nuclear energy in spite of clean alternatives that will cost less financially.

South Africans have been given one chance in Jhb, to participate in the IRP2 process. This ends 10  June 2010 (one day before kickoff date???). This is unacceptable, particularly since Capetonians sit with the ‘permitted emissions’ in our own backyard. I recently wrote a letter to local (CT) organic producers of diary products… “I know that your products are RBST free, but, are they free of radioactive isotopes”, to which the response has been… ‘this is a valid point, we are looking into it’. What if our food producers cannot supply us with raioactive isotope free produce? National health is already strained and just how many lawsuites can our government afford to take on?

Quite frankly, I find embracing a nuclear future to be just a tad unpalatable.

Your sincerely,

Jemimah Birch

Hout Bay
083 716 1010

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THIS IS URGENT IF YOU WANT A SAY IN SA’S ENERGY PLAN FOR THE NEXT 20 YEARS

Dear Interested and Affected Parties YOUR INVOLVEMENT IS REQUIRED


The Department of Energy has finally issued the invitation for the much touted “broad consultation process” concerning its “IRP2” – basically the electricity / energy plan for this country for the next 20 years – a day BEFORE their deadline. This invitation arrived yesterday but that will not deter us from registering as stakeholders yet again to voice our opposition and reasons for opposition to the proposed inclusion of nuclear in the proposed energy mix for South Africa. But, WE NEED TO ACT QUICKLY.

For those who don’t know much about IRP2, there are web-links to articles on the IRP2 listed below to fill you in. But please ensure you register on the database of stakeholders ASAP for the pattern of recent times has shown that leaving it up to the next person or organisation, results in government turning its back on enlightened views to the detriment of this country’s future.

Over the past number of years we have relentlessly participated in all processes – EIAs, submissions to government or Parliament, presentations to energy regulators and policy makers, public hearings on energy policy etc only to find that pre-determined policies are riding rough-shod over democratic processes. Our petitions to the Speaker for Parliamentary debate over energy mix and nuclear policy have remained unheeded and indeed legislation enabling this lethal energy option has been Gazetted in spite of this. More recently the Energy Minister held a “nuclear stakeholders’” meeting in Cape Town to which she invited only ONE PERSON to represent the growing thousands of people in this country opposed to nuclear expansion while renewable alternative solutions remain the Cinderella option. Needless to say, his objections were dismissed and he was kicked out of the meeting.

You cannot allow the government to continue to be dismissive of whom it consults & recognise as stakeholders. Indeed the entire South African public is the biggest stakeholder!!

YOUR VOICE COUNTS. Please register! Help to drive the message that WE DO NOT WANT NUCLEAR ENERGY IN SOUTH AFRICA!

* * *

Herewith the invitation:

INVITATION TO REGISTER ON THE DATABASE OF THE DEPARTMENT OF ENERGY: IRP2

The Department of Energy hereby calls on all interested parties to register on its database of stakeholders for inclusion in the consultation process for the development of the IRP2 for Electricity 2010.

All interested residents, businesses, groups and sectors are requested to:

1.    Indicate their institution;

2.    Core business;

3.    Area of interest in the IRP;

4.    Preliminary position in their areas of interest; and

5.    Contact person/s and contact details

Interested parties are requested to submit the above-mentioned information to the office of the Director-General by the 20th April 2010. Such information may be faxed, emailed or posted.

Contact Person:

Ms Yolisa Mapekula

Department of Energy

Private Bag X 19

Arcadia

0007

Tel: 012- 444 4063

Fax: 012- 444 4505

Email: yolisa.mapekula@energy.gov.za

_____________________________________________________________________________

Some reading matter on the IRP2 and why your involvement is so important:

Cloud over power plan -Mar 19 2010

http://www.mg.co.za/article/2010-03-19-cloud-over-power-plan

Energy Department to publish IRP2 by June

http://www.engineeringnews.co.za/article/maqubela-2010-02-24

Inter-Ministerial Committee gives nod to IRP2 consultation plan – 31 March 2010

http://www.info.gov.za/speeches/2010/10040110051002.htm

Minister reassures business IRP2 will include broad consultation
April 7, 2010

http://www.busrep.co.za/index.php?fSectionId=552&fArticleId=5419352

Nuclear deal back on track-Mar 05 2010

http://www.mg.co.za/article/2010-03-05-nuclear-deal-back-on-track

SA outlines consultation process for 20-year energy plan

http://www.polity.org.za/print-version/sa-outlines-consultation-process-for-20-year-energy-plan-2010-04-01-1

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