Stadtwerke Munchen and RWE Innogy realise a parabolic trough power plant in Spain in conjunction with MAN Ferrostaal, RheinEnergie and Solar Millenniu

The power plant was developed by Erlangen-based Solar Millennium AG. Stadtwerke München has a 48.9% share in the project company Marquesado Solar S.L. RWE Innogy and RheinEnergie jointly hold 25.1% of the shares in this project via an investment holding company (RWE Innogy: 51%, RheinEnergie: 49%). The remaining 26% of the project company continue to be owned by an investment holding company of MAN Ferrostaal and Solar Millennium. Construction of the power plant has already commenced. The solar thermal power plant is expected to start operation in 2011 with an output of approximately 50 megawatts, and will be jointly operated by the project partners. * One of the largest solar thermal power plants in the world* Planned commissioning scheduled for 2011* Project development and solar technology from Solar Millennium GroupDr. Kurt Mühlhäuser, Chairman of the Executive Board of Stadtwerke München (SWM) emphasised: “We have an ambitious objective: Munich will be the first city in Germany where all private households can be supplied with electricity generated from renewable sources in SWM’s own power plants. We currently use hydroelectric power, wind energy, biomass and photovoltaic cells. With our investment in the Andasol 3 project, we have chosen another ground-breaking technology. The parabolic trough power plant in the south of Spain will bring us a great deal closer to our objective.”Prof. Fritz Vahrenholt, Chairman of the Executive Board of RWE Innogy said: “Parabolic trough technology sets new benchmarks for solar electricity generation. It can be deployed on a large scale and generates electricity in a reliable and power grid-friendly way even after sunset thanks to a huge molten salt thermal storage system. This allows the plant to generate electricity for almost twice the amount of hours as a solar power plant without the storage system. For us, this investment is therefore a further important step toward a sustainable and safe method of providing energy on the basis of renewable energies.”Christian Beltle, Chairman of the Executive Board of Solar Millennium said: “As a result of our early entry into the market, we have extensive expertise in the development and realisation of solar thermal power plants. We have supplied the solar technology for the first parabolic trough power plants in both Spain and Egypt. The fact that we are now joining forces with four leading German companies is a wonderful acknowledgement of our work to date.”Dr. Dieter Steinkamp, Chairman of the Executive Board of RheinEnergie said: “In the Rhine region, we have a responsibility towards around 2.5 million people. It is intended in the future that the basis for our own energy generation should increasingly come from renewable energy sources alongside the environmentally friendly combined heat and power generation. Just a few days ago we took over 19 wind farms across the country with an output of over 100 MW. With Andasol 3, we are now focusing on the future technology of solar energy.”Dr. Rainer Kistner, Head of Solar Power of MAN Ferrostaal, is excited about the new partnership for Andasol 3. “Solar thermal power plants have enormous future potential. They are environmentally friendly, reliable and predictable, since they are independent of fluctuating oil and gas prices. They ensure long-term security of energy supplies which, for us, is the most important argument to be involved in the project as an investor and as plant constructor. As a constructor of power plants and in conjunction with our technology partner Solar Millennium, we have created the best conditions for making the project a success.”With an electrical output of approximately 50 megawatts, Andasol 3 is the third solar thermal power plant that has been installed in the Spanish province of Granada by Solar Millennium. The neighbouring projects Andasol 1 and Andasol 2, which each have an electrical output of around 50 megawatts, are already connected to the grid or in the test phase. Andasol 1 was officially inaugurated a few days ago. The power plants, which are almost identical in their construction, will have a collector surface area of over 1.5 million square metres – equal to the surface area of approximately 210 football fields – thus making it the largest solar energy site in Europe. The expected gross energy production for each power plant is approximately 170 gigawatt hours a year. This means the power plants can collectively supply electricity to around half a million people each year and avoid the production of approximately 450,000 tonnes of carbon dioxide .Upon completion of the Andasol 3 power plant, around 210,000 parabolic mirrors will capture the sunlight. These gigantic, arched mirrors concentrate the sun’s rays. The heat generated by doing this is transferred to a heat transfer fluid. Trough heat exchanging devices the thermal energy is transferred the thermal energy to a water/steam circuit. As in a conventional power station, this steam drives a turbine. The generator, which is attached to it, generates electricity. By means of a thermal storage system, electricity can be provided in a planned way. This thermal storage system comprises 28,500 tonnes of a special salt mixture; its capacity can run the turbine for 7.5 hours at full load. Andasol 3 is therefore able to reliably generate electricity even after the sun has set.The construction of Andasol 3 is already at an advanced stage: the early works has been completed as far as possible. The foundations for the collector mountings in the solar park are currently being cast. The assembly of the collectors and their subsequent incorporation into the solar park will begin shortly. The construction of the Andasol 3 power plant is the responsibility of a joint venture company involving Solar Millennium and MAN Ferrostaal, as well as the Spanish company Duro Felguera S.A. Solar Millennium’s subsidiary, Flagsol, is providing the technology for the solar park – just as it did for the sister projects Andasol 1 and 2.###

Sunshine warnings over skin cancer risk 'overstated'

It's not sunlight but moles that have the highest role in increasing the risk of skin cancer, say scientists who have claimed that the perils of sunbathing are grossly 'overstated'.
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Scientists have said that sunshine is not the main cause of melanoma, but the number of moles on your skin is the most important factor in the risk of getting this dangerous form of skin cancer.The findings have re-ignited the debate over whether official health warnings about avoiding the sun are overstated. The scientists involved in the study maintain that sunshine causes only a small proportion of melanoma cases, but in their opinion health warnings would be more useful if they focused on people who have more than 100 moles, and taught them to check regularly the moles for changes in shape, size or colour. However, melanoma can be treated, for instance by the early removal of a suspicious mole, but it is the most serious type of skin cancer, as it can spread to other organs in the body. The cancer can start in an existing mole or on normal-looking skin, and can occur in people who have no moles but have fair skin and freckles. In a recent study, researchers from Queensland, Australia, Montreal, Canada and Philadelphia, America, led by King's College London, identified two genes, which dictate how many moles someone will have, and their risk of getting skin cancer. 'The number of moles you have is one of the strongest risk factors for melanoma - stronger than sunshine. This paper shows that we found two important genes that control the number of moles you have. Those genes also give you an extra risk of melanoma,' Times Online quoted Tim Spector, professor of genetic epidemiology at King's College London, as saying.Dr Veronique Bataille, a researcher at King's College, London, and dermatologist at West Hertfordshire NHS Trust, argues that we have overemphasised the risk of sun exposure. She said: 'Let's keep sunshine in the picture because it does make you age and causes you wrinkles - we have never denied that. But let's move away from scaring people by saying they are going to die because they go in the sun.'

Researchers figure out why obesity triggers diabetes

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A team led by Matthew Watt, associate professor at Monash University, discovered that fat cells release a protein called PEDF (pigment epithelium-derived factor) which triggers a chain of events and interactions that lead to development of Type-2 (T-2) diabetes. 'When PEDF is released into the bloodstream, it causes the muscle and liver to become desensitised to insulin. The pancreas then produces more insulin to counteract these negative effects,' said Watt. 'This insulin release causes the pancreas to become overworked, eventually slowing or stopping insulin release from the pancreas leading to T-2 diabetes.' 'It appears that the more fat tissue a person has the less sensitive they become to insulin. Therefore a greater amount of insulin is required to maintain the body's regulation of blood-glucose,' Watt added. 'Our research was able to show that increasing PEDF not only causes T-2 diabetes like complications but that blocking PEDF reverses these effects. The body again returned to being insulin-sensitive and therefore did not need excess insulin to remain regulated.' Watt said identifying the link is a significant breakthrough in explaining the reasons why obesity triggers the onset of T-2 Diabetes, said a Monash University release. 'Until now scientists knew there was a very clear pattern and had strong suspicions that a link existed between the two conditions, but our understanding of the chain of events that are caused by the release of PEDF shows a link,' Watt said. 'We already know that weight-loss generally improves the management of blood glucose levels in diabetes patients. We can begin to design new drugs to improve the treatment of Type-2 diabetes,' Watt said.

Why smoking increases heart disease, stroke risk

Researchers
at Charles Drew University of Medicine and Science in Los Angeles and Western University of Health Sciences in Pomona, California have discovered why smoking increases the risk of heart disease and stroke.
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They have found that nicotine promotes prediabetes, also known as insulin resistance, in smokers, which is a risk factor for heart disease and stroke.The study's lead author, Theodore Friedman, chief of the endocrinology division at Charles Drew University, suggests previous theory that nicotine and cigarette smoking induce high levels of the stress hormone cortisol was correct.Friedman said: 'As cortisol excess is known to induce insulin resistance, it has been suggested that glucocorticoids, such as cortisol, are the missing [causative] link between cigarette smoking and insulin resistance'.Experts found that nicotine induced prediabetes, a known risk factor for cardiovascular disease.The study authors were also able to undo some harmful effects of nicotine in mice to some extent by treating them with the nicotine antagonist mecamylamine, a drug that blunts the action of nicotine. Friedman said: 'Our results suggest that reducing tissue glucocorticoid levels or decreasing insulin resistance may reduce the heart disease seen in smokers. We anticipate that in the future there will be drugs to specifically block the effect of nicotine on glucocorticoids and insulin resistance.'

Easy strength training exercise may help ease pain of tennis elbow

A simple exercise to strengthen the wrist may help alleviate the pain of tennis elbow, according to a new study.
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The exercise involves using an inexpensive rubber bar to perform isolated eccentric wrist extensor strengthening to treat the painful condition in the elbow or forearm that affects 3 percent of the general population, not just those who play tennis. 'Our study illustrated that a novel exercise, using an inexpensive rubber bar, may provide a practical and effective means of adding isolated wrist strengthening exercises to a treatment plan,' said lead author Timothy F. Tyler, PT, ATC, Clinical Research Associate, of the Nicholas Institute of Sports Medicine and Athletic Trauma in New York City. The study randomized 21 patients with tennis elbow into two groups. Both received the wrist extensor stretching, ultrasound, cross-friction massage, heat and ice for treatment. The eccentric training group performed isolated eccentric wrist extensor strengthening using the rubber bar (Flexbar, Akron OH) while the standard treatment group performed isotonic wrist strengthening exercises. Three sets of 15 repetitions were performed daily as part of a home program with intensity increased progressively during the treatment period. A variety of pain and movement scales were utilized to determine progress. Patients using the rubber bar had vastly better results on all scales, especially related to strength. In fact, given the consistently poor outcomes for patients in the standard treatment group, it was deemed appropriate to terminate the randomization with 21 of the intended 30 patients having already completed the study.'Compared to other treatments for tennis elbow such as cortisone injections or topical nitric oxide which require direct medical supervision and often side effects, this treatment is not only cost effective but dosage is not limited by the patient having to come to a clinic,' said Tyler.

Global warming may increase dispersal of flora in Northern forests

new research has indicated that an increase in temperature of only a couple of degrees may increase the dispersal of plants in Northern forests and the spread of plant species into forest clearings after felling or forest fires.The research, in the impact of global warming on seed and pollen dispersal, was led by University of Helsinki researcher Anna Kuparinen. The goal was to learn whether global warming would accelerate the dispersal of plant populations in forests. The research group utilized the micrometeorological data gathered over a decade at the Hyytiälä Forestry Field Station. Seed and pollen dispersal profoundly affects the dynamics and genetic variation of plant populations. Spreading into more favourable areas will help them survive in the warming climate. Wind conditions play a key role, as turbulent vertical streams, in particular, spread seeds very efficiently, even over long distances. The researchers also discovered that a temperature that is only three degrees Celsius warmer increased the dispersal of seeds and the speed at which populations spread throughout the growth season. Particularly for those plants that have light seeds, the annual spreading speed increased dramatically, by approximately 30 meters. On the basis of these results, it seems that global warming accelerates the spread of plants, but it will not alone be sufficient to help plant populations to relocate to new vegetation zones. However, on a more local level, global warming may have a significant impact, as original and newly introduced species spread faster from one place to another and take over new patches of habitat.

Air travel and driving costs to soar under Labour plan to curb global warming

The cost of air travel and driving is set to soar to pay for the government’s plans to curb global warming due to be unveiled this week.
Energy and Climate Change Secretary Ed Miliband warned of rising fuel prices as he outlined Labour’s bid to move Britain on to a low carbon economy.
He said people will have to enact ‘big changes’ in their lifestyle.
Labour is also planning to turn the screws on those who refuse to cooperate with the green push
Householders who refuse to take part in energy saving schemes could face higher council tax rates or the threat of higher stamp duty when they sell up.
Mr Miliband will unveil plans to boost renewable energy on Wednesday, which will see householders offered green mortgages to install solar panels and other energy saving devices.
Ministers will also make it easier for those with energy generating devices at home to sell electricity back to the national grid.
Mr Miliband disputed claims that rising fuel costs will add £230 a year to the average household fuel bills.
But he warned voters to prepare for a painful transition from polluting energy sources like coal fired power stations as Britain tried to hit legally binding targets to reduce carbon emissions by 34 per cent by 2020 and by 80 per cent by 2050.
‘I think there are upward pressures on energy prices whatever route we go down,’ he said. ‘I think that the price of flying will go up over time,’ he said.
Government estimates of the cost to consumers will be published on Wednesday.
Mr Miliband said the government would bring in more renewables like wind power, new nuclear power stations and clean fossil fuel energy through carbon capture and storage.


The government will spend £100 billion on renewable sources by 2020, including 7,000 wind turbines.
‘It does mean big changes in people's lives,’ he said. ‘That does mean some costs for transition. My job is to counter those effects as much as I possibly can, helping people with energy efficiency and having tough regulation.’
He insisted that failure to act would be even more costly as climate change produced more extreme weather conditions - from floods to heat waves.
‘We will have a lot more of those extremes of weather and that has got big human costs in Britain,’ he said. ‘It has also got massive financial costs as well, far outweighing any costs of making the transition.’
The green mortgage scheme will enable householders to take out low-interest loans to pay for double-glazing, loft insulation and heat pumps to extract energy from underground.
And under controversial plans, ministers may also relax planning rules, which could see wind turbines on roofs sprouting even in conservation areas and on listed buildings.
Shadow Secretary of State for Energy and Climate Change Greg Clark accused Mr Miliband of stealing ideas from the Tories.
He said: ‘Most of these announcements are taken directly from Conservative proposals launched by David Cameron in the past year.
‘Last year we set out plans for carbon capture projects, and our Low Carbon Economy green paper contained plans for a smart grid and an ambitious home energy efficiency scheme – all things it is speculated the Government is about to announce.
‘With Britain facing an energy crunch in the next ten years and having the third lowest contribution from renewable energy sources it is clear that the last decade has been a scandalously wasted opportunity.'