Best marketing for renewable energies
2012-04-05
(Press-News.org) To most of us, electricity is a matter of course. At the push of a button the light turns on and the TV starts. In reality, a tremendous amount of effort lies behind a secure supply of power. Because of the demand fluctuations, specialists must calculate precisely how much power is needed and when. Weekends, for instance, when offices and stores are closed, require less energy than Mondays. And when it is gray and rainy outside, the lights get turned on earlier than on sunny days. More than anyone else, transmission grid operators have to know in time, when electricity from renewable energies is being generated because they have to transport it across Germany, and partly market it by themselve.
Sun and wind power fluctuate sharply
This is why transmission system operators try to forecast, as accurately as they can, how much renewable energy will be stored for the upcoming day. In this respect, the growing volume of solar and wind power is a challenge, because they are subject to strong natural fluctuations. So the stored volume of wind energy at, for example, TenneT TSO, a German transmission grid operator, can fluctuate from just a few hundred megawatts up to about 9,000 MW within a few days. With photovoltaic, these power increments can happen within hours, which is comparable to the difference in performance between one small gas turbine and nine large conventional power plants. For some time now, services have been available that can precalculate the production of green power resulting from the weather. To achieve the best possible prediction, forecasts from multiple suppliers are used. For the respective next day (day ahead), these are summarised into an optimized "Meta-Forecast". Added to these forecasts are predictions for other renewable energies, such as biomass, hydroelectric and geothermal power and landfill gas. The collective result represents the entireprojected volume of green electricity. Now that this amount can be estimated in a timely manner, eco-power can be marketed in advance on the EPEX – the European power exchange.
The Fraunhofer Application Center System Technology AST in Ilmenau, with its new energy management solution, EMS-EDM PROPHET®, shows that these forecasts – and thus, sales on the EPEX – can be improved even more. From a large number of individual forecasts, the software generates an optimized overall projection. The entire computing process consists of roughly 15,000 individual steps – a massive challenge that requires a high degree of automation from the software.
Quarter-hourly forecasting possible
The software can offer even more. Not only can it calculate the power for a day in advance, it can also provide precise forecasting every quarter hour by correcting the day-ahead marketing every 15 minutes, with partial assistance from short-term projections on the spot market. This means that TenneT TSO GmbH is able to respond to shifts in storage volumes with great alacrity. Another advantage: Using the optimized marketing of green energy quotas on the EPEX, revenues from green energy are maximized, and the utilization of balancing energy is minimized. This, in turn, helps to reduce the share of costs from green energy that every consumer has to pay with the electricity bill.
Currently, the program is used for the spot market for photovoltaic, wind, water and geothermal power. The software will soon be able to consider other energy sources, such as biomass. The data from EMS-EDM PROPHET® can also be used for Internet websites. This information is made available to to services such as www.eeg-kwk.net or www.transparency.eex.com. "A flexible software solution is particularly important, considering the framework conditions that are changing at an ever faster pace," explains Dr. Christian Schulz, responsible for the green energy issues in grid management at TenneT TSO GmbH. Thanks to the high degree of automation of EMS-EDM PROPHET®, the user can quickly respond to regulatory changes.
INFORMATION:
END
ELSE PRESS RELEASES FROM THIS DATE:
2012-04-05
Listening to the radio is a favorite German pastime. Every day, more than 60 million people turn their radios on, especially while driving, and studies show that one in two of them are unwilling to give up enjoying radio programs behind the wheel. But in the vehicle of the future, the electric car, listening to the radio is in principle not possible, since electrical interference impedes the reception of radio waves. These disruptions are caused by the frequency converter, which changes electrical energy into mechanical energy so as to control the electric motor's speed ...
2012-04-05
Roam4Less (www.roam4less.com), the leader in roaming solutions via international cell phone & SIM cards, and PokeTALK (www.poketalk.com), a technology innovator in telephony services, have merged companies with the vision to create a global ecosystem. The two entities will be jointly named eMobile Ecosystems.
Two of the most frustrating areas in the industry are traveling and calling overseas. International travelers must deal with outrageous roaming charges and the hassles of keeping track of multiple SIM cards. Plus, if you want to call overseas, the fees are ...
2012-04-05
Cheshire based business, Lords Wines has over a decades worth of experience in supplying the on-trade and independent off-trade with an exciting range of competitively priced wines. However, over recent years the growing demand from businesses wanting to use wines for trade incentives and consumer promotions has led Lords to devise a new scheme to help others grow their businesses.
Business owner, Jonathan Lord described how "With the current economic climate, more and more businesses are realising the importance of incentive schemes in terms of bringing in new ...
2012-04-05
Asthma is a chronic inflammatory and respiratory disease caused by an abnormal reactivity to allergens in the environment. Of the several avenues of exploration that are currently being developed, vaccination appears to be the most promising approach. In a publication soon to appear in the review Human Gene Therapy, the research scientists at Inserm and CNRS ( Institut du thorax, CNRS/Inserm/University of Nantes) reveal an innovatory vaccine against one of the allergens most frequently encountered in asthma patients. After vaccine was directly injected into the muscle ...
2012-04-05
Scientists analysing prehistoric global warming say thawing permafrost released massive amounts of carbon stored in frozen soil of Polar Regions exacerbating climate change through increasing global temperatures and ocean acidification.
Although the amounts of carbon involved in the ancient soil-thaw scenarios was likely much greater than today, the implications of this ground-breaking study are that the long-term future of carbon deposits locked into frozen permafrost of Polar Regions are vulnerable to climate warming caused as humans emit the greenhouse gas carbon dioxide ...
2012-04-05
With over 67,000 registered sites, Moodle is the most popular Learning Management System globally. Moodle HQ is now fully focused on the Moodle 2.x series and ends support for Moodle 1.9 security fixes in June 2012. To ease the concerns of organisations that are not quite ready to upgrade to Moodle 2, Totara Learning Solutions is sponsoring support for serious security issues with Moodle 1.9 until December 2013.
As with any software product, Moodle releases have a specific life cycle for support. From time to time legacy functionality will be discontinued or replaced ...
2012-04-05
A new gene that causes early-onset of Alzheimer's disease has been discovered by the research team of Dominique Campion at the Insert unit 1079 "Genetics of cancer and neuropsychiatric diseases" in Rouen. The research scientists showed that in the families of 5 of 14 patients suffering from the disease, mutations were detected on the gene SORL1. This gene regulates the production of a peptide involved in Alzheimer's disease. The results of this study have been published in the review Molecular Psychiatry issued April 3rd.
Precise genetic mutations have been seen to ...
2012-04-05
Some people quit smoking on the first try while others have to quit repeatedly. Using such mobile technology as hand-held computers and smartphones, a team of researchers from Penn State and the University of Pittsburgh is trying to find out why.
"One thing that really stood out among the relapsers is how their urge to smoke just never dropped, in contrast to those who were successful in quitting for a month -- their urge dropped quickly and systematically -- almost immediately upon quitting," said Stephanie Lanza, scientific director of The Methodology Center at Penn ...
2012-04-05
Novosoft, the developer of award-winning backup software and enterprise resource planning systems, presented an official strategy for resolving data breach issues from the latest Verizon report which regard data backup. The strategy is based upon applying the best practices for different versions of Handy Backup, the backup software, depending of a company size and IT infrastructure. The backup software strategy whitepaper is available by request.
"The annual report Verizon on global data breaches is a must-read for any company having more than zero computers. The ...
2012-04-05
AMHERST, Mass. – In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a series of extreme warming events about 55 million years ago, the Paleocene-Eocene Thermal Maximum (PETM), and a sequence of similar, smaller warming events afterward.
"The standard hypothesis has been that the source of carbon was in the ocean, in the form of frozen methane gas in ocean-floor sediments," DeConto says. "We are instead ascribing the ...
LAST 30 PRESS RELEASES:
[Press-News.org] Best marketing for renewable energies
