How a German Village Created an Independent Grid and a Renewable Energy Future
By Laurie Guevara-Stone
Regardless of debate about the success of Germany’s renewables revolution, there is no denying that a small town in the corner of rural eastern Germany, 40 miles south of Berlin, may be one of the best examples of decentralized self-sufficiency.
Feldheim (population: 150), in the cash-strapped state of Brandenburg, was a communist collective farm back when Germany was still divided into East and West. Now, it is a model renewable energy village putting into practice Germany's vision of a renewably powered future.
In 1995, a local entrepreneur paid for Feldheim’s first wind turbine. As farmers started to worry when prices for their milk, potatoes, and beets began to fall and energy prices started to rise, they learned they could earn cash by renting their land to energy companies wanting to install a wind turbine. A local renewable energy company, Energiequelle GmbH, saw the potential as well, and decided to install a wind farm in Feldheim. Forty-three wind turbines with an installed capacity of 74.1 megawatt (MW) soon dotted the Feldheim landscape, providing income to farmers who leased their land to the energy company.
Renewable fervor was catching on, and in 2008 Energiequelle bought a 111-acre former Soviet military site about five miles from Feldheim, cleaned up the toxic military waste and hidden ammunition and constructed a 284-panel solar farm that produces over 2,700 MW hours per year. Its power is fed into the grid at the feed-in-tariff rate.
That same year, the town of Feldheim and Energiequelle established a joint venture, called Feldheim Energie GmbH & Co. The new company built a biogas factory that converts pig manure and unused corn into heat, taking advantage of the community’s 700 pigs and 1,700 acres of arable farmland. The biogas plant is fed from the town’s agricultural cooperative and produces of electricity a year. A 400-kilowatt, wood-chip furnace fueled by the byproduct of forest thinning helps to firm the power from wind and biogas.
By 2009 Feldheim was producing all its own energy with renewable sources. Residents then wanted to take things a step further and free themselves from the large utility company, E.on, which was supplying the grid.
E.on refused to either sell or lease the part of its energy grid that ran through Feldheim. So the people took the matter into their own hands, and decided to build their own. Each of the 150 residents contributed 3,000 Euros (~$4,000 at today’s exchange rates) so that they could build their own smart grid. With help from Energiequelle and financing from the European Union and government subsidies, the smart grid was completed in 2010, making Feldheim then the only town in Germany with its own mini-grid. This allows the locally produced heat and electricity to be fed straight to consumers and gives them control over their electrical prices, which are set at community meetings.
They now pay 31 percent less for electricity and 10 percent less for heating than before. The town consumes less than one percent of the electricity produced annually by its wind turbines and solar panels, selling the rest back to the market. This lowers their electricity bills to around half the national average. The biogas plant not only sells electricity back to the market, but also supplies the entire community with heating, saving over 160,000 liters of heating oil each year. As an added benefit, the plant produces over three million gallons of high-quality fertilizer annually that the agricultural cooperative uses.
Feldheim has also installed a plug-and-pay EV charging station in the town center, and next plans to install a 10-MW battery later this year. The storage will help balance the community microgrid’s generation and load.
There are now more wind turbines than houses in the town. While residents don’t mind the noise or aesthetics of the wind turbines, there has been some opposition from neighboring towns, which didn’t—until recently—directly benefit from the wind farm. “In order to make neighbors feel more at ease with the wind farm, we are offering power at a special rate,” Energiequelle spokesman Werner Frohwitter told Rocky Mountain Institute. “Our aim is to let as many people as possible directly benefit from our turbines, thus encouraging social acceptance for renewable energies.”
All the renewable projects also created jobs. While other villages in the economically depressed state of Brandenburg have roughly a 30 percent unemployment rate, Feldheim virtually erased its unemployment. Most residents work in the biogas plant or maintain the wind and solar farms. And the town, which has not a single museum or restaurant, has seen an influx of visitors. Three thousand people visit the small town of 150 each year. This has prompted the foundation of a new organization, Förderverein des Neuen Energieforums Feldheim (Friends of the New Energies Forum Feldheim), which is converting an old inn into a renewable energy information and training center. The hope is that when the center opens in the fall of 2014 it will bring even more visitors to Feldheim, generating more jobs and income for the villagers.
Feldheim has proven that a high-renewables energy future is possible today. “There have been and are still occurring remarkable changes (in Feldheim),” says Frohwitter. The small town is thriving thanks to its confidence in renewable energy technologies.
Visit EcoWatch’s RENEWABLES page for more related news on this topic.
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Where Does the Deficiency Begin?<p>Nobody knows exactly how much vitamin D a person actually needs. The question of when a deficiency starts is correspondingly controversial. However, vitamin D is becoming increasingly popular.Not only is the pseudo-scientific literature on the "sun vitamin" experiencing an upswing, but the number of published studies has also increased enormously in recent years. For example, in 2019 <a href="https://academic.oup.com/edrv/article/40/4/1109/5126915" target="_blank">a study found that</a> Vitamin D is responsible for keeping the skeleton functional and is associated with cardiovascular diseases, type 2 diabetes and various types of cancer. <br></p>
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Association Versus Intervention Studies<p>Many studies on the vitamin are association or observational studies. "By definition, these studies cannot prove the causal relationship, but only point to mere correlations," said Fassnacht. The physician tries to illustrate this with an example:</p><p>"Imagine two groups of 80-year-olds. One group is spry, active and does sports. If you compare them with another group living in nursing homes, the difference in vitamin D levels will be dramatic. Life expectancy would also be extremely different."</p><p>But to try to explain the difference in fitness by vitamin D status alone is far too simplistic. "Vitamin D levels are a good measure of how sick someone is. But not more," says Fassnacht. </p><p>According to Fassnacht, none of the intervention studies carried out to date -- that specifically examined the effect of vitamin D on various diseases -- has been able to confirm the previous association and laboratory studies or the presumed positive effect of vitamin D.</p>
Further Research Is Needed<p>"If a coronavirus infection is suspected, it is therefore absolutely necessary to check the vitamin D status and quickly correct any possible deficit," said the recommendation of the paper published by the University of Hohenheim.</p><p>"Studies are underway to see whether vitamin D helps in COVID-19 infection, but I personally do not believe that this is really the case," says endocrinologist Fassnacht. Nevertheless, he says it is of course useful to carry out these studies.<br></p><p>"I don't want to rule out that there are actually subgroups of people who benefit from an additional vitamin D dose," he says. After all, this has been proven to be the case with a severe deficit.</p><p>In view of the study situation, Fassnacht does not think much of preventive, nationwide vitamin D substitutes. "My belief that the vitamin helps somewhere is very low. But, of course, I can be wrong."</p>
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