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Windenergie in Nepal

‘Windenergie im Tal des oberen Kali Gandaki

Jeder der schon einmal im Tal des Kali Gandaki nur noch mit äusserster Karaftanstrengung gegen den Wind vorankommen konnte, hat natürlich an den Einsatz von Windrädern gedacht. Denn dieses Tal ist ja prädestiniert, weht doch fast jeden Tag ein heftiger und regelmässiger Wind.

So nimmt es auch nicht Wunder, dass es auch schon einen ersten Versuch gegeben hat. Wer von Kagbeni Richtung Muktinath geht, findet oben auf dem Hügel am Ortsausgang ein kleines verlassenes Häuschen. Hier wurde 1990 mit dänischer Unterstützung ein Windrad installiert und der König kam persönlich mit dem Helikopter angeflogen, um den Startknopf zu drücken.

Doch leider war das Windrad nur für die leichten dänischen Brisen konstruiert und schon nach kurzer Zeit brach bei einem heftigen Sturm ein Flügel ab. Danach hat sich keiner mehr darum gekümmert und später wurde das Windrad abgebaut und nur die Elektroleitungen blieben sinnlos stehen.

In den unteren Dörfern wurde zwischendurch Wasserstrom verwendet, und so wird auch Kagbeni an dieses Stromnetz angeschlossen.

Die Wasserkraft hat natürlich den Vorteil, dass sie sehr regelmäßig zur Verfügung steht, denoch hat natürlich  die Windenergie im Kali Gandaki Tal bis hoch nach Mustang weiter ein ungeheures Potential und könnte leich t die Strommengen liefern, um Brennholz beim kochen zu ersetzten.

 In Marpha wird in einem deutschen Entwicklungshilfeprojekt ein aerodynamischer Saugturm beim Trocknen von Äpfeln und Aprikosen verwendet. Dabei liegen die Fruchtschnitten unter Glas und bei Wind wird die Luft nach oben weggesaugt so dass sie schneller und hygienischer trocknen.

Aktuelle Nutzung: Natürlich wird Windenergie schon lange und auch noch heute zu höheren Zwecken eingestzt, wie man an dieser Gebetsmühle des Klosters Kagbeni unschwer erkennen kann.

Berichte zu Windenergie

Kathmandu post 8.3

Windmills could power nation's remote regions

Post Report

KATHMANDU, March 7 – What is the government to do when it cannot easily expand the power grid transmission lines through the country’s rugged terrain? The long-cherished dream to light up the country’s rural areas may come true, experts say, should the government work towards harnessing the alternative and renewable sources of energy.

One such energy source is wind energy.

Wind powered energy potential is very high in the mountainous northern parts of the country which are unlikely to be connected with the National Power Grid in foreseeable future, energy experts said here today, calling on the government to harness the vast green energy potential.

"It is indeed a very good news that wind energy potential is very high in those areas where the government is finding it difficult to expand the national electricity grid," Professor Dr Kedar Lal Shrestha, Advisor at the Ministry of Science and Technology said. He was referring to the rugged hills and snow-covered highlands of the country where electricity has not as yet reached.

He was speaking at the start of the National Workshop on Wind Energy here Wednesday, jointly organized by Ministry of Science and Technology, Intermediate Technology Development Group (ITDG)-Nepal, and International Center for Integrated Mountain Development (ICIMOD). The two-day workshop is expected to come up with a national wind energy action plan.

The idea, officials say, was envisioned in the Ninth Five Years Plan, which is running in its fourth year currently.

State Minister for Water Resources Benup Raj Prasai opened the meet, which was also addressed by National Planning Commission Chairman Rameshananda Baidya and Secretary at the Ministry of Science and Technology Poshan Nath Nepal.

Though endowed with a vast hydropower generation potential, hardly 15 percent of the country’s population of over 22 million—most of them living in urban areas—have access to electricity. Experts say immediate answers to the country’s remaining power-hungry populace are such alternative and renewable sources of energy as the wind energy, micro- mini- and picco-hydro plants and geo-thermal energy.

Dr Shrestha’s comments followed a presentation on wind resources in Nepal by Saraju K Baidya, a meteorologist at the Department of Hydrology and Meteorology. According to Baidya, almost all the hilly and mountainous and even some plain areas of the country have wind energy potential of a kind or another.

"Places like Kagbeni and Thakmarpha (Mustang), Annapurna, Kanjironba, Langtang and Khumbu valleys and Parasi in the western Terai are some of the high wind blowing regions of the country where winds blow at the rates of between three to nine meters per second," Baidya said in his recent study report. "This shows that there is a vast potential. And there are other areas which are not yet explored."

He analyzed the wind speed on the basis of meteorological data obtained from the 48 wind stations owned by the Department of Hydrology and Meteorology.

In Sri Lanka, according to Sunit Fernando of ITDG-Sri Lanka who address the gathering earlier, farmers have been generating up to 200 watts of electricity from a small windmill facing a speed of nine meter per second. Drop in speed of the wind also drops the power generation.

Wind energy technology was introduced in the southern neighbor in the 1990s, two decades after the need to promote the alternative and renewable sources of energy was underlined following the world wide oil crisis of 1970, according to him.

"Now, the technology has already gained popularity amongst Sri Lanka’s 40 percent powerless people, who do not have direct access to electricity," he said.

In Nepal, experts say, the potential is yet untapped barring one or two instances of failed wind energy mill projects like that at Kagbeni.

 

Aus einem Bericht von http://www.travel-library.com/rtw/donath/10.html

Just past Khingar, the wind picks up considerably. All of the villages in the north Kali Gandaki Valley, including Kagbeni, are plagued by strong winds. An attempt was made at installing a wind-power project, but we find it abandoned. Later, we learn that this generator was established in 1990 with Danish help. The king visited Kagbeni for the switch-on of the power. Kagbeni had electricity for one month and then the main wind fan broke. It's been left neglected ever since.