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Renewable Energy: Wind,0,2421278.story

The wind-energy industry is now more focused on the “sometimes bewildering variety of domestic and regional policies” than on the UN negotiations as a source of impetus for growth, said Steve Sawyer, secretary-general of the Brussels-based Global Wind Energy Council.

As well as renewables spending exceeding that on new fossil plants, last year also was the first time expenditure in developing countries, mainly China, exceeded that in the industrialized world, Sawyer said, predicting both trends will continue.

The New Energy Finance figures exclude investment that merely replaces existing plants, and its renewables tally excludes money spent on building large hydropower projects.

Wind operators are likely to install 43 gigawatts of generating capacity this year and 48 gigawatts next year, up from 36 gigawatts in 2010, GWEC estimates.

Phuket Wind Turbines

Phuket  enewable energy projects on Racha and Lone islands, join the promotion of energy conservation and renewable energy investment. To reduce fossil fuel use, Phuket encouraged Esoc fund to invest in Racha island, moreover, requesting 18 million baht from Ministry of Energy and a Swedish fund in order to build turbines on Racha island.

In Racha island, there are a lot of hotels, resorts and bungalows which need the oil to generate the electrical energy and it costing around 100,000 baht per month.

This alternative energy reduced the cost s by 30-40% per year.

Lone island is located  5 kilometers from Phuket island.

There is 1 school, 1 public health center. A hundred households (mostly fishing and rubber plantation farmers). Moreover, this island has its own water resource.

Tthe electricity use on the island generated from diesel engines costs around 2,000 baht per month and can only be used only 2-3 hours per day.


Lone island will supply power voltage 100-watt level by running a combination of wind power, solar power and diesel engines.

This project is still in budget request process, which is strongly supported by the Ministry of Energy and the Swedish Fund. The process is now under implementation.


2MW Turbines

A typical wind horizontal-axis wind turbine has two or three blades, spanning a diameter of about 70m for a 2 MW turbine. A controller starts up the machine at wind speeds of about 3 to 6 m/s (8 to 16 mph) and shuts off the machine at about 25 m/s (55 mph). Gears connect the low-speed shaft to the high-speed shaft and increase the rotational speeds from about 30 to 60 rotations per minute (rpm) to about 1000 to 1800 rpm, the rotational speed required by most generators to produce electricity. Alternative designs are based on direct-drive generators, sometimes in combination with power electronics converters, which enable more efficient wind energy harvesting and improved system control over a wider range of wind speeds.


A 106 MW wind farm

enXco gets Indiana 106MW Hoosier wind farm up and running

The 106 megawatt Hoosier Wind Project has begun commercial operation near Fowler in northwestern Indiana, according to enXco. It consists of 53 REpower 2MW wind turbines.

All power will be sold to electric utility Indianapolis Power & Light (IPL) under a 20-year purchase agreement. enXco will provide operations and maintenance services.

“Indiana has great potential for future project developments, and we look forward to being a continued partner with the communities and IPL to increase wind generating capacity in the state,” says Steve Peluso, vice president, Midwest Development, at enXco .

The company, based in Escondido, California, north of San Diego, completed construction of Hoosier Wind in eight months. The project brings enXco’s gross installed wind energy capacity to 965.4MW.

A report released today by Environment America, a private environmental group based in Washington, DC, ranks Indiana’s power plants as the fourth dirtiest in the US behind those Texas, Ohio and Florida.

The report, which uses US Environmental Protection Agency data, says that Indiana power plants spewed 132 million tons of carbon dioxide into the atmosphere in 2007, the last year that data was available.

The state relies on coal to generate about 95% of its electricity, according to the report.

Richard A. Kessler

Published: Tuesday, November 24 2009 | Last updated: Wednesday, November 25 2009

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