Wind Energy Current Affairs

World’s first wind farm being built off Scotland coast

The world’s first full—scale floating wind farm is being built off the coast of Scotland in the North Sea. The wind farm, known as Hywind is a trial project which aims to bring power to 20,000 homes.

The floating wind farm technology will allow wind power to be harvested in waters that are too deep for the existing bottom—standing turbines particularly installed in shallow waters.

Significance

Unlike normal turbines, floating turbines are not attached to the seabed by foundations. Rather, they are attached by long mooring tethers, allowing them to be placed in deep water. Traditional fixed turbines work best at a depth of 20-50m on stationary base.

Key Facts

The park will be around four square kilometers in size in deep sea. Each turbine in the park will be floating at a depth of between 95 and 120 metres.  Each turbine tower, including the blades in the floating wind park is 175m high and weighs 11,500 tonnes. It uses a large buoy filled with iron ore to weight the base to keep it upright. The turbines also make use of new blade technology, which twits the blades in order to lessen the impact of wind, waves and currents to hold turbine tower upright.

Benefits

The turbines in the floating wind farm can operate in water up to a kilometre deep. The power output is also larger than power generation from current stationary turbines. This revolutionary tech development project will demonstrate workability of floating wind farm technology in open sea conditions and also help to bring costs down.

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India ranks 4th in 2016 Global Wind Power Installed Capacity Index

India ranked 4th in the Global Wind Power Installed Capacity index with cumulative installed wind power generation capacity of 25,088 MW in 2015.

The index was released was released as part Global Wind Report: Annual Market, flagship publication of the Global Wind Energy Council (GWEC).

Key facts
  • The index was topped by China, followed by US and Germany with cumulative installed wind power top-10-countriesgeneration capacity of 145362 MW, 74471 MW and 44947 MW respectively.
  • Both Europe and the US markets performed better than expected and the European offshore sector set a new record, installing just over 3 GW. Canada, Mexico and Brazil all had strong years.
  • South Africa was the first market in Africa to pass the 1,000 MW in 2015 and alongside Egypt, Morocco, Ethiopia and Kenya were also leading development in that market.
  • Brazil continues to lead in Latin America, followed by Chile and Uruguay and a potentially very large market is just now opening up in Argentina.
  • India has achieved the largest-ever wind power capacity addition of 3,423 MW in 2015-16, exceeding the target by 44%.

annual-installed-capacity-by-region-2007-2015

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