decommissioning

Dams Decommissioning going up globally

All large dams have finite life. What happens to the dams once the useful life of a dam is over? It would need to be decommissioned. Decommissioning of a dam generally refers to[i] complete removal of the dam and its associated structures. This is a very relevant question for India as the third largest dam builder of the world. It becomes even more important as large dams are no longer required or are no longer viable and importance of a flowing river is increasingly appreciated. It needs to be kept in mind that a dam cannot be allowed to remain on the river, without proper maintenance, as such a dam would remain a huge safety hazard for society and economy downstream from the dam.

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Dams · DRP News Bulletin

DRP News Bulletin 21 May 2018 (World Over New Renewables Are Making Large Hydro Unviable & Unnecessary)

According to an energy expert, 6,000 megawatts’ worth of wind and solar contracts had been signed in Cambodia, Vietnam, Thailand and Laos in the last six months, seriously challenging the financial viability of major hydropower projects on the river. Buoyed by a recent Thai government decision to delay a power purchase deal with a major mainstream Mekong dam, clean-energy proponents and economists told the third Mekong River Commission summit that the regional energy market was on the cusp of a technological revolution.

A six-year Mekong River Commission Council study on development plans for the Mekong, which was the focus of the summit, suggested catastrophic impacts upon the health of the river system if all planned hydropower dams — 11 mainstream projects and more than 100 on tributaries — were built.

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Europe

EUROPE-2017: Dam Removal, Hydro Threats & Cancellations, River Restoration in focus

FRANCE Largest dam removal project of the continent launched With thousands of proposed dams threatening Europe’s few remaining free flowing rivers, France’s decision to remove two large dams could signal the start of a new era on the continent – with countries focusing on reviving their rivers and on large scale dam decommissioning rather than construction.

With France leading the way, countries from Spain to Finland have taken down many small and obsolete dams in recent years, but freeing up the Selune represents the largest dam removal project so far in Europe – and a major step towards bringing life back to the river, including wild salmon and eel whose migrations have been blocked by the dams for decades. http://www.eubusiness.com/focus/17-11-212 Continue reading “EUROPE-2017: Dam Removal, Hydro Threats & Cancellations, River Restoration in focus”