Winds of change in renewables

When Tejpreet Singh Chopra ventured into the renewables sector, he realised quickly that maintenance is tougher than installations.  As CEO of Bharat Light and Power (BLP), Chopra had set up wind farms in five locations in India. All the farms together had about 200 turbines, each costing over $2 million.  This was the easy part. As the project matured and energy was steadily being generated, BLP began to face serious maintenance issues.  Each turbine has a generator, gearbox, bearings, and blades, which must work at peak efficiency in the short period when wind spee.....

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