Waiola, Fiji: The Monasavu-Waiola hydroelectric scheme is Fiji’s largest storage reservoir, impounding 133 million m3 of water on the Nanuka River. The turbines at the Waiola plant produce about 80 MW of energy, half of the island’s needs.
After almost 40 years of continuous operation, Energy Fiji Limited (EFL) decided to carry out the ‘Waiola Mid-Life Refurbishment Project’. In 2016 and 2017, ANDRITZ received two contracts for refurbishment of the electro-mechanical equipment. The scope of supply of both contracts comprised design, manufacturing, installation and commissioning of four new spherical valves and four new turbines and governors. Both contracts include hydraulic systems and accessories. Commissioning of the first unit was successfully completed in December 2019, installation and commissioning work for the remaining three units will be completed in 2020.