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Chilean state oil company Enap's 77MW Aconcagua gas-fired cogeneration plant is currently 95% complete with construction expected to be finished in February or March as opposed to this month as scheduled at a cost of US$200mn, 67% more than initial estimates, an Enap representative told BNamericas.
The state firm filed a new environmental impact assessment with environment regulator SEA for adjustments to the plant located in Concón, Valparaíso region.
The changes mainly consist of incorporating fresh air firing into the plant's HRSG boiler to provide more stable output as the units outlined in the original plans will no longer be built after local groups petitioned to reduce the scale of the project.
The plant is designed to provide stable power and steam to Enap's nearby Aconcagua refinery, which supplies fuel to 30% of the domestic market. It will also supply power to the Quintero LNG terminal.
The residual energy produced by the plant will be injected into the central grid.