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Peruvian energy authorities have declared a "grave" power shortfall in southeast Amazon region Madre de Dios.
The contingency applies to the electricity system that supplies regional capital Puerto Maldonado and surrounding areas, according to an energy and mines ministry resolution.
The measure tasks Electro Sur Este with carrying out required action to guarantee supply until cold reserve plant Puerto Maldonado is available.
The ministry highlights that the local system depends exclusively on 138kV transmission line San Gabán-Mazuco-Puerto Maldonado which is vulnerable to lightening and landslides. This has reduced supply reliability in recent years and led to continuous interruptions.
Last week, the ministry declared a supply shortfall for the San Martín region power system.
The latest ministry resolution comes as efforts to shore up the country's grid continue.
Information from energy and mining investment regulator Osinergmin reveals the watchdog authorized Empresa Eléctrica Cheves to begin commercial operations of the 172MW Cheves hydroelectric plant which cost US$506mn.
The complex in Lima region uses water from the Huaura and Checras rivers and includes an underground machine house (pictured above) which houses two Pelton type turbines. Connection to the national grid is via 220kV transmission line Cheves-Huacho.
Osinergmin also approved commercial operations startup of 220kV line Machupicchu-Abancay-Cotaruse (pictured below) in regions Apurímac and Cusco.