Legislators, meanwhile, push through geothermal project financing bill.
A Moody's analyst spoke to BNamericas about the effects that the investigations related to the Odebrecht bribe scandal have had on the region's infrastructure sector.
The auction is due to be held in November and is expected to attract US$4bn in investment.
Panel of experts agrees that by combining technologies, Chile can competitively meet its power needs entirely through renewables and large-scale battery storage.
Electricaribe, recently ordered into liquidation, was the most cited utility.
Brazil's proposal is set to be presented to the neighboring country in about 30 days.