The first unit began operating in June 2015, and will be solely exported to the Electricity Generating Authority of Thailand (EGAT) through a 500-kilovolt power grid system stretching over 67-km. The second unit is planned to begin commercial generation in November 2015 and the third in March 2016.<ref>[http://englishnews.thaipbs.or.th/laos-hongsa-power-launches-commercial-power-generation "Laos’ Hongsa Power launches commercial power generation,"] Thai PBS, June 3, 2015</ref>
Unit-2 began operating on 2 Nov 2015,<ref>[http://www.industcards.com/st-coal-elsewhere.htm "Coal-Fired Plants Elsewhere,"] Industcards, accessed April 2016</ref> .
===Unit 4===