Changes

Generating units 1 and 2 were retired on March 1, 2000, while unit 3 was taken out of service in 1999. As a result, the current total generating capacity of Mae Moh power plant is 2,400 MW.<ref>[http://www.egat.co.th/en/index.php?option=com_content&view=article&id=36&Itemid=117 "Mae Moh power plant,"] EGAT, accessed Jan 2014.</ref>

Units 4 through 7 (150 MW each) of the power station are being replaced.<ref name=Plan>[http://www.egat.co.th/en/images/about-egat/PDP2010-Rev3-Eng.pdf "Summary of Thailand Power Development Plan 2012-203, Revision 3,"] Ministry of Energy, June 2012, Table 4.1</ref> As of 2014 TEAM Consulting Engineering and Management Co., Ltd. is working on the environmental and health impact assessment of the 600 MW coal project.<ref name=TEAM>[http://www.teamgroup.co.th/index.php/en/credentials/projects/environmental-management/699-replacement-of-units-4-7-at-mae-moh-power-plant-lampang.html "Replacement of Units 4 – 7 at Mae Moh Power Plant, Lampang,"] Team Group, accessed Feb 2014.</ref> In March 2015 Alstom and Marubeni Corporation were contracted to provide a 600 MW ultra-supercritical unit, at a cost of US$1 billion.<ref>[http://www.alstom.com/press-centre/2015/3/alstom-to-build-the-first-ultra-supercritical-lignite-fired-power-plant-in-asia/ "Alstom to build the first ultra-supercritical lignite-fired power plant in Asia,"] March 09, 2015</ref>