In Cambodia, hydropower electricity generation has greatly increased during the present decade. While in 2010 only a few percent of Cambodia’s electricity was generated through hydropower, in 2017 this was more than 60%. A major contribution was enabled through completion of the Lower Sesan II Dam, located at the confluence of the Sesan and Srepok Rivers in north-east Cambodia, in November 2017. The dam generates about 400 MW of electricity and several more hydropower constructions are planned during the next few years. The difference at the confluence of the Sesan and Srepok Rivers before and after completion of the Lower Sesan II Dam is clearly visible between this(100 m image of 11 March 2017) and the previous image (100 m image of 26 March 2018). At the left part of both images the Mekong River, of which Sesan and Srepok are tributaries, flows towards the south. Both images can be downloaded in high resolution on the PROBA-V website (http://proba-v.vgt.vito.be/).