TotalEnergies ENEOS on Friday announced the start of installation of a nearly 28-MWp rooftop solar photovoltaic (PV) system at a factory in Vietnam of South Korean technology group Samsung Electronics Co Ltd (<a href="http://data.krx.co.kr/contents/MDC/MDI/mdiLoader/index.cmd?menuId=MDC0201020203" target="_blank">KRX:005930</a>).