Norway's state-controlled energy giant Equinor ASA (NYSE:EQNR) has abandoned plans to invest in Vietnam's offshore wind sector, dealing a significant blow to the country's green energy ambitions. According to the World Bank, over the past couple of years, Vietnam has attracted plenty of interest in its clean energy sector thanks to the country's strong winds in shallow waters near coastal, densely populated areas. Unfortunately, recent political turbulence in the country has paralyzed regulatory reforms and discouraged investors. For instance,…