Hongkong-listed Beijing Datang Power Generation Company Limited (HKEx: 991; LSE:DAT; ADR:BJDHY) said that its 80-owned Hebei Datang Tangshan Thermal Power Unit 1 (300MW), started commercial operation on March 1 and is now connected to the Beijing Tianjin-Tangshan power grid. The plant passed the safety standard set by North China Grid Company Limited. Tangshan Thermal Power…