sentences:  Two HTR-PM units, scaled up versions of the HTR-10 with 250-MWt capacity, are under construction at the Shidao Bay Nuclear Power Plant near the city of Rongcheng in Shandong Province.HTR-10 is modeled after the German HTR-MODUL.Like the HTR-MODUL, HTR-10 is claimed to be fundamentally safer, potentially cheaper and more efficient than other nuclear reactor designs.