China mandates new solar efficiency standards from January 2027
China has published three mandatory national standards on energy consumption and energy efficiency for the photovoltaic (PV) sector, establishing a new compliance framework covering polysilicon, silicon wafers, PV modules and inverters. The standards, GB 29447-2026, GB 47835-2026 and GB 47834-2026, were released on June 27, 2026, and will come into effect on January 1, 2027….