电力板块1月20日涨0.9%，恒盛能源领涨，主力资金净流入1.35亿元

Group 1 - The electricity sector increased by 0.9% compared to the previous trading day, with Hengsheng Energy leading the gains [1] - The Shanghai Composite Index closed at 4113.65, down 0.01%, while the Shenzhen Component Index closed at 14155.63, down 0.97% [1] - Key stocks in the electricity sector showed significant price increases, with Hengsheng Energy rising by 10.01% to a closing price of 27.47 [1] Group 2 - The electricity sector experienced a net inflow of 135 million yuan from institutional investors, while retail investors contributed a net inflow of 439 million yuan [2] - Major stocks like Shanghai Electric and Nanfang Energy saw varying levels of net inflow and outflow from different investor types [3] - Hengsheng Energy had a net inflow of 92.45 million yuan from institutional investors, indicating strong interest despite a net outflow from retail investors [3]