A股电力板块盘初走强，三峡水利、华电辽能、华银电力三股涨停，京能电力、长源电力、西昌电力、涪陵电力跟涨。

Group 1 - The A-share power sector showed strong performance at the beginning of trading, with significant gains in several stocks [1] - Three stocks, namely Three Gorges Water Conservancy, Huadian Liaoning Energy, and Huayin Power, reached the daily limit increase [1] - Other companies such as Jingneng Power, Changyuan Power, Xichang Power, and Fuling Power also experienced upward movement in their stock prices [1]