Chinese power stocks are headed for their best week in years as investors bet on the surging energy demand from data centers powering artificial intelligence.

Shares of solar energy equipment maker CSI Solar Co. have jumped more than 40% this week, set for their best showing since 2023, while those of electrical component producer TBEA Co. have rallied nearly 30%. That compares to a gain of less than 1% in the onshore benchmark CSI 300 Index.