美国电力能源公司（AES）与谷歌数据中心签署供电协议后，盘前股价上涨2.5%。

Group 1 - The core point of the article is that AES Corporation's stock price increased by 2.5% in pre-market trading after signing a power supply agreement with Google's data center [1] Group 2 - The agreement between AES and Google is significant as it indicates a partnership in the energy sector, particularly in renewable energy supply [1] - The stock market's positive reaction reflects investor confidence in AES's strategic moves and potential growth opportunities [1]