Selling power and "giving stock": Generac (GNRC.US) secures a $2.4 billion generator order from Amazon, surging over 35% after hours.

Zhitong Finance APP has learned that Amazon (AMZN.US) has obtained warrants to purchase up to $340 million worth of shares in backup power provider Generac (GNRC.US), driving the company's stock price to surge more than 35% in after-hours trading on Wednesday.