Advanced Energy, a provider of highly engineered, precision power conversion, measurement, and control solutions, offered to acquire XP Power, a manufacturer and supplier of critical power control systems, for £571m. "We believe that the proposed offer for XP Power provides compelling value for both Advanced Energy's and XP Power's shareholders. By expanding our portfolio of products and technologies, and combining our technical capabilities, we believe we will be better able to meet the growing needs of our customers," Steve Kelley, Advanced Energy President and CEO.