Vestas Wind Systems A/S raised its sales and income forecast after strong orders in the usually weak first quarter drove the backlog at the biggest wind turbine maker to a record. Shares surged to a five-year high. The Aarhus, Denmark-based company reported net income of 56 million euros ($63 million) in the first three months, almost double the 29.7 million euro average that analysts had expected. It also enjoyed a 13 percent increase in revenue from its services business even though the year-ago period was fattened with rare contracts maintaining machines offshore. “This has been a historically strong first quarter on revenue, margins, order intake, and return on invested capital,” Chief Executive Officer Anders Runevad said. “Vestas is making good progress toward achieving its profitable growth objectives. […]