Siemens AG, Europe's largest engineering company, plans to raise spending on research and development to 4.5 billion euros ($6.2 billion) in 2011 as it pours more money into its range of energy-saving equipment. This year's budget represents a record when adjusted for disposals, and is a 17 percent increase over last year's 3.85 billion euros, spokesman Ulrich Eberl said in a Jan. 26 phone interview. The budget for wind-energy products has tripled in the past two years, Rene Umlauft, head of Siemens's renewable energy division, said in an interview.