AC Boiler SpA

Energy Allied Services has partnered with AC Boiler SpA, formerly Ansaldo Caldaie, a subsidiary of Sofinter LLC, is well positioned to provide its North American clients with a full range of commercial, technical and after-sales support for the entire array of AC Boiler products.


With over 150 years experience in Steam Generation and Burner Technology and a track record of 1000 units exceeding 80,000 MW installed worldwide, AC BOILERS SpA, formerly Ansaldo Caldaie,  is the largest Italian original technology Boiler Manufacturer, providing the full range of Steam Generator Technologies:

  • Coal, oil, gas fired Utility Boilers
  • Heat Recovery Steam Generators for Combined Cycle Power Plants
  • Biomass and Waste-to-Energy Boilers
  • Low NOx firing systems


AC BOILERS provides also rehabilitations, fuel conversions and after-sale services for existing boilers. The Company has been part of the SOFINTER Group since 2001.


Among our strength points:

  • World leadership in the last 30 years for Oil Fired Supercritical Boilers
  • Supply of Coal Fired Ultrasupercritical Boilers successfully operating
  • Diverse range of HRSG products including horizontal, vertical, multi-pressure, post firing