State-of-the-art Engineering Software for Electric Utilities. Speed, ease-of-use and accuracy.

Advanced Systems for Power Engineering (ASPEN) Inc. was founded on January 9, 1986, with the goal of developing power system analysis software that is fast, reliable, and built around a natural, easy-to-use engineer–machine interface.After 40 years of dedicated effort and strong industry support, ASPEN programs are now used at 849 sites in 62 countries around the world.
The ASPEN team looks forward to continuing to meet new challenges in the power industry and to serving our customers for many years to come.