Abbott Engineering handles our energy modeling and energy performance calculations for 3 years. They are experts at surveying facilities, analyzing the operations, calculating energy use, and estimating energy savings. The staff is easy to work with, flexible, and the output is dependable. Abbott Engineers do a great job of presenting technical topics to the layman. They are able to convey technical concepts and ideas with out belittling people or talking over their heads. Everyone at Abbott is an excellent listener.