Our Mission

To provide engineering design, energy system reporting, and code compliance to Building Owners through innovative strategies, structured reporting, and client collaboration for the most efficient and practical end product.  

Our Vision

As construction and energy costs and requirements become more stringent, Energy System Engineers strives to provide building owners education, economic solutions, and energy efficiency measures to reduce bills, limit maintenance, and provide a lasting building for a better tomorrow.

Our Values

At Energy System Engineers, the Building Owners are our number one priority. Through integrity, knowledge, and hard work, our number one goal is to serve our clients first and foremost. Code requirements can be idealistic goals, it is our job to serve our clients with realistic and practical solutions.


Logan Gullickson, Principal

A University of Idaho graduate with a B.S. in Mechanical Engineering, Logan spent the first year of his career as an industrial/commercial mechanical design engineer in Boise, ID working for clients such as Chobani and Micron. Following this, Logan moved his way over to Spokane, WA where he performed commercial design services as well as energy life cycle costing for nearly 6 years and acquiring his professional engineering license. During this time, he became well versed in energy codes, mechanical system design, and overall building efficiency. He has a well balanced mechanical design portfolio, strives for excellence in every project, and considers professional relationships a top priority.

As a family man, Logan believes in working hard when he is at work, and playing hard when its time to play. Spending time with his family skiing, biking, and hiking will always be in balance with running the business and striving to be the best he can be as both a business owner and father. 

Lance Hart, Principal

Lance Hart, a dedicated principal at our firm, is a mechanical engineering professional with a robust foundation in Mechanical Engineering Technology, earning his BS degree from Eastern Washington University. Spokane is not just a city for him; it's his lifelong home, and his commitment to the local community is unwavering.

Having gained valuable experience in Seattle designing mechanical and plumbing systems, Lance returned to Spokane, where his heart resides. Holding engineering licenses in both Washington and Oregon, Lance's expertise spans a diverse spectrum, from his extensive work in the K-12 education sector to his versatility in handling various commercial projects.

As a family man, Lance brings a personal touch to his work, understanding the profound impact well-designed systems have on the lives of individuals and communities. A graduate of the Green Program and an active member of ASHRAE, Lance takes immense pride in his work. His commitment to continuous learning and professional growth not only defines him as an engineer but as an individual dedicated to making a positive difference through his contributions to the built environment. With Lance at the helm, our firm is guided by excellence, integrity, and a passion for creating sustainable and innovative solutions.