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Welcome to YONERGY - Your Premier Engineering Sustainability Consultancy Partner!


At YONERGY, we lead the way in engineering sustainability consultancy, driven by a

mission to provide our clients with a crystal-clear understanding of the economic,

social, and environmental benefits of sustainability.


Our forte lies in delivering comprehensive energy efficiency engineering solutions through a multi-disciplined approach. What sets us apart is our ability to craft innovative solutions to intricate challenges, making us not just experts in our field but enthusiasts about our work. Our ultimate goal is to exceed expectations, turning each project into a resounding success.


Navigating the ever-evolving landscape of technologies and economic environments, we've cultivated strategic relationships that empower our clients to thrive in changing circumstances and move closer to their visions of success. We firmly believe that our success is intrinsically tied to the success of our clients.


YONERGY is dedicated to making energy efficiency, sustainable designs, and power accessible and affordable to building owners globally. With over two decades of extensive engineering, technical, and leadership experience, we've overseen diverse projects, including building design, facility assessments, feasibility studies, LEED design, and life-cycle cost analyses worldwide. Our market expertise spans K-12 schools, higher education, aviation, healthcare, commercial buildings, hotels, malls, mixed-use properties, government facilities, and more.


Meet our founder, Mr. Yonatan Tadesse, a staunch advocate of energy-efficient design. With a focus on surpassing client expectations in lowering energy usage and costs, he has led international teams in the US and the Pacific Region, including Japan and South Korea. His expertise encompasses comprehensive energy audits, over 21.5 million square feet of energy modeling and simulation, cost-benefit analysis, utility assessments, and the development of energy conservation strategies and sustainability programs. Overseeing $28 million in performance-based incentives for energy programs, he has played a pivotal role in supporting the development of several Energy Savings Performance Contracts (ESPCs).


Choose YONERGY as your trusted partner on the journey to sustainable and efficient engineering solutions.




YONERGY is a leader in mainstreaming new technologies to create cost-effective engineering solutions. We evaluate new technologies to determine the real economical, operational, and financial benefits they will bring to a project. Our clients are our motivators and we thrive on the challenges they offer us.




The organization of every YONERGY project reflects how each engineering discipline we offer influences all the others. Through careful scrutiny, and by using state-of-the-art computer software, we assure accurate, complete system integration.



© 2019 by YONERGY. 

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