About DEG

Established in 1981, DEG is a mechanical engineering firm focusing on reducing net energy use in buildings through the application of energy efficiency and renewable energy technologies. DEG combines design, energy analysis and evaluation, energy program management, and product development under one roof. This combination of project activities allows each discipline to cross pollinize the others, thereby contributing to the quality and value of all of our services.

We invite you to explore the project areas of our website. If you have questions about how we can help you find the solutions you are seeking, please do not hesitate to contact us.