Energy Efficiency Consulting

In an era defined by the urgent need to combat climate change and reduce carbon emissions, California is at the forefront of pioneering green building solutions. At Gilleran Energy Management, we take pride in closely collaborating with project teams to offer tailored energy efficiency consulting services that serve as a blueprint for optimizing energy performance, enhancing building resiliency, reducing energy costs, and implementing effective strategies and upgrades to create sustainable, environmentally responsible homes and businesses. 

Founded in 2002, our energy efficiency consulting firm works with a wide range of clients, including those in the affordable housing, single-family residential, commercial, winery, school, and cannabis sectors. Our collaborative and highly experienced team takes pride in helping you from the planning stage through project completion. 

Contact us today at (707) 528-7318 to schedule a consultation. 

Comprehensive Energy Efficiency Consulting Solutions

As California grapples with the ever-increasing impacts of climate change, the state’s commitment to significantly reduce emissions has never been more critical. To achieve this goal, California is doubling down on its efforts to raise building energy efficiency standards and accelerate decarbonization. This seismic shift is reshaping the landscape of how buildings are designed and constructed.

Our energy efficiency consulting firm uses state-of-the-art diagnostic tools to identify discrepancies between a building’s predicted and actual energy usage. Our commitment to providing accurate, independent, and objective advice ensures that we deliver actionable steps to cost-effectively implement energy-efficient solutions. We aim to address any areas of inefficiency and improve current energy savings, as well as optimize future operational costs.

We understand that every project is unique, which is why we offer a range of specialized services to cater to diverse needs:

  • HERS
  • Commissioning
  • Retro-Commissioning
  • Zero Net Energy
  • ENERGY STAR Certification
  • ENERGY STAR Benchmarking
  • Residential Auditing
  • Single and Multifamily
  • HERS II & BPI-based
  • ASHRAE Level 1
  • ASHRAE Level 2
  • ASHRAE Level 3
  • Life-Cycle Cost Analysis
  • Affordable Housing
  • Tax Credit Services
  • Rebuild S

Contact Us Today to Discuss Your Project

Our energy efficiency consultants stay current on the latest regulations, certifications, and best practices to ensure we’re offering the most effective solutions for your project goals and budget. When you work with GEM, you’ll receive full support every step of the way. Contact Gilleran Energy Management today at (707) 528-7318 or email us at to discuss how we can assist you.