Residential Energy Efficiency Consulting Long Beach

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For comprehensive residential energy efficiency consulting near Long Beach, contact Gilleran Energy Management. Founded in 2002, GEM offers expert home energy efficiency services for homeowners, affordable housing, and developers. Our team understands that no two projects are alike; whether you’d like to identify areas of inefficiency around your home or construct a Zero Net Energy building, you’ll receive a custom-tailored plan with clear recommendations to bring your goals to life.

Contact us today to discuss your energy efficiency needs.


Our consultants keep up with the latest regulations, standards, and certification requirements to ensure they deliver the most effective and up-to-date solutions for your project. GEM will work closely with your design and construction team to ensure all energy standards are met without compromising the home’s key aesthetic elements. From helping you choose the best energy-efficient upgrades to permit approvals and certification programs, we’ll assist you every step of the way.

Our residential energy efficiency consulting in Long Beach includes:

  • All-electric building energy analysis for transitioning from natural gas to all-electric building design
  • Evaluation of new affordable housing for the California Energy Commission’s new BUILD all-electric low emissions development program
  • Evaluation of residential new construction and alterations for the California Energy-Smart Homes program (provides incentives to adopt advanced energy measures and transition to all-electric construction)
  • Building Energy Modeling and Title 24 Compliance Analysis
  • Building Performance Testing: BPI, Title-24, CALGreen, HERS
  • Evaluation for 45L federal tax credit
  • Zero Net Energy
  • ENERGY STAR Certification
  • Single and Multifamily HERS II & BPI-based
  • Energy Audits and Modeling
  • Residential Auditing
  • Energy Conservation
  • Cost-Benefit/Return on Investment Forecasting
  • Performance Testing
  • Solar-PV System Sizing


In addition to our home energy efficiency services, GEM also offers consulting and project support for green building, from state-mandated third-party verification to nationally recognized certification programs. Our expertise will ensure your project is streamlined and offers long-term value, whether you’re a homeowner, a business owner, or a developer. For more information on our residential energy efficiency consulting services in San Jose, contact Gilleran Energy Management today at (707) 528-7318 or email us