Our Company
Gabel Energy is a leading building energy consulting firm specializing in building energy analysis and California Title 24 Part 6 energy code compliance. The company's professional staff is unique in its depth of knowledge and experience. Since its inception in 1981, Gabel Energy has provided energy consulting assistance on thousands of building projects including low-rise residential buildings, high-rise apartments, office buildings, retail buildings, restaurants, schools and college buildings, recreational facilities, industrial facilities, warehouses and other special occupancy buildings. Our long time clients – architects, mechanical engineers and builders – appreciate us because we're:
  • Easy to work with;
  • Knowledgeable and helpful;
  • Prompt and responsive;
  • Effective in dealing with special construction or permit problems;
  • Able to provide significant added value in our consultation; and
  • Reasonably priced for the services that we provide.
Download Firm Resume
Professional Staff
Gina Rodda
Principal/Owner, Residential and Nonresidential CEA, LEED AP
gina at gabelenergy-dot-com

Rosemary Howley
Manager, Utility and Education Division/ Senior Energy Analyst
Residential and Nonresidential CEA
rosemary at gabelenergy-dot-com

Marina Chavez Blanco
Manager, Nonresidential Division/Senior Energy Analyst
Residential and Nonresidential CEA, LEED AP
marina at gabelenergy-dot-com

Michelle Austin
Manager, Residential Division/Senior Energy Analyst
michelle at gabelenergy-dot-com

Fiona Terreri
Energy Analyst
Residential CEA
fiona at gabelenergy-dot-com

Melissa McElvane
Energy Analyst
melissa at gabelenergy-dot-com

Arielle Usher
Energy Analyst
ari at gabelenergy-dot-com

Stefanie Hornby
Accounting Manager
accounting at gabelenergy-dot-com

Teresa Zieminski-Myers
Office Manager
office at gabelenergy-dot-com

For a description of CEA (Certified Energy Analyst) qualifications, go to www.cabec.org.
Mission Statement
Our mission is to provide the most skilled and knowledgeable technical assistance in the area of building energy analysis and design. We aim to assist architects, mechanical engineers, lighting designers, HVAC contractors, building contractors and developers, homeowners, government agencies and utility companies by:
  • Accurately evaluating the projected energy performance of building energy efficiency measures;
  • Helping to decide which energy measures are most cost-effective in meeting and exceeding the energy code, obtaining energy incentives or in producing the lowest life-cycle cost; and,
  • Providing all necessary reports and documentation for building permits or for energy incentive applications or as part of energy design recommendations.
Firm History
The firm has a long history of innovation and initiative which has helped shape energy consulting work and the California Building Energy Efficiency Standards. From the firm's inception to the present, Gabel Associates has been known for the highest quality California building energy code compliance analysis and consulting for architects, engineers and other building industry professionals throughout the state.

In 1984, Michael Gabel, our founder, developed the first full-featured energy compliance program, COMPLY 24. We worked closely with the California Energy Commission in the late eighties and early nineties developing some of the first energy code compliance manuals and software criteria for the performance method. Since 1986, Gabel Associates has been active in the formation and development of the California Association of Building Energy Consultants (CABEC) and has been an integral part of the development of the Certified Energy Analyst (CEA) program, the only certification program for energy consultants in California.

Since 2003, Gabel Associates has helped many cities and counties develop and implement local green building and energy ordinances that exceed the California Standards ("reach codes").

In 2016, Gina Rodda, a long-time employee who previously part-owned a mechanical engineering firm, took over the company when MikeGabel retired. She is a subject-matter expert and instructor on Title 24 Part 6 throughout the state, and works closely with Energy Code Ace (IOU funded program to support the California energy code).Through Energy Code Ace the company overall continues supporting the energy standards through a wide variety of projects in the state. In the fall of 2016, the business moved to Castro Valley, CA after 35 years in Berkeley. In early 2017, the company changed their name to Gabel Energy, to better reflect the work and commitment towards building an energy efficient world.
List of Projects
Selected List of Projects by Building Type:
Single Family Homes
Low-Rise Multi-Family Housing
High-Rise Residential
Office Buildings
Retail Buildings
Schools and Universities
Recreational Facilities
Client References Available Upon Request from:
Mechanical Engineers
HVAC Contractors
Builders & Developers
School Districts
Governmental Agencies
Utility Companies
Working With Us
We recommend that you phone us to discuss any new project, even if you e-mail us a letter which explains it. Always include your phone number, and we will get back to you with questions. Local clients can make an appointment to bring new projects to our office in person, including a brief (15 minutes or less) intake meeting.

Our experience is that it is more productive to talk about a project and be clear on important information early on than us make assumptions which are incorrect. If you authorize us to proceed with a project, please make note of the name of the person at Gabel Energy who is working with you. All further communication on that project should be with that one person.

Even if you e-mail us CAD drawings, we also would like a hard copy scaled set of drawings sent to us (see Send Us Drawings below).

Intake Forms

Preliminary questions can be answered in advance by downloading the Residential Intake Form for all low-rise residential buildings; or the Nonresidential Intake Form for all nonresidential and high-rise residential buildings. Fill in as much information as you can, and send the form back to us electronically or by fax or mail it with a hard copy of the plans. Make sure you identify which project the intake form refers to.

Send Us Drawings

Although we can use some data directly from electronic CAD files, we generally need a hard copy set of drawings to work from. Please send us a readable, scaled set of hard copy drawings, or we will have them printed and charge you our direct cost. Hard copy drawings should be in a standard scale (e.g., 1/8”, 3/16”, 1/4”). Electronic CAD files should have all layers bound and sent in *.dwg format. If drawings are not to scale, or if you do not send us a readable scaled set of hard copy drawings, we may have to charge an extra fee for our additional time and effort.

Turn Around Time

Our turn around time is typically 3 to 8 working days for smaller projects, and 5 to 10 working days for larger projects. If you need us to complete a project faster than that, please mention your preferred timeline to us. Note than especially large and complex projects may take longer than 10 working days.

Energy Report Formats

We can send you as many wet-signed hard copies of our energy report as you need, as well as making the transparencies ("sticky-backs") of the Certificate of Compliance and Mandatory Measures Checklist pages that are supposed to be on the permit drawings submitted to the building department. Alternatively, we can send you the full report in Adobe Acrobat *.pdf format with our documentation author signature included, and provide the selected pages that go on the drawings in either *.jpg or *.tif format. Simply let us know your preferences before we print the report.