ENERGY ENGINEERING

Griffith Engineering is a leader in the Energy Engineering field. Since the firm’s first day in business, GEI has been a “go to” resource for understanding how buildings and their systems use energy, as well as acting as a guide to help our customers make their energy reduction goals a reality.

Facility Energy Auditing
Energy Modeling
Utility Rate & Rebate Analysis
Performance Contracting Support
District Energy Plant Analysis
Third Party Project Review
Additional Services


Facility Energy Auditing

An energy audit is like a medical check-up for your building. And like you would never trust the care and well being of your body to an untrained person, you should never trust the evaluation of your building to an inexperienced engineer.

The GEI team has audited over 150 million square feet of buildings since our founding in 2004. A successful energy project starts with a comprehensive energy audit. We pride ourselves on only using experienced engineers for our audits because we understand that it is critical that the person doing the audit doesn’t just know how to check boxes and copy down model and serial numbers on equipment. They need to understand the complexity of buildings and systems and how they work in order to identify the best opportunities. You always get the best when you work with GEI.

GEI has experience providing a range of energy audits, from high level ASHRAE level 1 audits, to full investment grade energy studies. GEI can deliver recommendations on all energy and water consuming systems, including HVAC equipment, fans, pumps, lighting, plumbing fixtures, kitchen equipment, and more. The goal of all of our audits is to provide our clients with the information necessary to make informed decisions about the future of their buildings and direction of their projects.

Sample Projects

Darlington Apartments
Oak Ridge
Maid Farms

Client Benefits

  • Thorough building analysis
  • Increased understanding of building energy consumption
  • Identification of current system deficiencies
  • Development of list of recommended energy conservation measures (ECMs)

Energy Modeling

A building energy model is an invaluable tool in predicting the impact of changes to building systems and changes to sequences of operation. The model is an essential part of any investment grade energy project because it allows the identified Energy Conservation Measure (ECM) opportunities to be operationally evaluated to determine viability. Following a building energy audit, GEI uses the collected information to build a model your facility or facilities. We use current and past utility bills and/or onsite data logging to allow calibration of our electronic models to the historical consumption of your facilities. This model can then be used to analyze different building envelope, HVAC and lighting systems to find the most efficient energy solutions for your facilities. We analyze building systems and calculate detailed energy savings utilizing hourly, site-specific weather data. GEI uses a variety of modeling software packages such as Trace 700, Carrier HAP, and eQUEST.


    In addition to modeling existing facilities, GEI has numerous experience constructing the required energy models for LEED certification. As a part of this service, GEI will complete the necessary LEED forms that go along with the associated EA credits, as well as provide recommendations on how to increase EA points. Our extensive experience and familiarity with current software has lead architectural clients to desire our services, especially when building types and operation are complex and unique. In addition to more standard building types, GEI has experience certifying technically complex facilities including research laboratories, vivariums, and industrial and process heavy facilities.

    Sample Projects

    Peninsula Regional Medical Center
    Georgia Mountain Authority
    Sustainable Energy and Technology Center (SEnTeC)

    Client Benefits

    • Attain a calibrated building energy model to utilize as an ongoing tool to analyze energy consumption impact of new improvements, additions, or modifications to the building and/or the building’s systems
    • Develop more accurate system operation strategies
    • Compare existing system operational costs to alternative systems operational costs
    • Calculate annual and lifecycle energy and cost savings for proposed ECMs

    Utility Rate & Rebate Analysis

    Understanding how a building uses energy in relation to how a utility charges that building for energy can be a powerful tool for lowering utility costs. Investigating utility tariff options in the context of historical demand and usage can often lead to substantial dollar savings, in turn allowing clients to reinvest their energy dollars into facility improvements.

    Examples include propane-air systems that allow a client to utilize an interruptible gas rate structure that results in lower gas costs.

    In addition to rate analyses, many utilities offer rebates or incentives for installing new energy efficient systems and equipment. GEI can help you understand and apply for rebate where available. This can often improve the financial viability of desired energy efficiency improvements.

    Sample Projects

    Avonlea on the River
    Atlantic Station
    SCAD

    Client Benefits

    • Lower energy rates
    • Lower utility costs
    • Reduced cost of energy efficiency measures
    • Ability to reallocate operation funds to capital improvements

    Performance Contracting Support (ESCO/Utility)

    Developing an ESPC or UESC contract can be a time consuming and technical process, and numerous ESCOs and utilities rely on GEI to provide engineering support for these projects. GEI understands the process required to put these projects together, making our energy engineers a seamless addition to your team. From preliminary auditing and energy analysis, to system design, commissioning and M&V, GEI can provide all or part of your engineering needs.

    Some companies outsource almost all engineering tasks to GEI, while others pick and choose the skills needed to supplement their internal resources. Our goal in providing ESPC/UESC support is to make the life of your project developers easier and to ensure that your project is successful.

    Sample Projects

    Fort Greely
    Knox Country
    SCCPSS, NAS Oceana
    University of Central Missouri

    Client Benefits

    • Engineering team experienced with all phases of the project
    • Flex resources based on individual needs
    • Small Business partner
    • Highest quality engineering analysis
    • Additional resources to pursue more projects

    District Energy Plant Analysis

    With an extensive background of working with utilities and building owners in the development and evaluation of district energy options, GEI brings a unique level of expertise to clients evaluating system alternatives. GEI helps quantify the cost of district energy alternatives to allow clients to make more educated decisions regarding their facilities.

    Sample Projects

    John B Shepherd Central Plant (CAU)
    Downtown Cincinnati
    Atlantic Station

    Client Benefits

    • Sound financial basis for central plant decision making
    • Full understanding of the impact of a heating and cooling plant
    • Clear pathway to meet future goals

    Third Party Project Review

    Many building owners do not have significant experience executing performance contracts. GEI’s experience working with performance contracts and energy studies make us a great resource when you need third party review of your projects. We provide thorough and expert review of your proposed projects to ensure viability of the energy savings. Every ECM  is evaluated for proper calculation methodology, proper assumptions and reasonable results. The measurement and verification protocols are also reviewed to insure that they are fully encompassing and truly measure what is being guaranteed so that the owner is protected should the contract supplier not meet expectations.

    When the state of Georgia moved forward with its pilot ESPC project for the Department of Corrections, GEI was asked to provide the third party review. We identified areas where savings assumptions were unreasonable and advised the state on the risks and rewards of the proposed M&V plan. With our recommendations, the State and DOC were able to make an informed decision on how to best proceed with the project.

    Sample Projects

    GEFA Pilot ESPC
    Missouri State University
    Georgia Department of Corrections

    Client Benefits

    • Expert review of savings calculation methodologies to ensure accuracy
    • Works toward protection for owner should the ESPC/UESC not deliver on promises
    • Empowers the owner to make informed, financially sound decisions

    Additional Services

    GEI has performed numerous additional services for our energy clients. We pride ourselves on understanding the process of making an energy project a reality, from preliminary discussion to measurement and verification of savings.

    In addition to the aforementioned services GEI has provided the following:

    • New Technology Application
    • Measurement and Verification Development & Execution
    • Data logging and Utility Metering
    • Blower Door Testing
    • Thermal Imaging
    • Lighting Audits
    • Energy Star Certification
    • Life Cycle Cost Analysis
    • Lower Utility Costs
    • Energy Savings Through Behavioral Modification