Our energy engineering services will keep your building operating at peak performance!

What is Energy Engineering?

Energy engineering services help multifamily and commercial building owners and managers save on operating costs through energy efficiency while increasing building value and improving comfort and safety. Our whole systems approach accomplishes peak building performance by applying the latest in building science, alternative energy, performance data analysis, systems, construction technology, and post-retrofit performance tracking. In practice, this often means reducing current consumption through changes in operation and maintenance, or by investing in retrofits and new technologies.

Building science and energy engineering are professions that require years of training and field experience to become adept at identifying and resolving building performance issues. Our engineering staff includes a skilled mix of mechanical and energy engineers, energy simulation modelers, and building experts. Our expertise lies in analyzing building performance data, identifying building system issues, recommending effective performance improvements, setting energy efficiency targets, and tracking post-retrofit performance.

OpenStudio Support Services

NREL’s OpenStudio platform for EnergyPlus is changing the way building professionals approach energy modeling – are you prepared for the shift? We offer a variety of OpenStudio support services to help you get there!



Good energy management begins with an understanding of how a building uses energy. This “big picture” perspective gives a solid foundation for more detailed analyses of building systems and components. A building’s overall energy consumption profile is measured and documented during the benchmarking process. Our engineers can benchmark and compare all buildings in your property portfolio based on total energy and heating, cooling and baseload energy usage. This screening highlights the buildings in most need an energy assessment and efficiency upgrades.

Monitoring and Targeting


Our team can monitor the energy performance of your buildings, providing fast feedback about whether or not they are meeting predicted performance expectations. If not, we will figure out why, and recommend corrective action to achieve the energy saving threshold required for program incentives.

Measurement & Verification

measurement & verification

Measurement and verification (M&V) of energy and energy cost savings is playing an ever increasing role in helping building owners secure funding from financial institutions for energy efficiency projects. Studies show that less than 75% of predicted energy savings are achieved through traditional energy audits without M&V tracking. Our engineers verify that energy efficiency predictions were met, allowing owners to evaluate the actual return on investment from energy consumption reduction measures.

Let our staff of certified measurement and verification professionals (CMVP) help you on your next project.

Building Retuning

PSD offers a suite of Building Retuning services including tiered training, consulting, mentoring, or turnkey building retuning services as part of our suite of Intelligent Energy Engineering services. When the DOE’s Consortium for Building Energy Innovation (CBEI) decided they needed to develop a curriculum for their new Building Retuning process, they turned to PSD to develop and deliver the curriculum.

TREAT Engineering Support

treat modeling

TREAT, our award-winning energy modeling software, is approved by the US DOE for use in weatherization in all residential building stock – from mobile homes to multifamily buildings. Our engineering team offers advanced support for this tool, including remote modeling, mentoring, and quality control.

Let our energy simulation certified staff help you on your next project.

Energy Management

We offer comprehensive Energy Management services, providing the combination of services you need either directly under our consultation or as a lead contractor managing subcontractors.

Equipment Needs Survey

equipments needs survey

PSD engineering staff can survey all building equipment, such as elevator motors, air handlers, and pumps. We will assess the condition, offer advice on timing for replacements. Additionally, we can and recommend the new equipment and an estimate of savings to offer the best payback for your investment.

Certifications & Trainer Qualifications

  • New York State Professional Engineers
  • AEE BESA Certification Chair
  • Certified Existing Building Commissioning
  • Certified Energy Manager
  • ASHRAE recognized Building Energy Audit
    Professional (BEAP) Building Energy Modeling
    Professional (BEMP)
  • Subject matter expert on ORNL’s review panel for
    the new “Technical Guidelines for Multifamily
    Building Energy Audits” for the Department of
    Energy (DoE) Weatherization Assistance Program
  • Technical lead to Oak Ridge National Laboratory
    (ORNL) for their national field evaluation of the
    DoE WAP
  • Co-author of the ANSI/BPI-2400 standard
    (qualification of energy savings estimates)
  • RESNET Accredited Trainer
  • EPA ENERGY STAR Partner Trainer
  • Advanced Energy Certified Contractor Trainer
  • RESNET Quality Assurance Designee
  • Selected by NREL to perform OpenStudio training

Energy Engineering Trainings

Multifamily & Commercial

Our engineers are uniquely qualified to provide training for building managers and owners. We are one of the few companies to be selected to offer energy assessment training to government personnel at federal sites, and to offer training on advanced energy modeling for commercial buildings.

Energy Assessments (Audits)

energy assessmentDuring an energy audit, our engineers will assess how a building’s systems are performing, make recommendations on how the performance can be improved, and project the savings to investment ratio (SIR) so that you can make informed decisions. Our signature approach to multifamily and commercial auditing addresses the specific energy and operational needs of each unique building. Our goal is to help building owners increase the value of their property and reduce energy costs, while providing occupants with a comfortable, healthy environment.

Engineering Services

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Energy Engineering Clients