Hillmann Energy Consulting Services: Audits, Retro-Commissioning, and Sustainability Solutions for Commercial Real Estate

Hillmann Consulting, LLC expanded its energy consulting capabilities through the acquisition of Abraxas Energy Consulting in 2024, strengthening our ability to support commercial real estate owners, developers, and lenders with energy audits, retro-commissioning (RCx), and sustainability consulting services.

As building performance regulations continue to evolve and operating costs rise, this integration allows Hillmann to deliver more comprehensive, end-to-end solutions that help clients improve efficiency, reduce expenses, and meet compliance requirements with confidence.

What This Means for Commercial Real Estate Owners and Developers

Today’s real estate environment demands more than standalone services. Clients need a partner who understands the full lifecycle of a property—from acquisition through operations.

By integrating Abraxas’ energy expertise into The Hillmann Family of Companies, we provide:

• Streamlined consulting across disciplines – environmental, due diligence, construction, and energy services under one provider
• Improved access to funding opportunities – including Inflation Reduction Act (IRA) incentives, tax credits, and local/state programs
• Support for building performance standards – across major markets with evolving compliance requirements
• Actionable insights that reduce operating costs while improving asset value and performance

Our approach focuses on delivering the right level of analysis—helping clients avoid unnecessary studies while ensuring they meet lender, regulatory, and investment requirements.

Integrated Energy Consulting Services

Hillmann’s expanded energy consulting platform provides practical, data-driven solutions tailored to commercial real estate assets.

ASHRAE Energy Audits

We evaluate building systems to identify energy savings opportunities, support capital planning, and prioritize improvements that deliver measurable returns.

Retro-Commissioning (RCx)

Our RCx services optimize existing building systems to improve efficiency, occupant comfort, and long-term performance—without the need for major capital upgrades.

Measurement & Verification (M&V)

We validate energy savings and system performance to support compliance, funding requirements, and long-term operational goals.

Energy Compliance & Benchmarking

We help building owners navigate local and state energy regulations, benchmarking requirements, and building performance standards across key markets.

Energy Incentives & Funding Advisory

Our team identifies and helps secure funding opportunities, including tax credits, grants, and financing programs such as C-PACE, to improve project feasibility and ROI.

A More Connected Approach to Real Estate Consulting

The integration of energy consulting services enhances Hillmann’s ability to support clients across the full project lifecycle:

• Acquisition & Due Diligence – identify risks, opportunities, and energy-related considerations early
• Development & Construction – align design and construction decisions with performance goals
• Operations & Optimization – improve efficiency, reduce costs, and maintain compliance over time

This connected approach allows clients to move forward with clarity, knowing their assets are positioned for both performance and long-term value.

About Hillmann Consulting, LLC

Hillmann Consulting, LLC has been a trusted advisor in Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services since 1985.

We combine technical expertise with a strong understanding of our clients’ business objectives to deliver practical solutions that support informed decision-making across the commercial real estate lifecycle.

About Abraxas Energy Consulting

Founded in 2001, Abraxas Energy Consulting provides expertise in building energy and water efficiency, including ASHRAE energy audits, retro-commissioning, and measurement and verification services.

Their team supports clients in meeting regulatory requirements, achieving sustainability goals, and implementing effective energy management strategies.

Frequently Asked Questions

What is retro-commissioning (RCx)?

Retro-commissioning is the process of optimizing existing building systems to improve energy efficiency, performance, and occupant comfort without major system replacements.

What is an ASHRAE energy audit?

ASHRAE energy audits (Levels 1, 2, and 3) are standardized assessments that evaluate a building’s energy use and identify opportunities for efficiency improvements and cost savings.

How can energy consulting reduce operating costs?

Energy consulting identifies inefficiencies, prioritizes improvements, and helps secure funding or incentives—ultimately lowering utility costs and improving asset performance.

What incentives are available for energy efficiency projects?

Incentives may include federal programs (such as those under the Inflation Reduction Act), state and local grants, tax credits, and financing options like C-PACE.

Start the Conversation

Looking to improve building performance or meet energy compliance requirements?
Connect with our team to discuss how Hillmann’s integrated energy consulting services can support your next project.