What Is an
ASHRAE Energy Audit?

An ASHRAE energy audit is a systematic evaluation of a building’s energy use and the performance of its major energy-consuming systems.

ASHRAE audits follow standardized methodologies that assess:

HVAC systems

Lighting systems

Building envelope performance

Domestic hot water systems

Electrical systems

Control systems and automation

The purpose of an energy audit is to identify Energy Conservation Measures (ECMs) that can reduce energy consumption while maintaining or improving building performance.

ASHRAE defines three levels of audits, each providing increasing levels of analysis and detail.

ASHRAE Level I
Energy Audit

ASHRAE Level II
Energy Audit

ASHRAE Level III
Energy Audit

Benefits of ASHRAE Energy Audits

ASHRAE energy audits provide valuable insights that help building owners improve operational efficiency and reduce long-term costs.

Key benefits include:

Reduced Energy Costs
Energy audits identify opportunities to reduce energy consumption and lower utility expenses.

Improved Building Performance
Audits reveal inefficiencies in building systems and operational practices.

Regulatory Compliance
Many building performance programs require energy audits as part of compliance.

Capital Planning Support
Energy audits provide financial analysis that helps prioritize building upgrades.

Sustainability and Emissions Reduction
Energy efficiency improvements contribute to lower greenhouse gas emissions and improved environmental performance.