3 Types of Energy Audits

Energy Audits

In today’s business landscape, energy efficiency isn’t just a buzzword; it’s an essential aspect of sustainable business practices. Companies across various industries are increasingly recognizing the importance of being energy-efficient to reduce operating costs. Energy audits, therefore, have become a strategic tool for reducing operational costs and minimizing a business’s environmental impact.

At Commonwealth Energy Group, LLC, we specialize in conducting thorough energy audits tailored to the unique needs of your business. Our experience in energy-efficient upgrades and analysis ensures that our clients receive the most effective and industry-specific solutions. Today, we’ll share the different types of energy audits and their significance for business owners, corporate executives, office managers, and small business owners.

What are Commercial Energy Audits and How Can They Help?

An energy audit is a comprehensive assessment of a facility’s energy use, aimed at identifying opportunities to reduce energy consumption and improve efficiency. This involves evaluating various energy systems, from lighting and HVAC to production processes and office equipment.

By understanding how energy is used and where waste occurs, businesses can implement changes that lead to substantial savings and environmental benefits.

Different Types of Energy Audits

1. Preliminary Audit

A Preliminary Audit, also called a simple or basic audit, is the initial step in understanding a facility’s energy usage. This audit helps determine the facility’s energy consumption and offers a starting point for identifying areas where energy efficiency improvements can be made.

The goal of a Preliminary Audit is to gather data and assess the overall amount of energy being consumed by the facility. This type of audit involves a high-level review of energy data and a brief on-site inspection to identify immediate energy-saving opportunities. Think of it as a quick health check for your energy systems.


  • Quick and cost-effective
  • Provides a snapshot of energy use
  • Identifies obvious areas for immediate improvements

Example Use Cases:

  • Small offices looking to kickstart their energy efficiency journey
  • Retail stores aiming to reduce energy costs with minimal investment
  • Warehouses seeking basic insights into energy consumption patterns

2. Walk-Through Audit

A Walk-Through Audit, also known as a general audit, involves a more detailed examination of energy use compared to a preliminary audit. During this audit, energy professionals conduct a walk-through of the facility, inspecting systems and equipment and collecting more detailed data.


  • More comprehensive than a preliminary audit
  • Provides actionable recommendations
  • Identifies both short-term and medium-term energy-saving measures

Example Use Cases:

  • Medium-sized businesses like restaurants or hotel venues need detailed insights
  • Manufacturing plants seeking to optimize energy-intensive processes
  • Corporate offices looking for a balance between cost and efficiency

3. Comprehensive Audit

The Comprehensive Audit, also known as an investment-grade audit, is the most exhaustive type of energy audit. It involves a detailed breakdown of energy use, including monitoring and data logging over a significant period. This audit provides a deep dive into every aspect of energy consumption, ensuring that all potential savings are identified.


  • In-depth and highly accurate
  • Provides a thorough understanding of energy use
  • Identifies long-term energy-saving opportunities and investments
  • Facilitates the development of a detailed energy management plan

Example Use Cases:

  • Large corporations with complex energy systems
  • Hospitals and educational institutions requiring precise energy management
  • Industrial facilities looking to make significant long-term energy investments

Benefits of Energy Audits

Conducting energy audits offers advantages for businesses of all sizes and sectors. Here are some key benefits:

  1. Financial Savings: Energy audits help pinpoint inefficiencies and recommend cost-effective measures that can lead to substantial energy cost reductions.
  2. Environmental Impact: By optimizing energy use, businesses can significantly reduce their carbon footprint, contributing to broader sustainability goals.
  3. Enhanced Operational Efficiency: Improved energy management leads to better performance and reliability of energy systems, reducing downtime and maintenance costs.
  4. Compliance and Incentives: Many regions offer incentives and rebates for energy-efficient upgrades. Additionally, staying compliant with energy regulations can avoid penalties and enhance corporate reputation.

Contact Commonwealth Energy Group, LLC to Schedule Your Energy Audit

In the fast-evolving world of business, staying ahead requires not just smart strategies but also sustainable practices. Different types of audits, from quick wins to long-term efficiency, are important for optimizing energy use.

At Commonwealth Energy Group, we provide specialized energy solutions that meet our clients’ individual needs. Our team of professionals dedicates itself to helping businesses enhance their energy efficiency, reduce costs, and achieve sustainability goals.

Ready to take the next step towards a more energy-efficient future? Contact Commonwealth Energy Group, LLC today to schedule your energy audit and start your journey towards smarter energy use.