NAESCO Accreditation Programs

NAESCO's voluntary Accreditation program is open to NAESCO members.  Accreditation is offered twice annually.  The Spring Accreditation process begins in January and the Fall Accreditation begins in July.

Companies seeking NAESCO-Accredited status must apply to a committee of industry experts who are unaffiliated with any particular ESCO or any other company under consideration for accreditation, and undergo a rigorous examination of their core competencies and business practices. The committee carefully reviews the detailed documentation submitted and consults with selected customer references.

For companies participating in the full accreditation or re-accreditation process, the participation fee has been set at $6,700. Payment of the participation fee does not in any way ensure accreditation will be granted; the fee is being imposed to cover the costs of the accreditation process including the data review and reference checking by independent reviewers.

A $250 non-refundable application deposit fee is due at the time the packet request is made and will, of course, be deducted from the balance of the participation fee which should accompany your completed application. (contact for more information, an application or to arrange payment).


Accreditation Categories

NAESCO offers three categories of Accreditation for companies in the energy service business: Energy Service Company (ESCO), Energy Service Provider (ESP) and Energy Efficiency Contractor (EEC).

Energy Service Company (ESCO) 

ESCOs develop and implement turnkey, comprehensive energy efficiency projects. ESCOs offer performance-based contracts (i.e., contracts that tie the compensation of the ESCO to the energy savings generated by the project) as a significant part of their business. To gain accreditation, ESCOs must demonstrate the technical and managerial competence to design and implement projects involving multiple technologies, including:

  • Lighting
  • Motors and Drives
  • HVAC Systems
  • Control Systems
  • Building Envelope Improvements

ESCOs must also demonstrate the ability to provide the full range of services required for a comprehensive energy efficiency project, including:

  • Energy Audits
  • Design Engineering
  • Providing or Arranging Project Financing
  • Construction Management
  • Commissioning
  • Operations and Maintenance of Energy Efficiency Technologies
  • Verifying Energy Savings

Energy Service Provider (ESP)  

ESPs in most instances will offer all of the services offered by ESCOs (see above), and additionally offer energy supply options. These options can include:

  • Development and implementation of build/own/operate distributed generation, cogeneration or combined heat and power (CHP) projects;
  • Arrangement of firm contracting of energy supply.

Energy Efficiency Contractor (EEC) 

EECs offer some, but not all, of the services of an ESCO (see above). EECs typically concentrate on one energy efficiency measure (e.g., lighting) or one type of service (e.g., engineering or project management), but can offer multiple measures or services. EECs typically work as subcontractors to ESCOs or ESPs.

NAESCO Accreditation


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