Home to one of the nation’s largest – and most active – energy efficiency practices, HWG helps clients navigate a wide range of energy efficiency issues and regulations, with particularly extensive experience assisting clients resolve enforcement cases and limit their exposure to related litigation.   

HWG attorneys have a nuanced understanding of DOE criteria and practice concerning management and settlement of enforcement cases. We have been retained for over 50 DOE enforcement cases during the last five years.  In addition to enforcement proceedings, HWG advises clients on efficiency standards, test procedures, and related rulemaking and legislation. We counsel clients on ENERGY STAR rules; FTC energy labeling requirements; and rules of the California Energy Commission and other state agencies. We also represent clients in obtaining DOE waivers and exceptions to address special situations warranting relief. And we represent industry in energy efficiency litigation.

Our recent experience in this area includes:

  • Negotiated favorable settlements in DOE enforcement cases, including ones for central air-conditioning equipment resulting in no imposition of civil penalties.

  • Representing clients in current enforcement cases at DOE, including water source heat pumps, water heaters, room air conditioners, and other products.

  • Negotiated favorable settlement with the Energy Star program over room air conditioners.

  • Represented manufacturers in obtaining waivers from DOE for central air conditioners, room air conditioners, and external power supplies.

  • Represented manufacturers on certification of products to the DOE Compliance Certification Management System (CCMS).

  • Represented manufacturers in relation to products tested pursuant to industry certification and compliance programs.

  • Represented a manufacturer in the Seventh Circuit to support a DOE rule for central air conditioners and heat pumps.

  • Represented a manufacturer in the Fifth Circuit to challenge a DOE rule for walk-in coolers and freezers.

  • Drafted proposed amendments to the Energy Policy and Conservation Act for a trade association.

HWG closely monitors activity and changes in the energy efficiency enforcement landscape and publishes updates to clients when significant matters arise. Our most recent advisory, published on February 1, 2023, can be viewed here. A compendium of HWG’s energy efficiency updates can be viewed here.




At HWG, we’re always looking for smart, talented people to add to our team.


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