Industrial & Special Equipment



Electrical power distribution transformers are in nearly every commercial, industrial and government building. Transformers convert the high voltages used by electric utilities to lower voltages required by building equipment. They are on around the clock, providing power and consuming energy 24/7, but are generally out of sight in mechanical spaces and therefore often out-of-mind as well.

Transformers should be replaced before reaching their expected end of life (about 32 years) to avoid unplanned failures and shutdowns. You could see up to 60% in energy savings by upgrading to more modern transformer – a beneficial return on investment!

The Benefits

High-efficiency transformers have many advantages over conventional ones:

  • They waste less energy as heat and noise, which helps reduce HVAC loads for any surrounding space.
  • Typical paybacks are much shorter versus TP-1 transformers.
  • Help earn LEED® certification points
  • Lessens the amount of fossil fuel-generated electricity required, promoting a heathier environment and reducing your building’s carbon footprint.

How Do I Start?

Pick an approved CEA contractor. Then the contract will take the following three steps:

Assess: First, the contractor will visit your business for an assessment of your existing transformers. The contractor will then provide an estimate on how much energy you will save and the amount of rebate Hawai‘i Energy will provide.

Order: Once the assessment is complete and you approve the project, the contractor will order the correct energy-efficient transformer that will suit your needs. At this time, a rebate application and rebate worksheet must be submitted for approval. Contractor can assist with these forms.

Install: Your new transformer will be installed at your convenience.

The University of Hawaii Community Colleges replaced 139 transformers in over 100 buildings at their Oahu and Maui campuses. They are expected to save $271,500 in the first year alone with a reduction of 1,005,577 kWh of electricity, amounting to over $14M in lifetime savings!


Call Hoang Tran at (808) 848-8524 or

Want to become a Clean Energy Ally Contractor?

If you offer transformer installations, join our Clean Energy Ally network and get qualified to offer rebates like this one to your customers. For more information or to sign up, contact Desiree Sumaoang.