Phase 1

EFFICIENCY

Phase Summary:

The County of Maui invested $25 million in energy and water conservation measures across all County departments that will result in $50 million in guaranteed utility and operational savings over the next 20 years.

The resiliency-focused project was approved in November 2022 and includes a 33% reduction of domestic water use across all County facilities, which amounts to a total of 1.7 billion gallons of clean, domestic water saved over the 20-year term, with 86 million gallons saved annually. Additionally, energy conservation measures will result in a 6% reduction of electricity use across all County facilities and a 1,863-ton reduction of greenhouse gas emissions annually, avoiding 6,660 barrels of oil.

Phase I Included:

  • 12,609 Light Fixtures

  • 45 High Efficiency Transformers

  • 3,622 Domestic Water Fixtures

  • 25 Shower Towers

  • 1 Water Irrigation System

  • 8 Onsite Hypochlorite Generation Systems and Energy Efficient Pool Pumps and Controllers

  • 2,444 sq. ft of window film to block sunlight, improve comfort, reduce AC load

  • 4 Electric Vehicles & EV Charging Infrastructure

  • 1 Electric Switchgear

  • 5 HVAC Units

  • 5,751 sqft of New Tile Roof

  • 7 Water Fountain with Bottle Fillers

Utility Cost Savings and GHG Reductions

The table below provides the estimated utility costs savings and annual GHG (Greenhouse Gas) reductions for each County department. The Utility Savings column is inclusive of both electricity and the water/sewer utility savings. The Simple Payback column is calculated as the implementation cost divided by the Total Savings (sum of utility savings plus operational savings).

(*) O&M Savings are for materials or external purchases only; does not include Maui County internal employee labor savings.