Ameresco, Inc. announced the completion of the installation of new energy efficiency and maintenance advancements at OUTRIGGER Kauai Beach Resort & Spa as part of a 15-year Energy as a Service (EaaS) agreement. The partnership allowed the oceanfront resort to update and replace its energy-related equipment without up-front capital. The $15.5 million energy efficiency renovation was designed and constructed by Ameresco in several phases over the last two years.

Key upgrades included replacing 350 guest room fan coil units with new smart thermostats, a new central chiller plant with added redundancy for air conditioning, new hot water return distribution for reduced hot water wait times, and new electrical transformers. It also included adding a new building automation system to monitor and control temperatures in guest rooms, kitchens and ballrooms complete with variable speed capabilities for utility savings during periods of partial occupancy. Additionally, the exterior lighting throughout the resort has been comprehensively modernized with energy-efficient LEDs.

Continuous monitoring provides up-to-date information of the condition of all building components, for comprehensive asset management software. The new equipment will continue to be maintained and operated by Ameresco for the life of the EaaS agreement. Construction and the installation of new efficiency upgrades at OUTRIGGER Kauai Beach Resort & Spa began in October 2021 and reached full completion in December 2023.