Maui's business landscape is poised for a significant transformation as Hawaiian Electric Industries (HECO) embarks on a major infrastructure project: the Waena Battery Energy Storage System (BESS). Announced on December 18, 2025, and slated for construction in January, the Waena BESS signifies a pivotal step towards a more sustainable energy future for the island and presents numerous implications for Hawaii's entrepreneurs, investors, and professionals.
This project, located off Pulehu Road in Central Maui, is a grid-connected 40 MW/160 MWh battery system. Its primary function is to enable the planned retirement of four generating units at the Kahului Power Plant. These older units currently provide power and system stability, but the Waena BESS is designed to take over these crucial roles, storing and dispatching renewable energy sources like solar and wind as needed. This shift is crucial, as Maui County currently sources only 41% of its electricity from renewables, and the state has mandated a move toward 100% renewable energy by 2045 according to Marketscreener.
The implications of the Waena BESS extend to various sectors. For investors, this represents an opportunity in the burgeoning renewable energy market, a key area for growth in Hawaii. Entrepreneurs can explore opportunities in related fields, from renewable energy project development to energy storage solutions and grid modernization services. Moreover, the transition to renewable energy will likely spur job creation, requiring skilled professionals in engineering, construction, and maintenance.
This initiative aligns with HECO's broader strategy to reduce its overall carbon footprint. Beyond the Waena BESS, HECO is also pursuing additional renewable energy projects on Maui, with four contracts for renewable energy and battery projects approved. As Maui Now reported, this move will help the utility retire 35% of its firm generators by 2028. This comprehensive approach is essential for achieving Hawaii's long-term sustainability objectives.
While the project promises multiple benefits, it also presents challenges. The transition necessitates careful planning to ensure grid stability and reliability. Moreover, the Public Utilities Commission (PUC) will play a crucial role in overseeing the project to ensure cost-effectiveness and fair practices. As such, local professionals involved in project management, consulting, and regulatory affairs will find themselves in high demand. The project is expected to be online by 2027.
