Renewable Energy

Technology Disruptor

Supported by it’s shareholder Tokyo Electric Power Holdings, Incorporated (TEPCO) one of the largest power utilities in the world.

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Hybrid Direct Current (DC) Technologies

Turnkey Solutions

Microgrid with Solar, Batteries, and Energy Management Systems (EMS)


Power Purchase Agreement (PPA) and Equipment Lease


Serving the Community Since 1979


Adon’s history can be traced back to 1979 when the founder started Adon Construction. The Company has been a successful general construction firm which pivoted to solar engineering and procurement in 2007. The company completed many commercial solar facilities in the state of Hawaii.  In 2015, Adon focused on direct current (DC) technology development, microgrid development and financing. In its new pursuit, the firm has launched advanced batteries (PowerBox), hybrid solar heat pumps (SunChillers) and bi-directional mobile battery system (evPowerBox).




Making an Impact Across the Globe


Adon designs and integrates commercial and industrial battery storage systems in conjunction with its renewable energy facilities. The team is passionate about protecting the environment and reduce our dependence on fossil fuels. The launch of its high-efficiency SunChillers solar heat pumps aims to greatly reduce energy consumption. The development of PowerBox, a ferrous metal based battery technology, aims to get rid of the cobalt based toxic batteries that are common among the leading brands.   

A dedication was held in November 2021 at Kalaeloa for the completion of Kamaʻokū, a village of 37 tiny homes for our koa kahiko (veterans) and homeless individuals on the leeward coast. We are very proud of the Adon team for donating over $100,000 in materials, trenching, electrical / HVAC work and countless hours of engineering for Hawaiʻi first master-planned Kauhale for homelessness. Together, we will rise up to the challenge and build a better community. 

Turnkey Solutions and Services

Custom Design
Our in-house engineering team can customize solutions to meet your specific goals. Adon can also work with you to gather and analyze data and help plan long term energy decision-making. Adon designs both renewable energy systems, components, and software as well as maintains complex systems throughout their lifespan. This broad perspective gives our team a unique depth of technical expertise. 
Throughout our decades of construction experience, Adon prioritizes safety and quality. Our team has delivered on new construction as well as coordinated retrofits with existing businesses that minimize impacts to ongoing operations.  Adon is a bonded and insured general contractor, a trusted name since 1979.

Energy Management System
The Adon PowerBox is equipped with a cloud-based energy management system (EMS) that can control the operation of the battery and provide a monitoring platform of the system operation. The EMS communicates with the battery management system (BMS), power conditioning system (PCS) and DC-DC converter to charge the PowerBox and discharge efficiently and safely. It provides the necessary data to maintain and troubleshoot the system.
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