Since 1904, Hawaiʻi Gas has been the only franchised gas utility in the state of Hawaiʻi. From the company's early years supplying gas to homes and businesses on O'ahu, we have installed gas pipeline infrastructure and bulk storage facilities, developed a highly skilled, dedicated workforce, and built a fleet of over 60 gas delivery vehicles and over 150 customer service and utility vehicles to across the state.
In 1974, we began operating the Synthetic Natural Gas (SNG) Plant in West Oʻahu using an innovative method to create SNG from a petroleum co-product. For over 50 years, and to this day, Hawai'i Gas has pioneered the use of up to 15% zero-emissions hydrogen in its fuel—more than any other utility company in the nation—providing safe, resilient energy to thousands of homes and businesses. We distribute liquefied petroleum gas, or LPG (propane), to residential and commercial customers throughout the state.
As we look to the future, we are focused on clean energy solutions: in 2018, Hawai‘i Gas was the first in the state to capture and process Renewable Natural Gas, or biogas, from the City and County of Honolulu’s Honouliuli Wastewater Treatment Plant on O‘ahu, which now makes up 3% of the island’s utility fuel mix. We continue to invest in technology that can further diversify and decarbonize our fuel mix, providing residential, commercial, and industrial customers with safe, reliable, and affordable energy.
We take the responsibility of achieving net-zero carbon emissions seriously, and are doing our part to help the state reach carbon neutrality by 2045, our kuleana as stewards of the environment and our island communities.
Read the current Hawai’i Gas sustainability report.
Gas is a critical part of a safe, resilient fuel mix, which supports a stable energy infrastructure and paves the way for Hawaiʻi’s clean energy future.
On Oʻahu, a diverse fuel mix fuels thousands of homes and businesses across the island: our1,100 miles of pipeline network currently accommodates a mix of synthetic natural gas (SNG), renewable natural gas (RNG), and up to 15% hydrogen. That is more utility hydrogen than any other utility company in the nation. Low-carbon emissions propane is part of everyday living for thousands of other homeowners and businesses across the islands.
Founded in 1904 as the Honolulu Gas Company, Ltd., the company has a history of pioneering local innovation. The original Iwilei plant began production converting bunker fuel oil for ships to gas—one of the first plants of its kind worldwide. 120 years later, we have offices on every major island and operations serving utility and non-utility customers throughout the state.
We remain committed to providing safe, affordable energy solutions and creating a better quality of life for our communities.
You can count on knowledgeable, professional, and helpful service from Hawai’i Gas at every step of the customer journey. From our account executives and customer service team to service technicians, delivery drivers, and utility workers, we are committed to providing exceptional service and value.
We strengthen the communities we serve by fostering partnerships with impactful local non-profit organizations. Hawaiʻi Gas supports a diverse set of local non-profits and sponsors events that enhance the vitality of our neighborhoods. Our partnerships are more than just a charitable donations program—they are a force for good that deliver a brighter future for Hawaiʻi.
