Grand Solar

At Grand Solar, we're proud to have been a leader in the design, installation, and service of solar thermal systems in Hawaii for over 30 years. Our commitment to excellence has earned us an A+ rating with the Better Business Bureau, and we're proud to be a member in good standing with the Hawaii Solar Energy Association.

Our History

Established in 1980 and incorporated in 1985, Grand Solar has consistently been at the forefront of solar technology in Hawaii. Our original owner, John Grandinetti, is still actively involved in all residential and commercial solar system installations, ensuring that every project meets the highest standards of quality and customer satisfaction. We've built a reputation for fairness and consideration, with the Regulated Industries Complaint Office (RICO) having no record of complaints filed or legal actions initiated against us.

Our Services

At Grand Solar, we offer a range of solar solutions for residential and commercial customers. Our solar hot water systems, including the innovative BlazingTubes system, provide a reliable and cost-effective way to heat water using the power of the sun. Our conventional pump solar hot water systems, thermosyphon solar hot water systems, and residential PV systems are all designed to provide maximum efficiency and performance. We use only US-manufactured components, and our industry-leading warranties give our customers peace of mind.

Why Choose Grand Solar?

With decades of experience and a passion for solar technology, we're the go-to choice for homeowners and businesses looking to harness the power of the sun. Our expertise, combined with our commitment to customer service, makes us the perfect partner for your solar project. Whether you're looking to reduce your energy bills, increase the value of your property, or simply do your part for the environment, we're here to help.

Our Mission

At Grand Solar, our mission is to provide high-quality, affordable solar solutions that benefit our customers, our community, and the environment. We believe that solar energy has the power to transform lives and create a better future for generations to come.