We Make It Easy For You To Go Solar!


Instant Savings with Solar + Battery Storage with NO MONEY DOWN


The BEST finance programs in Oahu and Kauai – No Payments or Interest for 2 Years, or 1.49% APR loans


– Generous tax credits – 26% Federal and 35% State of Hawaii

– 25 Year Solar Warranty

– Save on average 30 to 40% on your electric bills

– Solar Increases the Value of Your Home

– Get your PV System with Solar Batteries in one month or less


Our focus is your needs. You can trust STI Solar to build the best solar PV system designed uniquely for you.

    00:06 29 Jun 22
    Awesome experience working with STI Solar Hawaii, they installed Solar PV, AC, and battery backup. The installation went very smoothly and work was high quality, no issues after installing. For Oahu residents I would definitely recommend their services!
    June G.June G.
    19:35 24 May 22
    I stopped by the condo late afternoon after the install was completed, when the condo is usually getting quite hot - and boy, does the attic fan help! Looks great, and is also so quiet. Thank you for a job well done, and for being so conscientious about making sure it was going to be a good fit for that location and also that I was aware of the potential drawbacks. Much appreciated!
    Steve NafshunSteve Nafshun
    05:43 19 May 22
    STI Solar put together an Enphase off grid system for my tiny home on the island of Kauai.Devin and Chris from STI answered all my questions and concerns about my system.Matt & Graham from STI Solar/Kauai installed it and walked me through the instructions and the phone app. They were professional and got the job done. The Enphase system is awesome and meeting all of my power needs.I would highly recommend them.Thank you STI Solar, Roofing & Air conditioning.Steve
    Todd SouthworthTodd Southworth
    00:55 12 May 22
    STI was absolutely fantastic!! Graham came out on time and was a great help. He was very personable and at the same time he was very professional. Graham was super helpful with different opinions I should consider but was in no way pushy.My phone calls to STI were answered promptly.STI is the real deal!!Todd
    Bizcut CBizcut C
    07:02 31 Mar 22
    dana russelldana russell
    17:23 23 Dec 20
    I love my solar and power wall!! Chris was wonderful to work with. He immediately addressed our concerns and was always available to answer questions. It is because of him I give this company 5 stars.
    nathon moorenathon moore
    07:42 24 Jan 18

    “I had a good time with your crew. I have never had a “contractor” work at my house, I would handle any thing myself. My biggest concern was having a “crew of laborer’s” show up to bang out an install, but your crew was very professional and gave me the feeling that we were friends and working together. They did not seem to mind my standing over there shoulder and asking questions, it was a great experience.

    Should you ever need any resources please feel free to call me, I am always happy to help.

    Thank you again Devin and please express the same Chris and you crew.”


    Tony Castaldi | President/RME @ Pacific Boiler & Mechanical In

    Why choose STI? 


    STI Solar has been doing business with homeowners and business owners in Hawaii since 2010.

    STI offers the best cost value with top-tier solar equipment and materials with the best warranties in the industry. 

    The best trained electricians and solar panel installers in Hawaii with the highest certifications in the industry.

    Certified on all the solar equipment we sell and install which means you get a better PV system that lasts longer and produces more energy than our competitors.

    Our solar consultants are the best trained in the industry and will guide you through the process including financing, installation, warranties and of course all the equipment.

    We show up on time at your convenience!

    And finally, we get many complements from our customers about our entire team, and they often recommend us to their friends and Ohana. 

    So give us a call today at 808-664-1052 and you’ll feel the difference!