Ultimate Offgrid Solar Hawaii

03/03/2026

ATTENTION ‼️

We are EXCITED to announce that the faithful and loyal Ultimate Off-Grid Solar Hawaii will be embarking on a NEW journey in a few months..

We will be RELOCATING to a different location that will help us better serve you here in Hawai’i 💡

Please stay tuned and turn your notifications on for when we release our new location, thank you all for your continued support. We appreciate every single one of you here at Ultimate Off-Grid Solar Hawai’i 🤙

06/06/2025

Hurricane season is here!! Be prepared for the power to go out! Bluetti AC200PL is available here at ultimate off grid. You can use it as a battery back up with or without solar input. Capable of up to 1200 watts of solar panel input. Can also be charged from house or generator power. DM or stop by for prices.

11/18/2024

🔔🎄CHRISTMAS CAME EARLY 🎄🔔

We just completed the installation of this amazing ground mount off-grid system in time for the holidays ! 💡 This system is a game changer for those looking to go green and become energy independent. With its efficient design and high-quality components, it’s the perfect solution for remote locations or areas with unreliable power grids. 🌍 Say goodbye to high electricity bills and hello to sustainable energy! 🌞


grid living

11/08/2024

Does your offgrid solar system look like a bowl of noodles? Have you had multiple “solar guys” , “solar holy people” , or “summit to shore” professionals give you the run around? Give me a call! I’m Jason At Ultimate Off Grid Solar Hawaii. I know the importance of energy independence and I will help you fix your existing system, or even set up a new system. Tell me your needs, and I will get the right system for you.

08/28/2024

I mean, if you really want it done, we can make it happen. Although we prefer powering you home. 😂

08/22/2024

We constantly get asked what options we carry. Here are some quick comparisons on what we carry. Please let me know if you have any questions. 🤙🤙🤙

01/27/2024

Celebrating excellence in Hilo, HI with our Installer Spotlight of the Week! A big thank you to Ultimate Offgrid Solar Hawaii / Mattos Electric LLC for their outstanding partnership and commitment to delivering top-quality installations. 🌐💪

11/20/2023

We were super Blessed with the opportunity to work on on the east end of Moloka‘i. We replaced 4 non working inverters with a single limitless 15k and 2 six stacks of powering 2 rental cabins and the Lodge annex. We were able to use the existing PV array which provides a little more than 17,000 watts of solar input. The professionals at Mattos Electric LLC were able to complete this clean install. And enjoy the beauty Moloka‘i has to offer. Big Mahalo to of Solark and of homegrid for this real time assistance. Also , , and from Mattos electric for the fast and clean work. We look forward to working towards a sustainable future with the ranch and the island of Moloka‘i. Please let me know if you have a home or business that you’d like to take off grid.

08/18/2023

END OF SUMMER SALE. Yup you saw that right. We are giving out deals. From now till September 15th come by Hilo or Kona or give us a call. We will get you what you need to power your home.

03/24/2023

ultimateoffgridsolarhi FINALLY!!! We completed our first two installs at the Mauna Loa Observatory. Wind, rain, clouds and snow made this install challenging. got the job done for us, airlifting workers and cargo from a landing zone on acces road and also from the Kona airport. Phase one consisted of systems. First was a 6 panel 5k1p with a 3 stack this was on the MLO west building. Second system comprised of using 18 of the existing 280 watt solar panels and adding 16 more 400 watt panels. This was to charge an 8 stack of (38.4kw) through a 15k inverter. With the access road cut off by lava in 2022 this was the quickest way to get science up and running. Big mahalo to and (mattos electric)for the cherry install, for supplying us our homegrid lithium battery bank. Looking forward to providing and all other current and future customers with reliable Offgrid electricity. Please let us know if you have any questions.&

02/09/2023