About Us > Case Studies
Care & Customized Solutions
Eco Solar develops Complete Home Solar Systems based on your energy use and the Solar energy available in your area. We carefully evaluate your home’s “sun zone” and work with you to design a system that maximizes the solar energy available. We also review your utility bills to understand your energy consumption and needs – creating a customized solution to meet both your location and your lifestyle.
Honolulu
Kurt F., a homeowner in Honolulu, needed a solar solution for his modern architectural home after experiencing monthly electricity bills of $450. After hearing about Eco Solar Hawaii from several friends who had positive experiences with the company, Kurt reached out for a quote, expecting premium pricing but was pleasantly surprised to find their rates competitive with larger companies on Oahu.
Our solar consultant, Michael French, designed a custom solar solution featuring the Tesla Powerwall 3 with Powerwall 3 expansion to meet Kurt’s energy needs while complementing his home’s modern aesthetic. This installation showcased Tesla’s latest energy storage technology with a clean, minimalist design.
In January 2025, our installation team led by Gavin Hamasaki installed:
- 20 Maxeon 440 panels, generating 8.8 KW DC
- 1 Tesla Powerwall 3 with integrated solar inverter
- 1 Tesla Powerwall 3 expansion unit
- Tesla Backup Switch for whole-home coverage
With his new integrated solar and battery system, Kurt is expected to save:
- 1,180 kWh per month
- $5,500 in annual electricity bill savings
- Expected payback period of just 5 years
Kurt opted for a cash purchase and took advantage of several financial incentives, including $26,000 in tax credits. The Powerwall 3 expansion unit provides additional energy storage without requiring another complete Powerwall 3, eliminating unnecessary equipment costs while maintaining full functionality.
Our efficient team completed the installation in just one day, with the entire project timeline under a month from start to finish.
I reached out to Eco Solar because a couple of my friends had used them for their PV install in the past and had great experiences with their customer service. I reached out to them for a quote on my project expecting them to be more expensive, but was pleasantly surprised to find that they were very similar in pricing to the bigger companies on Oahu. I coordinated the project with Mike French who was very responsive to my texts throughout the project. Overall I ended up going with Eco Solar due to the longevity of the company, top of the line equipment, similar prices to the market, and their exceptional customer service. Another bonus was that they completed the full install in one day, and the overall timeline for the completion of the entire project was less than a month.
– Kurt F.
Kaneohe
Douglas C., a homeowner in Kaneohe, reached out to Eco Solar Hawaii after being shocked by the high costs of his Oahu utility service. Having previously used solar on Maui, Douglas was eager to offset his energy costs in his new home. He chose Eco Solar Hawaii based on a strong recommendation from his home inspector and our excellent online reviews.
Our team, led by Matt Householder, designed a custom solar solution featuring the cutting-edge Tesla Powerwall 3 to meet Douglas’s energy needs. This installation was particularly exciting as it was one of the first Powerwall 3 installations on Oahu, part of our pilot program showcasing Tesla’s latest energy storage technology.
On May 7th, 2024, we installed:
- 16 Maxeon SPR-MAX3-430-R panels, generating 6.88 KW DC
- 1 Tesla Powerwall 3, providing 13.5 kWh of energy storage capacity
With his new integrated solar and battery system, Douglas is expected to save:
- 990 kWh per month
- $396 in total monthly electricity bill savings
- This includes $140 per month in optimized savings from the Tesla Powerwall 3
Douglas took advantage of several financial incentives, including the 30% Federal tax credit, 35% State tax credit (capped), and Maxeon Preferred partner discount. He also used Sungage financing to make the switch to solar more affordable.
Our efficient team completed the entire installation in just 4 hours, impressing Douglas and his wife with their speed and professionalism.
Matt came over and did a great job of laying everything out for us, giving us our financing options, and being upfront about our needs. We really appreciated that transparency and forward honesty. I’m a tech nerd myself. One reason I opted for the Tesla Powerwall 3 is because I’ve been following what’s been going on there. Knowing it’s the latest and greatest, I was eager to be part of the pilot program. Now that it’s installed, I can check out what’s going on within the app. It’s really cool to see where the power generated is going and when we pull from the grid, almost in real time.
– Douglas C.
Honolulu
Howard M., a homeowner in Honolulu, was struggling with monthly electricity bills that reached $1,300. After receiving a referral from one of our satisfied customers, Howard reached out to Eco Solar Hawaii for a solution. Our solar consultant, Michael French, assessed Howard’s energy needs and designed a customized solar system to maximize his savings and efficiency.
We installed a state-of-the-art system featuring 46 Sunpower SPR-M440-H-AC panels, generating 20.24 KW DC, and three Tesla Powerwall 2 batteries with a total storage capacity of 40.5 KWH. Our team even devised an innovative solution to triple stack the batteries near the electrical meter, ensuring a clean and efficient setup.
With his new integrated solar and battery system, Howard is expected to save 3,400 kWh per month, equivalent to $1,360 in total savings at $0.40 per kWh. This includes $420 per month in optimized savings from the Tesla Powerwall 2 batteries, which store excess energy for use during peak hours or power outages. Howard took advantage of available financing options and incentives, including the 30% Federal and 35% State (capped) incentives, making the switch to solar more affordable. Today, Howard enjoys significant savings on his electricity bills and peace of mind knowing he has reliable backup power.
Everything was done to a T, from permit to install. Michael went above and beyond. With the batteries and solar, you don’t have to worry about power outages. Everything just clicks over to the batteries, whether it’s 5 minutes, 10 minutes, or night time – everything just works.
– Howard M.
Hoopili
Justin and Tammie Drake, new homeowners in the Hoopili subdivision of Ewa Beach, met our team member Ben during a site assessment on a neighboring property. Ben collected their information and completed a site assessment that same day. Michael, one of our consultants, followed up to guide them through the process.
Despite the challenges of designing a system for a brand new home with no prior energy usage history, our extensive experience in Hoopili allowed us to create an accurate and efficient design. We installed 16 Maxeon 430 solar panels and a Tesla Powerwall+ with a backup switch, ensuring whole-home coverage and energy independence.
Our professional and friendly crew completed the installation in just five hours, impressing the Drakes with their workmanship. With their new integrated solar and battery setup, which includes 16 cutting-edge Maxeon 430 solar panels and a Tesla Powerwall+ with an integrated 7600-watt solar inverter and backup switch, the Drakes are expected to save an estimated $336 per month, or $4,032 annually, on their electricity bills. This total savings includes $140 per month in optimized energy use from the Tesla Powerwall+, which provides 13.5kWh of storage capacity and enables the Drakes to maximize their solar investment. With these savings, the Drakes can expect a payback period of just 4.7 years for their investment in clean, renewable energy.
I cannot believe that within 10 days of meeting we now have solar installed. The team of install guys were swift, respectful, professional and friendly. I highly recommend Eco Solar and if the stars went higher than 5, they’d get it! Mahalo Nui Loa!!!
– Tammie Drake
Kapolei
Raymond Camacho first met the Eco Solar team at Oahu’s BIA home show. He had already done his research, and had determined that a Solar system would work best for his home. He had already had estimates from a couple of our competitors, and was holding off on installation due to the price. Ultimately he chose us not only because we were the more affordable option for installing the exact same products, but because we do the work ourselves (we never subcontract). Since Raymond’s Kapolei home sits in a better sunshine zone than most Honolulu homes, his system required fewer panels – and now saves him well over $3,000 a year!
I knew that other companies provided the same products, but I chose Eco Solar because of their professionalism and the peace of mind of knowing that all of the work was provided by their employees (not subcontractors). I feel good knowing that I’m helping the environment and seeing a $17 electric bill every month doesn’t hurt.
– Raymond Camacho
Mililani
Sean Bradshaw had been shopping around for a PV system to help offset energy costs for his young family and decided to call us based on the recommendation of a co-worker. Because he wanted the peace of mind with a great warranty, he chose a Eco Solar system. Before installation, the family’s annual energy usage was 8400 kWh (or about $3,024). Today he has no electricity bills!
I would have to say Eco Solar’s team made the process easy and simple. They were able to answer all of our questions and concerns. The overall project from the signing of the contract to city & county permit and association approval to the actual installation of the PV system was a breeze. Eco handled it all and kept us informed throughout the project. I can’t say enough about how much we’re enjoying our system and the savings it’s providing. – Sean Bradshaw
Pearl City
Douglas Chu heard about Eco Solar through a previous customer of ours. As a recent retiree, he wanted a system that would require low maintenance while delivering high performance for years to come. We installed a system that maximized the Pearl City sunlight to deliver over 8900 kilowatts of energy per year – eliminating Douglas’ annual power bills of $3,228.
The whole process with Eco Solar, from start to finish, ran very smoothly. The crew was nice and professional. We are very satisfied with the installation and savings. – Douglas Chu
Makakilo
Mike Rush was looking to immediately save money on his electric bill without having to borrow money or dip into savings for a system purchase. With a lease, he was able to cut his electric bill in half with no out-of-pocket expenses. Now, Mike is enjoying the benefits of the world’s most efficient solar panels and is on track to save over $63,000 over the next 20 years.
I was paying about $250 a month, now I’m paying $125. I basically locked in my monthly electric payment at $125. Effectively, it’s about half. It’s kind of a no-brainer! – Mike Rush