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    Alternate Energy

    3.3 (166 reviews)
    Closed 7:30 am - 3:30 pm

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    Services - Alternate Energy

    Circuit breaker installation

    Circuit breaker repair

    Electric inspection

    26 More Services

    Electric installation or replacement

    Electric panel installation

    Electric panel repair

    Electric repair

    Wire installation

    Wire repair

    Electric vehicle charging station installation

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

    Light fixture installation

    Light fixture repair

    Outlet installation

    Outlet repair

    Add to existing system

    Add solar panels

    Add solar panels on roof

    Add solar shingles on roof

    Solar panel cleaning

    Rooftop solar panel cleaning

    Rooftop solar shingles cleaning

    Solar system installation

    Solar rooftop panel installation

    Solar shingle installation

    Solar system maintenance

    Solar system repair

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    Recommended Reviews - Alternate Energy

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    Reviews With Photos

    Debbie R.

    If you use this company, you better hope you never need them to service or stand behind their work. We keep having leaks from where they installed our solar hot water. They came out over a year ago to fix it and with this most recent round of rains, it began leaking again. After leaving numerous messages, I finally got in touch to report the leak. I was told they were slammed and would put me on the schedule and somebody would call me. That was over three weeks ago. I keep trying to find out status of a repair, but nobody ever calls me back. Terrible customer service, A simple courtesy of a phone call would be appreciated.

    Split Air
    Derek Y.

    Finally I got my split air in my bedroom, lots of red tape with the city DPP . I already did my leaving room. Jordan did an excellent job, also the installation person that did my wiring, didn't get his name. All my neighbors went with Alternate Energy with split Air units, some with 3-units. Also, want to thank Vince ...Design set up and Leeland my salesperson. If you need a split air or solar, please call Alternate Energy. Aloha, Derek

    Ryan H.

    I rarely write a review and only take the time if the service is exceptional. If you're thinking of going down the rabbit hole of getting PV Systems (Solar panels, mounting systems, conduits, rails systems, battery backup, installation, inverters, permitting, HECO, HOA, etc.). I jumped all in and headfirst. Here's some background about me. I recently retired from the military, serving over 30 years, this past December 2022. Finding myself with quite a bit of free time to say the least. I conducted a deep comparison and completed way too much research, creating spreadsheets, pie graphs, PowerPoints, Venn diagrams. I sent requests to 10 different solar installation companies and completed 8 different solar estimates. Why did I choose Alternate Energy? Customer Service!!! Here's just a small list of how Alternate Energy stands out ahead of the rest. 1. Locally owned and operated with more than 30 years of experience. 2. Quality of products offered with warranties: (PV panels-REC Alpha Series w/25 years, Inverter Type - Enphase IQ8H, Tesla Powerwall 2, monitoring system (Enphase and Tesla Apps). 3. Customer service reviews from friends, colleagues, Yelp, BBB, and Google were good. 4. Estimate process working with Lionel Ahina (808) 222-4747; lionel@alternateenergyhawaii.com With this large investment in Solar PV System Lionel and Alternate Energy created the proper system for my family's electricity usage. Lionel listened and asked detailed questions on how we live our lives, and how we consumed HECO electricity. Lionel offered detailed explanation of the entire PV Solar system process. He provided me with knowledge, training, project timelines, true expectations working with all the different parties involved (Alternate Energy, HECO, City & County Permitting, and my HOA). He was also willing to share his personal experience in sales for over 40 years. This process into PV can be inundating. Finding the right sales person to not give you the run around, up-sale you a system, quality products, quality installers, warranties, etc... Alternate Energy should be your first call. Yes, I recommend you get other estimates. You will find some sales people are full of sh*t. After you sit down with Lionel and the Alternate Energy Company you will understand. 5. Cost! Everyone's home system cost will be different on estimates. Alternate Energy's price wasn't the highest or lowest compared to others but they offered the perfect cost for my home. After getting 8 estimates ranging from over $43 to just under $33K with additional fees. My "Purchase Agreement" was in the middle. My System Size: 6.00 kW; Panels: 15; Storage: 1 Tesla Powerwall 2. 6. Installation crew. With PV Systems going up all over neighborhoods, you're able to see installation yourself and compare. I was able to ask questions to installers, electricians, homeowners, prior to me making my selection. The installation crew of Alternate Energy is AWESOME!!! Special thanks to the following Chris, Nate, Steve, Sonny, Shannon, Franco. The crew is on time, excellent workers, they have great teamwork, great communication, sense of accomplishment while keeping things light and fun. Chris, Nate, and Steve took the time to explain the entire pre-installation process, provide perspective, communicate required layout changes due to my older home. I appreciated that. Chris takes the time to review the user App on your phone and how the new gateway, generation panel, IQ Envoy works. He explained steps on shutting off the power and what to look for in your PV system production and usage. They are an extremely hardworking group, under extremely hot conditions. They also installed a NEMA plug and Emporia EV Charger 2, 48 amp, which I changed the location a few days prior to installation day. I cannot give enough credit to the installation crew, quality workmanship, start to finish. 7. I agreed to Alternate Energy 17th May 2023, and my Solar PV System was installed on 12th September 2023. The timelines will vary, this timeline was not predicted and to me this is extremely quick. Extremely Satisfied Customer

    misty l.

    As new first time homeowners we've spent quite a bit of time talking to family, friends and researched PV Contractors for our PV needs. Alternate Energy (AEI) stood out above the rest. Thirty years in business and owners comment on Yelp reviews which to me shows good ownership. We immediately felt comfortable with our Project Developer, Miles Yoshimoto. Miles is very friendly and professional and my husband and I liked that he was not "salesy" or "pushy". He patiently helped us figure out what type of system was right for our household usage. We really appreciated Miles responding quickly to our calls and emails. AEl also has a partnership with Hawaii State Federal Credit Union and the finance process was quick and easy! On installation day, my husband, who works in the construction field, said it was a "Quality Install". He appreciated that the installers and electrical crew took the time to explain every step and did a great job cleaning up after. I had to get their names and give them a shoutout so mahalo to Richard, Jade, Alden, Ronald, Reggie & Trey! We have enjoyed using the Tesla app to view our electric usage and how the panels are saving us money! And we have already referred AEI to our co-workers, family and friends. We made the right choice.

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    Ask the Community - Alternate Energy

    Did you guys move from mapunapuna?

    Aloha! Yes, we moved to the Pearl City Industrial Park in 2019. 96-1276 Waihona St #114. Our phone # is still (808) 842-5853

    Do you guys repair EV car charging stations? The station is fine, but the nozzle is broken. I have a Chevy Volt and the Charger is a Voltec. I don't want to buy a whole new charger.…

    Aloha, Jeff, Mahalo for your question! Unfortunately, we're not offering those type of services at… Read more

    Don’t See Your Question? Ask Away!

    Review Highlights - Alternate Energy

    Jeff Lum helped us with the many steps in starting the process of investing on a PV system and AC system.

    Mentioned in 7 reviews

    Read more highlights

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    HI POWER Solar

    HI POWER Solar

    (130 reviews)

    I chose this company based on their previous reviews, their family owned small-business model, and…read moretheir personable communication. When I first contacted them, they were very responsive, came out to our house multiple times to check it out, and even offered very reasonable and competitive pricing. Installation had a few hiccups because our house is old, weird, and probably very hard to work with, but we're very happy with our system. All the kinks that the team had to work through were fixed/solved in a very timely and quality manner. The only problem we had was getting updates between signing our agreement and installation. Understandably we waited pretty long to hear anything about installation due to the overload all solar companies were experiencing due to the federal tax credit being cut next year. Our drawings were back logged, not because of HI Power, but because of the approvals they were waiting for. But I had to reach out to multiple people at multiple times before someone could explain this to me. This really stressed us out for a bit that no one was getting back to us, but once they explained all the issues they were facing, everything worked out perfectly. I would still like to recommend this company compared to other bigger companies based off of my parent's and grandparent's experiences.

    Big Mahalo to the guys at HI Power Solar for installing my PV panes. Your crew had my PV panels up…read moreand running on day one, just in time before rebates ended. Shutout to Electrical Forman Rico, Electrical Helper Josh, Roof lead Kaipo E and roof Helper Ezekiel.

    Eco Solar

    Eco Solar

    (206 reviews)

    Installation was great,as scheduled.But,there was no follow up by my salesman (Matt H.) or Eco…read moreSolar to make sure system was up and running and understood Tesla system app.. Been 4 months, haven't heard from them,since. GJ 4/20/2026

    As luck would have it, my previous updated review of Ecosolar would not be my last…read more After converting my system from running off of Sunpower/Enphase's microinverters to Tesla's inverter from my new Powerwall Plus, I had some worry about what might happen with a single point of failure. Midway through summer, I found that out when my entire system went down when it failed. I reached out to Chris from Ecosolar right away and let him know that I was having a problem and he started troubleshooting immediately. After some investigation it was determined that the inverter had to be replaced and after waiting for Tesla to ship out the part, it was replaced in a timely manner. I was back up and running again, until December when my system started acting up again, this time seemingly having a problem with one of the batteries. I contacted Chris again and let him know that I was having a problem again, and although communication was rough with the end of the year approaching and federal tax credits expiring, I had a service appointment scheduled for the first week of January. On their site visit, it was determined that my new Powerwall Plus itself had gone bad. They were able to start the RMA process with Tesla and told me it would be replaced, possibly with a new Powerwall 3, because the Powerwall 2 was end-of-life and not in production anymore. That meant they would also have to replace my original Powerwall 2 as well with a new Powerwall 3 expansion pack. They hoped optimistically that I wouldn't have to wait too long for the replacement. Fast forward to April and it did take longer than expected for Tesla to send them the replacements but the good news was that Tesla did indeed replace both of my Powerwall 2 units with a new Powerwall 3 and expansion. This did require much more work on the part of Ecosolar to retrofit than just unplugging the old setup and swapping in the new one, for my particular case, and I appreciate the extra lengths they had to go through versus just having to swap out the old if Tesla had just sent a Powerwall Plus replacement instead. I had been down for a few months but the upside is that I have a brand new set of batteries now in 2026. I would say my solar journey has been rougher than I expected it to be. Parts have failed. Parts have been replaced under warranty. Yes, I've experienced periods of time where my PV system has been offline due to failures, and had to deal with big HECO bills until those failures were resolved. I've had two Powerwalls replaced under warranty in the last 7 years (technically 3 since they swapped my still working Powerwall 2 with a new expansion pack), and an inverter. I had problems with weird glitches with power that kept tripping the Powerwall into thinking that I was experiencing a power outage, that Ecosolar's technician helped to diagnose and find out was actually a problem with HECO's underground service feed into my home (which was another years long adventure with HECO altogether). Sunpower's PV control system got booted offline and needed to be reset remotely. Each time I've had a problem I've contacted Ecosolar and each time they've addressed it to the best of their ability. Yes sometimes it takes time to get things resolved, and it can be hard to be patient. Tesla seems to take awhile to get things sent here but they have always come through thus far too. My additional cost for all of their warranty work and service over all this time has been ZERO. Every single problem I've ever had has been addressed. It's great if you can invest in something like this and never have a problem, but I understand that things happen when you're dealing with new technology, and it sucks but sh*t happens. But when you do invest in something as expensive as solar, it's good to know that I've invested with a company that takes care of it's customers.

    Independent Energy Hawaii - Teamwork at its finest! Our experts setting up Tesla Powerwall monitoring for seamless energy control.

    Independent Energy Hawaii

    (60 reviews)

    Very responsive to our requests. Got the job done quickly and transparently. The prices are very…read morecompetitive. I have looked at 5 different companies for friends and family and I also recommend Independent Energy.

    I was in a bit of a bind as my Tesla Powerall had a system fault and stopped working. To my luck…read morejust as this happened the original installers was undergoing bankruptcy and because my system was paid off it was not purchased by the new company. I was left with no service provider. I called a couple of companies and they either couldn't provide service or the information given was really no help. I called Independent Energy and Sean-Daniel listened to the issue I was facing and provided excellent care. There were a lot of hoops to clear but Sean-Daniel guided me through the whole thing. Then to top it off just as the Tesla battery was finally ready for replacement, my inverter stopped working. Through our communication, I simply asked if that was also something they could help me with also. I simply had to provide some information and they took care of the rest. I was kind of left on my own with the previous company, but Sean-Daniel and Independent Energy really guided me through the replacement process and took care of me even though they were not the original installers. If you ever get into a situation similar to mine or looking to get any kind of solar service, I highly recommend Independent Energy of Hawaii1

    SolarTech Industries

    SolarTech Industries

    (63 reviews)

    Downtown

    We had a great experience working with Julian and the Solartech team here on Oahu. From the start…read moreJulian didn't come across as a typical sales rep at all -- he felt more like a knowledgeable industry expert who offered thoughtful, objective opinions about different technologies and brands. Before meeting him, I spoke with two other solar companies. One rep came on extremely strong and the meeting felt very sales-driven and impersonal, which made it hard to trust the information being presented. The other rep seemed to still be in training and had to run nearly every question through a senior colleague. Working with Julian was a relief. He's clearly experienced and communicates in a smart, casual, and very approachable way. We also had a great experience with Jelly and Brandi from the Solartech administrative team--they were easy to work with and helped keep everything moving smoothly. Solartech's digital quote platform made comparing options and selecting our plan simple and easy to understand. We ultimately decided against Tesla batteries after learning about potential overheating issues, which can be a concern in a place as hot as Hawaii. We went with Enphase we're happy with our choice. The installation team was excellent as well. Nainoa, the lead electrician on our project, is a total pro--easy to talk to, great at problem-solving, and he helped us quickly figure out a battery placement challenge. He completed the electrical work in just a few hours. During the panel installation, the crew accidentally drilled through part of our roof which caused a small leak, but they responded immediately and repaired it right away. Everything was patched up and looks good as new. We really appreciated how quickly they addressed the situation. Post-purchase support has been just as strong. I had some questions about how our system was pulling power from the grid, and Julian took the time to explain everything. It turned out to be more of a settings preference than an issue. He followed up with helpful explainer videos and even called a week later to make sure everything made sense. Overall, we're very happy with the experience and appreciate the professionalism, transparency, and support from the whole Solartech team.

    Solar Tech did a phenomenal job on my house and I would highly recommend their services…read more I have been in commercial construction for 20 years and have managed several large projects, so I was a tough critical with every company I interviewed. From the initial quoting process through installation, I was thoroughly impressed with their team! I got quotes from three different, highly-rated vendors... Solar Tech was not only significantly lower, they were the best value. Cisco had a great technical understanding and was a phenomenal communicator, working hard to ensure they were providing a system that best fit our needs. They provided multiple viable solutions for financing the project and did a great job working through permitting in a timely manner. Their install team, Nainoa, Nakoa, Asa, Wes, Kevin and Sean absolutely crushed it on the install. They were professional, knowledgeable and did not mess around... installing a 22 panel system with 2 Tesla Batteries in under 6 hours. I would highly recommend their services for anyone considering solar on your home.

    Alternate Energy - solarinstallation - Updated June 2026

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