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Alternate Energy

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

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Solar panel cleaning

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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… 

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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Grand Hawaii Electric

Grand Hawaii Electric

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I recently hired Grand Electric Hawaii to install and upgrade smoke detectors for my business to…read moreinterconnected ones. Johny was fantastic to work with from start to finish! He was prompt, honest, & completed the job efficiently. He takes time to finds solutions to problems. If you are looking for reliable, professional electrician on Oahu. I highly recommend Grand Electric Hawaii and look for Johny. 5 -stars. :)

Amazing company and owner. Long story short, wasn't getting any power from the grid (HECO)…read more Luckily, I have a PV solar system that was powering my house for 5 days. Requested HECO to come out and discovered the 100 amp breaker melted the plastic behind it and basically fell apart. Requested an electrician on Memorial Day and Johny responded very quickly and came out right away. Obviously checked the reviews prior to requesting him. Anyways, by just providing him a picture he could tell just the breaker needed replacing instead of the whole panel, which would've costed thousands. Johny is super knowledgeable and friendly. He ended up checking all my breakers and if there were any overload. Basically made sure everything is safe and up to par. Got everything done within an hour including having HECO come back to reenergize my house. Everything is back to normal again. So thank you very much Johny and Grand Hawaii Electric. I will for sure be using their services again if necessary. Check the other reviews. You wont be disappointed.

Sparky and Sons

Sparky and Sons

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I had some small projects that i needed an electrician for. One was to remove a ceiling fixture and…read moreold smoke detector but it was in the middle of the stair case and roughly 15 feet high in an awkward angle. In its place i wanted to install track light above the railing to make it easy to switch out the lights. The second and third was to install an outdoor flood light and from there an outdoor weatherized outlet. Contacted Sparky and Jerry responded quickly. I provided pictures and such and when I was ready we did a site walk. He shared options of what we can do as well shared any issues. Quoted me at the end of the day and schedule the job a few days later. The day of, Sparky and Sons (total 3 of them) came in and put together a safe scaffold to remove both light fixtures and smoke detector and covered with a blank plate. Then installed the track lighted to my direction. on the outside, flood light, outdoor weather switch, and outdoor weather outlet was installed to my direction by tapping into an existing outlet in the kitchen and running it outside. They did a great job and was very professional as Jerry was instructing his son's ensuring everything was visually pleasing. One thing i truly respected was the clean up as electricians are known to leave "poop" (wire ends) all over the place. Jerry ensured this was cleaned up and threw away all trash leaving it as good or better than when they started. They did a great job, price was very reasonable, and the end result i am very happy with.

Came out on the same day and did an amazing job fixing our wiring for a light switch. Definitely…read morerecommend!

Alternate Energy - solarinstallation - Updated July 2026

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