Get matched with top generator install pros in Waikoloa, HI

Q: Should I buy a solar battery or a generator?

• <div><p>If you&rsquo;re deciding between a <a href="https://www.angi.com/articles/solar-batteries-vs-generators.htm">solar battery versus a generator</a> for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don&rsquo;t have many ongoing costs. </p></div>

Q: Can you switch fuel types for a whole-house generator?

• <div><p>In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.</p></div>

Q: Is a home generator a tax write-off?

• <div><p>Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.</p></div>

Q: What size generator do I need for a 2,500-square-foot house?

• <div><p>A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.</p></div>

Q: Can you plug a generator directly into your house?

• <div><p>No, this is extremely dangerous, often illegal, and you should never attempt it. If you connect your generator to your home without a transfer switch, the generated power can backfeed, essentially flowing back into the utility lines. Backfeeding exposes a significant threat of fatalities or harm to you and utility personnel, in addition to jeopardizing the structural integrity of your home.</p></div>

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Verified Reviews for Generator Install pros in Waikoloa, HI

*The Angi rating for Generator Install companies in Waikoloa, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Waikoloa, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 31, 2025

Reviewed in December 2023
They were here the next day to install an electrical line!
Hinokawa Electric, LLC
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Reviewed in September 2023
John is absolutely fantastic. Have used him multiple times for a variety of small projects. He is responsive, communicative, incredibly helpful and just generally a fantastically kind person. Would absolutely recommend for any and all needs.
John Tatus
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Reviewed in May 2023
Oni & 3 of her gals did a whole house deep clean for the first time today. Four hours total onsite work time. Zoned effort floor-to-floor allowed for inspection & fixes. Gals didn't replace furniture where it was originally, but at least it was moved! Generally pleased with results.
Ony'x Cleaning Service
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Reviewed in January 2019
Jake is very knowledgeable Very nice installation
Ohana Cabling
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Reviewed in January 2015
Awful! Had this person (company) not been hired by my General and have the Electrical Permit in their name, I would have fired them early on.
HOME CONVENIENCE CTR
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Reviewed in October 2014
We have used them before so we are very confident. They cleaned up after themselves. They got everything done that we needed done. They did not leave a mess. It generally just went fairly smoothly. Everything is fine. The house is on the market and people say it shows well. It was harder getting...
CertaPro Painters of Eastside
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Reviewed in June 2014
The initial fruit arrangement was not satisfactory. I sent an email via the Edible Arrangements website, which was directed to store 1427 on Melrose Ave. The manager responded immediately, decisively, and generously. She apologized for the unsatisfactory product and explained that all local...
Edible Arrangements
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Reviewed in April 2014
They did a FABULOUS job!!! I work for a general contractor and I am familiar with the trades and they know what they are doing, I would highly recommend them for any job. I was very impressed!!!
Plumbing Strategies, Inc
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Reviewed in September 2013
Service writer was friendly but not smiling much but was generous. Mechanics did a speedy and amazing job and notified me personally.
HILO MAZDA SUBARU
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Reviewed in August 2013
Gene is a very nice and friendly person but he really let us down with the landscape. He failed to include my comments on the plan that was submitted to the association causing unnecessary delays and rework of rock walls. The rock walls were not in his scope but were on the plan. We rarely...
GENE T POWER & ASSOC
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Find Generator install pros in Waikoloa

Olsen Electric LLC

16-2122 Lehua Dr

5.00(

)

Olsen Electric LLC

16-2122 Lehua Dr

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

Olsen Electric: Reputable electrical services provider in Big Island, Hawaii. We specialize in residential, commercial, and solar installations. Services include installations, upgrades, wiring, lighting, troubleshooting, home automation, and emergency repairs. Customized solutions for offices, retail stores, and buildings. Solar services include panel design, installation, battery storage, monitoring, maintenance, and incentives. Experienced electricians prioritize safety, efficiency, and customer satisfaction. Contact us for reliable electrical and solar solutions in Big Island, Hawaii.

"great Kevin also installed my ring spotlight and helped me set it up - He also checked the solar panels and recommended a course of action to get them back online."

Donald A on August 2023

"great Kevin also installed my ring spotlight and helped me set it up - He also checked the solar panels and recommended a course of action to get them back online."

Donald A on August 2023

Ultimate electric LLC

12554 W. Bridger St., Suite 122

2.00(

)

Ultimate electric LLC

12554 W. Bridger St., Suite 122

2.00(

)

Customers say: Super punctual

22 years of experience

We focus on residential electrical service and are opened 24 hrs a day and 7 days a week

My Classic Car Trader LLC

312 Prospect Ave

2.00(

)

My Classic Car Trader LLC

312 Prospect Ave

2.00(

)

53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Generator Install questions, answered by experts

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

No, this is extremely dangerous, often illegal, and you should never attempt it. If you connect your generator to your home without a transfer switch, the generated power can backfeed, essentially flowing back into the utility lines. Backfeeding exposes a significant threat of fatalities or harm to you and utility personnel, in addition to jeopardizing the structural integrity of your home.

The Waikoloa, HI homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Alison Kasch
•
Oct 29, 2025Oct 29, 2025
How Much Does It Cost To Install a Generator Transfer Switch? [2025 Data]
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Elisa Greenberg
•
Aug 14, 2025Aug 14, 2025
How Much Does a Whole-House Generator Cost? [2025 Data]
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Breyden Kellam
•
Oct 30, 2025Oct 30, 2025
How Much Does Whole-House Generator Maintenance Cost? [2025 Data]
Keeping on top of generator maintenance and repairs gives you extra peace of mind as a homeowner. Find out how much regular generator maintenance costs.
Christopher Murray
•
Jul 3, 2024Jul 3, 2024
A Complete Generator Maintenance Checklist
Generator maintenance is key to keeping your appliance in good condition. Follow our checklists to make sure your generator stays up and running.
Melissa Graham
•
Jul 23, 2024Jul 23, 2024
15 Generator Uses for Homeowners
A portable generator can serve several uses beyond its traditional purpose. If you’re looking for ways to put your generator to work, our guide can help.
Tyler Lacoma
•
Mar 10, 2025Mar 10, 2025
How Do Whole-House Generators Work?
Whole house generators are a power alternative that can deal with frequent blackouts and other problems. Here’s how they function.