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Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
40
)
Fixed Generator - InstallGenerator - Install - For Business

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I got an estimate from another company, but once they place the generator I then needed to contact someone else to connect it to my gas line. Generator Supercenter completed everything. Plus, they contacted the gas company to schedule replacement of my old meter."
Generator Install
18KW Installation
Preparation for the day
Photos
Response time2 days
Response rate100%
91 neighbors recently requested a quote
Payne Electrical Contractors, LLC
4.8(
75
)
Fixed Generator - InstallPortable Generator - Install

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I could not have been more pleased with Payne Electrical! From the scheduling to the installation, everyone I worked with was incredibly professional and made the whole process easy. I had two ceiling fans and a light fixture installed. The two electricians that came to my house were prompt and incredibly courteous, and very thorough in their work. They were also super kind about my small dog that wanted to keep barking at them... I would highly suggest this company to anyone in the metro Boston area, and will definitely be calling them for any future electrical needs!"
Response time6 hrs
Recommended by100%of homeowners
Generators of Maine, Inc.
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2014

Free estimates

Offers commercial services

"Generators of Maine just completed the installation of a 14kw generator with parallel transfer switches, to protect 2 separate metered panels at a rental property that I own. I didn't even know that this was possible, until Doug Sawyer suggested it. The incremental cost of protecting the additional panel with the parallel transfer switch arrangement was a fraction the cost of an additional generator and transfer switch. Throughout the job, Doug and his crew were awesome. I am a terrible snoop who enjoys technology, so I hung around just watching and learning. They didn't seem to mind my presence and were friendly and informative through out the install. Every aspect of the job was 100% top-notch. Doug also managed to under bid his nearest competitor on every component and aspect of the job, including the annual maintenance contract, which I deemed to be worth the $$$. I highly recommend Generators of Maine."
Response time4 hrs
Recommended by100%of homeowners
Avatar for IQ Electric
IQ Electric
5.0(
14
)
Portable Generator - Install

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"Prompt and courteous service. Job was completed on time and for the exact price quoted. Itâ s a pleasure to have such a trustworthy company to deal with. I highly recommend for any electrical needs you may have."
Pendent Light
Ceiling Fixture
Reay Fun... and Bizzare?
Family Room Lighting Project
Backlit Decora Switches

+2

Response time6 hrs
Response rate95%
Recommended by83%of homeowners
Avatar for Power R Point, LLC
Power R Point, LLC
4.4(
19
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Jim and his team were great to work with on my generator install. I found the entire team at Power Point to be helpful and professional and the installation went as promised. I would certainly recommend them for any generator installation, maintenance or repair. They know what they are doing."
20RESD Install
Kohler 20RESD Install
Local Restaurant
20kW Kohler Installation
Response time2 days
9 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Casco Bay Generators LLC
Casco Bay Generators LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - Repair

Serving New Gloucester, ME and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

We are proud to be a Veteran-operated, Titanium Level Kohler® licensed and insured generator dealer. We teamed with Kohler® to give you peace of mind that you are working with a dealer-trained, factory-authorized provider to handle these appliances. We offer all Kohler® and Generac warranties and maintenance services. These are the industry’s best products for backup protection at your home or office.\nWe are also proud to work with Efficiency Maine, offering discounts, rebates, loans, and other initiatives to promote high-efficiency equipment that help Maine’s homes and businesses reduce their energy costs and lower their greenhouse gas emissions.\nProfessionally installing a standby generator and/or heat pump for your home or business is one of the best investments you can make. .\nWe at Casco Bay Generators & Heat Pumps keep the power on 24 hours a day, 365 days a year.

Standard installation.
Response time2 days
Response rate92%
16 neighbors recently requested a quote
Avatar for Origin Energy, LLC
Origin Energy, LLC
4.6(
11
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving New Gloucester, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"“I had an exceptional experience working with Origin Energy. Their team demonstrates the highest level of professionalism and a strong work ethic. They are not only knowledgeable and efficient but also consistently go above and beyond to ensure customer satisfaction. Every interaction was seamless, and their dedication to providing quality service was evident at every step. I highly recommend Origin Energy for their reliable, hardworking, and professional approach to business!”"
Completed system
First half of panels
First half progress
Response time2 days
Response rate99%
17 neighbors recently requested a quote
Showing 1-10 of 47
Generator Install questions, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

The New Gloucester, ME homeowners’ guide to generator installs

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