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Avatar for Generator Supercenter of Maine
Generator Supercenter of Maine
4.6(
39
)

Serving Phippsburg, ME and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Diagnosed the problem and repaired my generator so it starts and runs well. I will be using them from now on for all of my generator service in the future. They are a first class company."
Generator Install
18KW Installation
Preparation for the day
Photos
Response time2 days
Response rate93%
78 neighbors recently requested a quote
Generators of Maine, Inc.
5.0(
5
)

Serving Phippsburg, 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 Merrymeeting Electrical Service
Merrymeeting Electrical Service
4.7(
55
)

Serving Phippsburg, ME and surrounding areas

Approved

In business since 2002

Small jobs welcome

Customers say: True professional

"Mike took on wiring hookup of complete, electrical controller system for new in-ground pool Pump, Heater, Lighting, Chemical Generation systems. My original electrician passed away unexpectedly having started project some of his work was not to Code. Mike being very professional explained that he would need to change out some of his work. With minimal directions provided by Local Pool Company Mike installed all the component controllers for the Hayward Omni System in accordance with local code requirements. He is very neat in his work, prompt to schedule and I would highly recommend his services."
Merrymeeting Electrical
11 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Power R Point, LLC
Power R Point, LLC
4.4(
19
)

Serving Phippsburg, 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
11 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Solid Ground Electrical Inc.
Solid Ground Electrical Inc.
4.8(
21
)

Serving Phippsburg, ME and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Not only did the electricians promise to come to install the stovetop as soon as it came in, they came a few days after we first made contact to see what the work would entail and agreed to dispose of the cracked stovetop for us. They kept their promise by coming the day after the stovetop came in, worked efficiently and made sure it worked properly before leaving. My husband and I were extremely impressed with their work."
14 neighbors recently requested a quote
Avatar for Casco Bay Generators LLC
Casco Bay Generators LLC
5.0(
5
)

Serving Phippsburg, 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
15 neighbors recently requested a quote
Avatar for Tru Blu Electric
Tru Blu Electric
4.4(
17
)

Serving Phippsburg, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Small jobs welcome

Customers say: Quick response

"Corey completed my electrical wiring project efficiently and as requested. I was impressed by how knowledgable he was. I wouldn't hesitate to hire him again!"
ceiling fan install
new light install
new light install
new light install
camera install

+4

Response time8 hrs
6 neighbors recently requested a quote
Recommended by42%of homeowners
Showing 1-10 of 32
Generator Install questions, answered by experts

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

The Phippsburg, ME homeowners’ guide to generator installs

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