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Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
5.0(
15
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The installation went flawless. There were 5 installers and everyone one was a professional and had it done in super time. Would recommend them to anyone looking for a generator."
Completed 22kW Generac Standby Home Generator Installation -  With GenMon MobileLink installed, our 24/7 monitoring program which includes annual maintenance!
Automatic Transfer Switch Installed - shown on the left with the customers electrical panel on the right.
Additional Photos
Additional Photos
Additional Photos

+5

Response time3 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Pellerin Electric, LLC
Pellerin Electric, LLC
4.6(
84
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"They attended my call immediately and shown up to do the job as per schedule. All services was ok. However it tooks them a week or so for sendind a correct bill and it was a little pricy Considering what was done."
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Let It Glow Electric, LLC
Let It Glow Electric, LLC
4.6(
32
)

Serving Bennington, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Jared was very responsive to my inquiry, coordinated with the electric company and town quickly, did a nice job on the installations and at a competitive and fair price. I also liked his professional estimates, invoicing, follow up, and online payment options. The insurance company had given us a very short time to change all 3 electric panels, and by the time we hired Jared that window had diminished considerably. But he got it all done and they still aren t here!"
Exterior
Kitchen
Main service
Transfer switch and main panel
Canopy recessed cans retrofit

+27

Response time1 day
5 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
12
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Tyler and his crew were amazing! Professional, on time, great communication, and the work is top notch! From first visit to get an estimate to cleaning up the job site, perfect! Thank you and highly recommend to anyone that is looking for electrical work!"
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting

+10

Response time7 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for IDEAL ELECTRICAL SERVICES LLC
IDEAL ELECTRICAL SERVICES LLC
5.0(
11
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"The work was done unbelievably I have a old trailer/camp The fuse box was terrible the breaker box for the hot water heater was from I don't know 50 years ago and he came in and fixed everything wonderfully I would recommend him to anybody he was fantastic"
Service upgrade
Ev charger
Adu new construction
Adu new construction
Lighting upgrades

+8

3 neighbors recently requested a quote
MJS Electrical Services, LLC
3.6(
38
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"MJS Installed my new Generator, Gas piping, gas stove and telescopic downdraft kitchen vent. every aspect of the system installation was on point. in meeting the building inspector, he noted that this company has always preformed they installations to code and safety highly recommend MJS all techs and office staff always kept me informed"
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Fournier’s Home Services
Fournier’s Home Services
4.5(
8
)

Serving Bennington, NH and surrounding areas

Approved

Free estimates

Credit card accepted

"Tristan built a playhouse in the backyard from our basic sketch. He thought of things we wouldn’t have even considered and brought our idea to life. The kids love it and we are very impressed!"
10 neighbors recently requested a quote
Avatar for Brens Electric LLC
Brens Electric LLC
5.0(
1
)

Serving Bennington, NH and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

We bring years of proven experience and a strong work ethic to every project we undertake. As a fully licensed and insured electrical contractor, we combine technical expertise, attention to detail, and strict compliance with all applicable electrical codes and safety standards. Our work is performed with professionalism, precision, and accountability. Whether managing complex electrical systems or providing routine maintenance, every task is completed with a focus on quality, reliability, and long-term performance. Our goal is to build lasting relationships built on trust, consistency, and exceptional service.\n

800A Service Upgrade
800A Service Upgrade
4 neighbors recently requested a quote
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Generator Install questions, answered by experts

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. 

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The Bennington, NH homeowners’ guide to generator installs

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