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Avatar for Resolute Electric
Resolute Electric
4.9(
32
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Henderson, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I would highly recommend Resolute Electric. Klaus contacted me very quickly after my initial request and came to the house to assess the work request. I had two rooms that required different ceiling light installations and Klaus provided me with several different options for each install. The work was scheduled promptly and completed with the upmost professionalism and care. Klaus explained the work being performed as he went through each project enabling us to get the exact install configuration (type of light/bulb, positioning, switch options etc.) we required. The work was done patiently, not rushed and we were consulted throughout the day. Pricing for the work was very reasonable and as quoted i.e. no surprises. The quality of Klaus's work was exceptional and I'm extremely happy with the installations. I will definitely use Resolute Electric again when I need another electrical project."
Braemar Towers remodel
Salvation Army
Reoccurring customer
Outdoor lighting
Braemar Towers remodel

+19

Response time9 hrs
8 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for BAM Electric
BAM Electric
4.7(
7
)
Fixed Generator - Install

Serving Henderson, MD and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"Hired BAM to replace multiple ceiling Fans, install and wire appliances and update outlets in our kitchen and laundry rooms. From initial contact to project completion, I found BAM to be professional, friendly, and polite. Before he takes on a job he thoroughly goes over what needs to be done without “mansplaining” or talking down to client, as some contractors have a tendency to do to women and which I have personally experienced in the past. So happy I found BAM and look forward to working with him on future projects!"
Pole barn Wireing
Pole barn Wireing
Pole barn Wireing
Ceiling Fans and Lights
Ceiling Fans and Lights

+2

6 neighbors recently requested a quote
Bramble's Electric, Inc.
0.5(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Henderson, MD and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

Bramble's Electric Inc., was established in 2000 and provides over 15 years of professional experience. We handle both residential and commercial projects from major installs to minor electrical repairs. Our company has a commitment to the consumer to deliver excellence not only in the quality but the satisfaction of our work. Let us know how we can provide you with world class service today.

7 neighbors recently requested a quote
Recommended by100%of homeowners
Bright Solutions
4.8(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Henderson, MD and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"Excellent service and excellent pricing! Always makes sure to explain all the details and completes the job. I have had multiple outlets, recessed lighting, new circuits, ceiling fans, light switches and vanity lights installed. I will use them time and time again! Great company!"
Recommended by94%of homeowners
Mr Generator
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Henderson, MD and surrounding areas

We service and maintain generators of all sizes along with automatic transfer switches. We been in business for quite some time and we would like to help you the best way possible. We fix diesel and natural gas system. We offer maintenance for commercial or residential. We do load banks to keep your generator healthy. We serve Tri-state areas. All different plans to chose from. Lets keep your generator running and healthy for years to come.

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Generator Install questions, answered by experts

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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

The Henderson, MD homeowners’ guide to generator installs

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