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Avatar for Greens Electrical
Greens Electrical
5.0(
26
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Woodruff, SC and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Came when original installer did not come even though he was booked solid that day Sent wife & son to checked unit to make sure unit would work if power might go out during approaching snow storm . Serviced unit the following week because it has not been serviced in several years ,. ."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for U.S. Energy Solutions
U.S. Energy Solutions
4.7(
74
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Woodruff, SC and surrounding areas

Approved

In business since 2015

Warranties offered

Credit card accepted

"These guys did a great job! I was called within 1 minute of requesting quotes for this job. I was given a reasonable quote promptly. Within a few days the unit was installed and is working wonderfully. I have to point out the technician that did the install. Josh was courteous and professional at all times. He stayed in contact with me thru the whole process. I would absolutely recommend this company and will to any of my neighbors that have such needs."
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Roof Installation 3rd day

+1

11 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for US Energy Solutions, LLC
US Energy Solutions, LLC
4.8(
146
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Woodruff, SC and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Can highly recommend this company. Service and installation was great. Very professional and friendly. Generators are in short supply, so plan early. Allow about three to four months for generator to be available."
Roof Mounted Solar System
Solar Battery Energy Storage
Solar Battery Energy Storage
Heat Pump
Air Conditioning Unit

+6

Response time10 hrs
Response rate92%
5 neighbors recently requested a quote
Avatar for Surge Electrical Contractor, LLC
Surge Electrical Contractor, LLC
4.7(
19
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Woodruff, SC and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Serge and Reuben were very kind and professional. They showed up on time, managed the permits and inspections in record time. AND got the power company in my area on board in record time also! This in the middle of storm damage all over our town! When there were some issues with wiring (as there always is in a house built initially in 1940 and added to in no apparent plan, quirky but cool!) Serge explained them to me and we came up with a plan and though he could have, didn't charge me for the extra effort. We discussed some future projects as the remodel goes forward and he ran wires for them so it will be a go when we get there. I couldn't have asked for better service, better communication, better replacement equipment and better understanding when I wanted to change things on the fly. He will be my go to guy for all future projects and I would recommend him highly and plan to with everyone I know. He does commercial and residential and is truly a part of the pro family now"
Response time6 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Cerberus Electrical, LLC
Cerberus Electrical, LLC
5.0(
47
)
Portable Generator - Install

Serving Woodruff, SC and surrounding areas

Approved

In business since 2022

Small jobs welcome

Credit card accepted

"Outstanding, extremely pleased with the job done for me, very helpful with other projects, immediately felt satisfied before and after the job, hook up for a generator, inside and outside, great job ."
Response time4 hrs
Response rate93%
Recommended by79%of homeowners
Avatar for Homeland Electric LLC
Homeland Electric LLC
5.0(
18
)
Portable Generator - Install

Serving Woodruff, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Matthew installed a new sub panel box for us. His work was thorough and fast. The finished job looked great and worked perfectly. He also installed recess lighting for us. Again another job very well done. Not only is he reliable and does a great job but he's also personable and very kine. We highly recommend Matthew with Homeland Electric"
Response time12 hrs
3 neighbors recently requested a quote
Avatar for Bester’s Electrical Servicing & Troubleshooting
Bester’s Electrical Servicing & Troubleshooting
5.0(
7
)
Fixed Generator - InstallPortable Generator - Install

Serving Woodruff, SC and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Bay and his crew were outstanding from start to finish. Bay communicated clearly, provided a fair and transparent quote, and showed real integrity throughout the project. Logan and Gino were equally impressive—an engaging, highly capable crew who made the work feel smooth and well organized. They were very flexible when my plans changed from replacing two light fixtures to installing ceiling fans with light dimmers. They also decommissioned and safely capped an existing light-fixture junction box, then installed a new electrical box, wiring, and mounting hardware for a pool table light fixture in a different location. The result looks great, allowed the pool table to be installed the next day and I’m very happy with the whole experience. I’ll absolutely be reaching out to Bay and his team for additional work already planned down the road. Highly recommend! Spot on experience."
240VAC Dryer Install
240VAC Dryer Install
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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.

The Woodruff, SC homeowners’ guide to generator installs

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