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Avatar for T & F Electric
T & F Electric
4.5(
199
)
Portable Generator - Install

Serving Williston, FL and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"Excellent job done by a pair of professonals. Knew what they were doing from the onset, went right to work and got done in half the time I invisioned it would take. Definitely hiring again when needed"
 Wiring of Jacuzzi & Gazeebo
 Outdoor Ceiling Fan
 Panel Upgrade
 Agriculture Electrical
 Van #1

+3

Response time1 day
Recommended by95%of homeowners
Avatar for A-1 Florida Electric Contractor Corp.
A-1 Florida Electric Contractor Corp.
4.6(
50
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Williston, FL and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I recently had quite a bit of electrical work done. GCFI outlets, install new fans, install outdoor lighting ad hardwire two outdoor fans. I am more than satisfied with the work done by A1 Florida Electrical. Victor was prompt, attentive, explained everything well. I would not hesitate to call them for any future electrical needs."
Meter Installation
Rv 50 Amp Hookup
Commercial Electrical Panel and Gutter
Commercial Job
Electrical Desconective 600 amp

+7

Response time2 days
5 neighbors recently requested a quote
Recommended by85%of homeowners
Fazenda Electrical Services LLC
5.0(
3
)
Portable Generator - InstallPortable Generator - Repair

Serving Williston, FL and surrounding areas

Approved

Warranties offered

Credit card accepted

Offers commercial services

Fazenda Electrical Services LLC is a trusted electrical contractor dedicated to providing safe, reliable, and high-quality electrical solutions for residential and commercial clients. We specialize in electrical installations, panel upgrades, lighting, troubleshooting, repairs, maintenance, and new construction projects. Our team is committed to professionalism, honesty, and attention to detail in every job we complete. We take pride in delivering excellent customer service, efficient work, and dependable results that our clients can trust. At Fazenda Electrical Services LLC, our goal is to build lasting relationships by exceeding expectations and ensuring every project is completed safely, on time, and with the highest standards of quality.

Trademark Electric
New to Angi
Fixed Generator - Install

Serving Williston, FL and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

Trademark Electric was founded in 2012 & has grown into being one of Generac’s top Power Pro Prestige Dealers in Florida. We are a state-certified electrical contractor, with Generac certified technicians who are qualified to install, service and handle warranties on both residential and commercial Generac Generators. Our office staff are educated and ready to assist with any of your generator needs from scheduling your FREE consultation, to permitting & installation, to maintaining the longevity of your unit.

5 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Williston, FL homeowners’ guide to generator installs

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