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The Daily Insight

How much is a small electric generator

Author

Andrew Mccoy

Published Jun 25, 2026

A small, portable generator that can provide up to two Kilowatts of electricity typically costs under $500. A medium-sized generator that supplies 3-7 Kilowatts will usually cost between $400 and $1,000. A larger generator that can provide 8-12 Kilowatts will generally cost between $1,000 and $5,000.

How much does a small electric generator cost?

A small, portable generator that can provide up to two Kilowatts of electricity typically costs under $500. A medium-sized generator that supplies 3-7 Kilowatts will usually cost between $400 and $1,000. A larger generator that can provide 8-12 Kilowatts will generally cost between $1,000 and $5,000.

How much does it cost to buy an electric generator?

Generator SizePrice RangeCoverage Area13 to 16 kW$3,500 – $4,500Up to 1,500 sq ft home17 to 20 kW$4,000 – $6,0001,500 to 3,000 sq ft home22 to 25 kW$4,500 – $12,0003,000 to 5,000 sq ft home30 to 48 kW$10,000 – $16,000Large luxury home or commercial applications

How much does it cost to buy a small generator?

You can buy a good 3kW unit for under $500, an 8kW for $1,500 to $2,000 and a 10kW for about $2,000. Prices vary depending on where you buy it and what brand you choose. Leading manufacturers include Briggs & Stratton, Honda, and Generac.

What size generator is needed for a small house?

How Big of a Generator Do I Need to Run a House? With a generator rated at 5,000 to 7,500 watts, you can run even the most critical household equipment, including things such as refrigerator, freezer, well pump, and lighting circuits. A 7500-running watt generator can run all these appliances at once.

Do I need an electrician to install a portable generator?

You’ll have time to get familiar with the generator, stock up on gasoline, and most important, hire an electrician to install a transfer switch—a small device that allows you to power entire circuits in your house with a portable generator—without the hassle and potential dangers of using extension cords.

How much does it cost to connect a generator to a house?

Estimated Cost to Wire a House for a Generator On average, an electrician will charge $65 to $85 an hour, so a generator-wiring job could run you about $600 to $900 depending on the electrician and how long the job takes.

Is it worth getting a home generator?

As a homeowner, buying a generator could spare you financial losses, like food spoilage, when power outages strike. Also, if you work from home, a standby generator is a solid investment, as it ensures you won’t suffer a loss of income due to circumstances outside your control.

Are portable generators worth it?

Portable generators can be a good choice if you’re looking for limited power in an occasional power outage, and like many standby units they also run on gasoline. What you save in money however you lose in convenience, since portable generators must be operated by hand.

How do you hook up a generator to your house?
  1. Connect the generator to the transfer switch using a gen cord.
  2. Start the generator outside.
  3. Flip the main breakers in the transfer switch from “Line” to “Generator” power.
  4. One at a time, turn on the circuits you want to power.
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How many watts do I need to power my house?

How many watts does it take to power basic items in an average size house? In a typical home, essential items will average 5000 – 7500 watts of power to run.

How do I calculate what size generator I need?

Mathematics of Calculating Generator Sizing You consult the refrigerator owner’s manual and find that the running wattage for the device is 350 watts. The total wattage you need to run a small refrigerator would be 1400 watts, so you would need a generator that provided at least that many watts.

How big of a generator do I need to run my refrigerator?

Generator Recommendations For Standard Refrigerators And Freezers (3,000W) Most households will need a 3,000W generator to run their refrigerator and freezer.

What size generator do I need to run my home AC?

If you have a 3-ton (30-Amp, 36,000 BTUs) air conditioner, you need at least a 14 KW generator. If you have a 4-ton (40-Amp, 48,000 BTUs) air conditioner, you need at least a 17 KW generator. If you have a 5-ton (50-Amp, 60,000 BTUs) air conditioner, you need at least a 20 KW generator.

Can you plug a generator into a house outlet?

A generator should not be plugged into a wall socket. While it is physically possible to do so, there are substantial risks involved. Not only is it illegal in some areas, but permanent damage could also be done to the home’s electrical system by way of backfeeding.

How can I power my house with a generator without a transfer switch?

  1. Step 1: Create a Place for the Outlet Utility Box.
  2. Step 2: Drill a Hole for Running Your Generator Cables to the Outlet.
  3. Step 3: Install the Waterproof Box Outside Your Wall.
  4. Step 4: Connect the Wire Into the Outlet.
  5. Step 5: Connect Generator to Outlet and Test it.

Do you have to turn off your main breaker when using a generator?

You typically will need to turn the circuit breaker off and turn the fuel valve on before starting it up. Give the machine a few minutes to warm up, then flip the circuit breaker on. Use long, heavy-duty extension cords made for outdoor use to connect appliances to the generator one by one so as not to overload it.

How long do generators last?

The overall lifespan will depend on the type and size of your generator, but a typical range is about 1500-3000 hours. You should be powering your generator on for about half an hour each week to exercise it, which means it will run for a minimum of 26 hours per year.

How much does it cost to put in a generator hook up?

Portable Generator Installation CostNational average cost$1,200Average range$600-$2,500Low-end$250High-end$7,000

What does it cost to have a generator installed?

Installation: $3,000 – $6,500. This includes the skilled labor that is required to install a backup generator around your home. Materials: $2,500 – $6,500. Installing an air-cooled generator properly requires an assortment of materials including the generator itself.

How much does an electrician charge to install a generator transfer switch?

Average Generator Transfer Switch Installation Cost For residential applications, an electrician will spend three to four hours to install the transfer switch for which they would charge from about $200 to $500. However, the overall generator transfer switch installation cost includes both materials and labor.

When should I buy a generator?

Early spring or early fall are likely the best options for generator shopping to avoid the panic buying before, during, and after severe weather events.

Is it cheaper to run your house on a generator?

The cost of fuel to run a generator for 15 minutes is no more than $5. This means that, without accounting for the cost of any outages, you will be paying about $100 per year in fuel costs to maintain the generator. During an extended outage, fuel costs will run up to about $30 a day.

What is the difference between a portable generator and a standby generator?

Both keep power flowing to a home during a power outage, but in differing ways. A portable generator is an immediate but temporary solution powered by gasoline, while a home standby generator is an automatic, permanent backup power solution powered by natural gas or liquid propane.

Why are generators so expensive?

There are a number of reasons why generator installation costs are so high. A lot of it has to do with the amount of expertise, labor, and materials that go into safely installing and connecting a generator to a home’s electrical system.

How far from the house should a generator be placed?

Always place the generator at least 20 feet from the house with the engine exhaust directed away from windows and doors.

Is a home generator tax deductible?

What you pay for a generator of any type is not tax deductible on any tax return, in any way, shape, form or fashion. However, if used to power certain medical equipment then it *MIGHT* qualify for a tax “credit”, which is completely different from a deduction.

Do you need to ground a portable generator?

All portable generators need to be grounded in order to be safe. But, whether you need to do anything special to ground your generator depends on how it was designed. Most modern portable generators are designed such that the metal frame around the generator acts as the path of least electrical resistance.

What happens to a generator when the power comes back on?

The generator system detects a power outage immediately and waits a few seconds for the power to return. … It all happens just seconds after the power goes out. When the utility power is restored, the system reconnects the utility lines and shuts the generator down.

How do you run a power outage with a generator?

  1. Place the generator away from windows, doors, and vents that could allow CO to come indoors.
  2. Generators should be at least 20 feet away from buildings. …
  3. To avoid electrocution, keep the generator dry.

How many watts does a refrigerator use?

The average home refrigerator uses 350-780 watts. Refrigerator power usage depends on different factors, such as what kind of fridge you own, its size and age, the kitchen’s ambient temperature, the type of refrigerator, and where you place it.