In New Jersey, a home Generac generator typically costs between $12,000 and $20,000 installed. The final price depends on the size of the home and how much power you want during an outage.
Smaller homes that only need essential backup usually fall near the lower end of the range. Larger homes that require whole-house coverage often land closer to $18,000 to $20,000, especially when electrical or gas upgrades are necessary.
This cost includes the generator unit, transfer switch, labor, permits, fuel connection, testing, and final inspection. Every home is different, so exact pricing depends on site conditions and electrical load.
Key Takeaways
- A home Generac generator in NJ typically costs $12,000 to $20,000 installed, depending mainly on the size of the house.
- Installation costs include the generator installed as a full system with a transfer switch, wiring, fuel connection, permits, and inspections.
- Generator size, fuel source, and site preparation are the main factors that change the final price.
- Accurate pricing requires a site visit because online estimates cannot reflect real electrical and code needs.
Whole House Generator Cost in NJ
Comparing price ranges by generator size helps explain overall costs. These ranges reflect typical New Jersey installations under standard conditions–final numbers may vary based on load needs, fuel availability, and permits.
A home Generac generator costs $12000-$20000, which depends on the house’s size.
These figures reflect a complete house generator installation. Generator-only pricing does not include labor, wiring, or inspections. Site preparation and upgrades can raise costs.
Average home generator installation cost
As previously mentioned, the average home generator installation cost typically falls between $8,000 and $12,000, once load calculations are complete, for most single-family homes.
Partial backup systems that power essential circuits often land closer to the lower end of this range. Complete backup power systems that support most or all of the home usually push costs higher. Electrical panel condition and the distance to natural gas or propane connections can affect the final price.
Installed cost vs generator-only cost
In New Jersey, generator-only pricing usually ranges from about $5,000 to $9,000, depending on size and model, but this covers only the equipment.
The installed cost is higher because it includes labor, permits, inspections, and coordination with local utilities, which often adds $3,000 to $8,000 or more. This is why a fully generator-installed system commonly totals $12,000 to $20,000+. Comparing equipment prices alone can be misleading because they do not reflect real installation costs or code requirements.
Professional installation costs usually include:
- Generator and mounting hardware
- Transfer switch and wiring
- Electrical labor and system connection
- Fuel hookup for natural gas or propane
- Permits, inspections, and system testing
Whole House Generator Cost by Size
Generator Capacity for a 2,000 Sq Ft Home
The generator size depends on how much power you want during an outage.
These tiers summarize common standby generator capacity ranges and what manufacturers and industry guides describe at a high level. Exact results depend on your load calculation.
| Coverage goal | Typical capacity range | What sources describe |
|---|---|---|
| Partial backup | 10–14 kW |
Generac describes 10 kW standby units as providing essential circuit power protection during an outage. |
| More coverage | 16–18 kW |
Industry guides commonly describe 16–17 kW standby generators as supporting mid-sized and large homes during outages. |
| Full backup | 20–22 kW |
Generac describes its 22 kW standby generator as able to provide whole-house backup power for many homes. |
Sources
Generac – 10kW Standby Generator (Essential Circuits) Norwall – 16kW–17kW Standby Generator Overview Generac – 22kW Standby Generator (Whole-House Backup)Disclosures
These tiers are generalized. Sources describe capability at a high level (for example, “essential circuits” or “whole-house backup for many homes”), but they do not guarantee specific appliances for every home. Actual coverage depends on starting watts, connected loads, and load management, which must be confirmed by a load calculation.
Oversizing raises cost without added benefit. For guidance, see how to choose a home generator.
Cost to install a 22kW generator.
The cost usually ranges from $16,000 to $20,000 installed for a typical mid-size home with central air. This price includes the generator, fuel piping, electrical wiring, transfer switch work, and required code clearances.
Generac Home Generator Installation Cost in NJ
What is the average cost of a Generac home generator
A home Generac generator typically costs $12,000 to $20,000, depending on house size and power needs. Smaller homes cost less, while larger homes with full backup power cost more.
Grounded Electric is Generac-certified, demonstrating compliance with the manufacturer’s training standards.
Generac generator cost plus installation
When you combine equipment and installation, total pricing typically falls between $12,000 and $20,000 for a complete Generac generator system. Learn more about Generac installation in NJ and how local factors affect pricing. Costs rise if panel or gas upgrades are needed.
Generac generator cost for a 3500 sq ft house.
For a 3,500 sq ft home in New Jersey, a Generac generator usually costs $15,000 to $20,000, with installation adding $3,500 to $9,000.
In total, the Generac generator cost for a 3,500 sq ft house is commonly $18,500 to $28,000+ installed, depending on system size and site work. For more details, see what size Generac do I need?
Is It Worth Installing a Whole House Generator
A standby system helps maintain power during outages. Homeowners weigh upfront cost against reliability and comfort. Long-term performance depends on regular standby generator maintenance.
How to Get an Accurate Generator Installation Quote
Accurate pricing requires a site visit, load calculations, and fuel checks. Licensed electrician Robert “Bobby” Mulholland stresses proper evaluation before final numbers are given. Online estimates miss code rules and site limits, which leads to errors.
Ask about permits, fuel work, timelines, and testing. Barret Abramow, Project Manager and Co-Owner, often coordinates these steps to ensure compliance.
To get precise pricing for your home, consider scheduling a consultation so these factors can be reviewed on-site and documented accurately.
