Having backup power from a Generac standby generator provides great peace of mind for homeowners. But generators also represent a significant investment. If you’re considering a 22kW Generac model for whole home coverage, what can you expect to pay for the generator system and professional installation?
Cost Factors for a 22kW Generac Generator
The total cost to install a 22kW Generac generator will depend on several factors:
- Generator model selected – Entry-level air-cooled or top-tier liquid-cooled
- Fuel type – Natural gas is the lowest cost, propane tanks an added expense
- Transfer switch amperage and number of circuits
- Difficulty of installation site – Ease of access for wiring and hookups
- Additional components like batteries or cold weather kits
- Professional electrician installation fees
- Permits and inspections from the building department
Installed costs typically range anywhere from $15,000 to $25,000+ for a whole home 22kW Generac generator system. Get multiple installation quotes before deciding.
Key Generator Expenses
These are the main elements that influence the total installed cost:
Generator Unit – The Generac 22kW model itself ranges from about $3,000 for a basic air-cooled version up to $6,000+ for top-end liquid-cooled units with Wi-Fi monitoring.
Fuel Source – Natural gas is the most affordable fuel option if you already have a household gas line. Propane requires installing and filling a large external tank at additional expense.
Transfer Switch – This switches power between the generator and utility lines. More amperage and circuits mean higher costs, from $800 to $2,500 installed.
Installation Labor – Electrician fees often run $1,500 to $5,000 or more depending on generator location difficulty. Easier access equals lower installation costs.
Permits & Inspections – Plan for $200 to $600 for your local building department to permit and inspect the generator installation.
Additional Cost Factors
Other items that can add cost for a Generac 22kW installation:
- Concrete Pad – A concrete foundation for the generator runs around $500 to $1,500 for materials and pouring. This helps minimize moisture damage and vibration.
- Batteries – Battery backup makes sure the generator starts reliably. Budget $500 to $1,000+ for an AGM battery bank, cables, and enclosure.
- Weather Enclosure – A weather-resistant metal enclosure provides extra protection in harsh climates for $1,500 to $2,000.
- Extended Warranties – Optional 10-year parts and labor warranties cost around $695—peace of mind for such a major investment.
- Maintenance – Figure $150 to $350 annually for a service plan to maintain your Generac generator.
Financing Options to Pay Over Time
Since Generac generators are a pricey investment, most homeowners utilize financing options to pay over time rather than paying cash upfront. Three common routes to pay for generator installation costs over months or years include:
Cash-Out Refinance – This allows tapping home equity to pay for the generator as part of a mortgage refinance. You repay the money over the loan term.
Home Equity Loan/Line – Borrow against your equity via a second mortgage or line of credit. Repayment terms up to 20 years to keep monthly costs low.
Financing Plans – Generac and electrical contractors offer loan terms from 2 months up to 84 months to pay off the system over time. Shorter terms have lower interest but higher payments.
Always compare interest rates and total costs before choosing financing. A loan between $10,000 and $20,000 is typical for a 22kW Generac install.
Is a 22kW Generator Right for You?
Before investing in a Generac generator, make sure your home actually needs 22kW of backup power. An electrician can assess your total electrical load to size the ideal generator. Oversizing wastes money on unneeded capacity.
Also evaluate if a smaller portable generator could power essentials like fridges, lights, and well pumps during outages. For whole home coverage, however, a 22kW permanent Generac unit is usually the best solution if you can fit it into your budget. The monthly expense is worthwhile for most homeowners given the advantage of reliable backup electricity.
