The total installed cost of a whole-house generator system for a typical 2,000 square foot Home ranges from $7,000 to $15,000. But the price tag alone doesn’t tell the full story — understanding what drives cost helps you make smart trade-offs.
Cost Breakdown
| Component | Cost Range | What Affects Price |
|---|---|---|
| Generator Unit (12-20kW) | $2,500-$6,000 | Power rating, brand, aluminum vs. steel enclosure |
| Automatic Transfer Switch | $500-$1,500 | Amp rating (100A vs. 200A), integrated vs. separate |
| Electrical Installation | $1,500-$3,000 | Panel complexity, distance from panel to generator, permits |
| Gas Line Installation | $500-$2,000 | Distance from meter, meter upgrade needs, local plumber rates |
| Concrete Pad | $300-$800 | Size, local concrete costs |
| Total Installed | $7,000-$15,000 | Varies by region and complexity |
Ongoing Costs
Beyond installation, budget for: annual maintenance service ($150-$300/year), occasional parts replacement, and fuel during outages. Natural gas standby Generators cost approximately $0.15-$0.30 per kWh during operation — more than grid electricity, but only relevant during the few hours per year you actually need it.
Huaquan Tip: For commercial and industrial installations, diesel generators offer the best long-term value due to lower fuel costs and longer engine life. Contact Huaquan Power for a custom quote on diesel generators from 20kW to 2,000kW.
