How Much Does a Generator Cost in San Diego?
Complete 2025 pricing guide for whole-house generator installation in San Diego East County. Learn what factors affect cost and how to budget for backup power protection.
Generator Price Ranges by Size
Generator prices in San Diego vary primarily by kilowatt (kW) capacity. Larger generators power more of your home but cost more to purchase and install. Here's what to expect for complete installed systems in 2025:
| Generator Size | Price Range | Best For |
|---|---|---|
| 7-10 kW | $6,000–$9,000 | Essential circuits only |
| 11-16 kW | $8,000–$12,000 | Small homes, partial coverage |
| 18-22 kW | $11,000–$15,000 | Most homes, whole-house |
| 24-26 kW | $14,000–$18,000 | Large homes with AC |
These prices include the generator unit, automatic transfer switch, concrete pad, installation labor, and San Diego County permits. They assume existing 200-amp electrical service and natural gas availability at the property.
What's Included in Installation Cost
A complete generator installation in San Diego includes several components. Understanding what's included helps you compare quotes accurately:
- •Generator Unit: The Generac generator itself (50-60% of total cost)
- •Automatic Transfer Switch: Detects outages and switches to generator power ($1,500–$3,000)
- •Concrete Pad: Level mounting surface for generator ($300–$600)
- •Electrical Work: Wiring, conduit, and connections to your panel
- •Gas Line Connection: Connecting to existing gas service (varies by distance)
- •Permits & Inspection: San Diego County electrical permit ($200–$400)
Factors That Increase Generator Cost
Several factors can push your generator installation cost above the typical ranges. Being aware of these helps you budget accurately:
Electrical Panel Upgrade
If your East County home has an older 100-amp electrical panel, you'll need an upgrade to 200-amp service before installing a whole-house generator. This adds $2,500–$4,500 to your project cost. Learn more about panel upgrade requirements.
Propane Tank Installation
Properties without natural gas service (common in Julian, Descanso, and Pine Valley) require propane tank installation. A 250-500 gallon tank adds $1,500–$3,000 to the project, depending on tank size and whether it's above or below ground.
Gas Line Extension
If your generator location is far from the gas meter, you'll need additional gas line installation. SDG&E or a licensed plumber can extend gas service for $500–$2,000 depending on distance and trenching requirements.
Propane vs Natural Gas Cost Comparison
Your fuel choice affects both upfront costs and long-term operating expenses:
Natural Gas
- • No tank required
- • Lower installation cost
- • Unlimited fuel supply during PSPS
- • ~$2-3/hour operating cost
Propane
- • Tank required ($1,500–$3,000)
- • Higher upfront cost
- • Must refill tank periodically
- • ~$3-4/hour operating cost
For more details on choosing between fuel types, see our propane vs natural gas generator guide.
Ongoing Costs After Installation
Beyond the initial purchase and installation, budget for these ongoing expenses:
- •Annual Maintenance: $250–$400/year for professional service. See our maintenance schedule guide.
- •Fuel Cost: Generators use $2–4/hour of fuel when running during outages
- •Extended Warranty: Optional $500–$1,500 for additional coverage beyond standard 5 years
Financing Options
Generator installation doesn't have to be a single large expense. Financing options make backup power accessible with monthly payments:
Typical Monthly Payments
- • $10,000 system: ~$180–$220/month (60 months)
- • $12,000 system: ~$200–$250/month (60 months)
- • $15,000 system: ~$250–$300/month (60 months)
0% APR promotional financing available for qualified buyers. See our complete financing guide.
Get Your Free Generator Quote
Every home is different. Get an accurate quote for your specific property with a free on-site assessment from Peak Power Systems. We'll calculate your power needs, evaluate your electrical panel, and provide a complete installed price.