Standby Generator Cost Calculator
Last updated: July 2026
Estimate standby generator installation cost including equipment, labor, transfer switch, fuel connection, site work, permits and maintenance.
Estimated net standby generator cost
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- Gross project cost: —
- Electrical and fuel connection: —
- First-year maintenance: —
- Contingency and rebates: —
On this page
Quick summary: Estimate standby generator installation cost including equipment, labor, transfer switch, fuel connection, site work, permits and maintenance. Enter the requested values, calculate, review the result, and compare more than one realistic scenario before making a decision.
Read the complete guide
What this calculator estimates
Estimate standby generator installation cost including equipment, labor, transfer switch, fuel connection, site work, permits and maintenance. It is designed for fast planning and comparison in the United States. The output is an estimate, not a binding quote, approval, tax determination, insurance offer or professional recommendation.
How to use it
Enter the requested values using a single consistent time period and currency. Select Calculate, review the headline result and supporting figures, then change one assumption at a time to compare another scenario.
How the calculation works
Equipment, labor, transfer switch, fuel connection, site work and maintenance are added. Contingency is applied and rebates are subtracted.
Important limitations
Generator size, load management, utility coordination, fuel availability, trenching, code, noise rules and electrical service affect actual proposals.
Frequently asked questions
Is the result exact?
No. It is a planning estimate based on the assumptions entered.
Can I compare different scenarios?
Yes. Change one input at a time so you can see which assumption changes the result.
Does the calculator store my inputs?
The calculation runs in the browser and does not require an account. Avoid entering unnecessary confidential information.