Gas Turbine Buyers Guide

Published by Turbine-Trader.com · Updated 2026

Buying a used gas turbine is a significant capital decision. The right unit at the right price can deliver years of reliable service; the wrong one can become a costly maintenance burden. This guide covers everything you need to know — from evaluating condition to negotiating with brokers and avoiding common pitfalls.

1. Define Your Requirements First

Before approaching the market, get specific about your needs:

• Power output (MW): Size the turbine for your load, with headroom for growth. Oversizing wastes capital; undersizing creates reliability risk.
• Fuel type: Natural gas, dual-fuel (gas + liquid backup), or liquid-only. Fuel flexibility usually costs a premium but adds resilience.
• Configuration: Fixed (permanent installation) or mobile/skid-mounted for temporary or deployable applications.
• Frequency: 50 Hz (most international markets) or 60 Hz (North America, parts of South America). Generators are wound for a specific frequency — confirm before purchasing.
• Emissions requirements: DLE (dry low emissions) or water injection may be required by permit. Verify before purchasing a standard combustion unit.

2. Understanding the Used Gas Turbine Market

The used gas turbine market operates differently from most equipment markets. Most transactions happen through specialized brokers who maintain relationships with asset owners — utilities, oil companies, and independent power producers — who periodically decommission or surplus equipment.

Key market characteristics:

• Inventory is thin. There may be only 2–5 units of a specific model available globally at any time.
• Prices are negotiated, not listed. Asking prices are a starting point.
• Condition varies enormously. Two units of the same model and similar hours can differ significantly in value based on overhaul history.
• Export controls apply to certain turbines, particularly those with military heritage (GE LM2500, LM1600). Verify export license requirements before purchasing for international delivery.

3. Key Technical Factors to Evaluate

Operating Hours and Start Cycles

The two primary life-consumption metrics for any gas turbine are fired hours and start cycles. Both drive wear on hot section components. A turbine with 50,000 hours running baseload is very different from one with 50,000 hours in peaking service (high start cycles accelerate thermal fatigue).

Always request both metrics. If only one is provided, ask why.

Overhaul and Inspection Status

There are typically three scheduled maintenance tiers for aero-derivative gas turbines:

• Combustion inspection (CI): ~8,000 hours. Combustors and transition pieces inspected and replaced as needed.
• Hot gas path inspection (HGPI): ~25,000 hours. First-stage turbine blades, vanes, combustors replaced. Major cost event (~$1–3M).
• Major inspection (MI): ~50,000 hours. Full disassembly, all hot section and compressor components refurbished. Highest cost event (~$3–8M).

A unit fresh from a major inspection is worth considerably more than one approaching its next HGPI. Factor the remaining life into your price negotiation.

Borescope Reports

Request recent borescope inspection reports. A borescope allows visual inspection of internal components without full disassembly. Good borescope reports give you a real-time view of hot section condition and are often more informative than hour/start data alone.

Control System

Older turbines may have outdated control systems (Speedtronic Mk.V, Mark VIe) that require upgrades. Assess compatibility with your plant DCS and budget for control system modernization if needed — this can add $500K–$1.5M to the total project cost.

4. Pricing Guide by Model

The following ranges are indicative for units in serviceable condition (post-overhaul or mid-life). Units approaching next major inspection will be discounted; units fresh from overhaul will command a premium.

• GE LM2500 — $3M–$10M
• GE LM6000 — $4M–$14M
• Rolls-Royce RB211 — $2M–$8M
• Rolls-Royce Trent 60 — $8M–$20M
• Pratt & Whitney FT4 — $1M–$4M
• Pratt & Whitney FT8 — $3M–$8M
• Siemens SGT-800 — $5M–$15M
• Solar Titan 130/250 — $1.5M–$6M

5. Due Diligence Checklist

Before committing to a purchase, verify the following:

• Fired hours and start cycles (request log extracts, not just broker-stated figures)
• Last overhaul type, date, and performing shop (CI, HGPI, or MI)
• Borescope inspection report within the last 2,000 hours
• Ownership documentation and clear title
• Export license status (critical for LM2500, LM1600, and other ITAR-controlled units)
• Ancillary equipment included (inlet system, exhaust, generator, gearbox, controls)
• Storage condition and preservation status if the unit has been offline
• Outstanding liens or lease obligations on the asset

6. Working with Gas Turbine Brokers

Most used gas turbine transactions involve a broker — an intermediary who maintains relationships with asset owners and buyers. Good brokers add real value: they know what's available before it's publicly listed, can facilitate inspections, and understand export and logistics requirements.

Red flags to watch for:

• Brokers who cannot provide documentation for the assets they represent
• Vague or evasive answers about overhaul history
• Pressure to commit without adequate due diligence time
• No verifiable transaction history or references

Frequently Asked Questions

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