Ansaldo Energia AE94.2 (V94.2) Gas Turbines for Sale
Manufacturer: Ansaldo Energia
190 MW, 50 Hz E-class frame with two silo combustors, the Ansaldo build of the V94.2 (SGT5-2000E), for gas, oil and low-Btu fuels.
This model is part of SecondWatt’s gas turbine research catalogue. Specifications and price observations are included where supported by sources. Equipment availability and commercial terms require confirmation.
Ansaldo Energia AE94.2 (V94.2) gas turbine: 190 MW at 36.8%, 50 Hz, silo combustors, 41,000 EOH interval, low-Btu AE94.2K and used asking prices.
The AE94.2 is a heavy-duty, single-shaft E-class gas turbine from Ansaldo Energia for 50 Hz grids, rated 190 MW gross at 36.8% efficiency at ISO conditions on natural gas. It has a 16-stage axial compressor with variable guide vanes, two silo-type combustion chambers lined with individually replaceable tiles and fitted with eight dry low-NOx dual-fuel burners each, a 4-stage air-cooled turbine and a cold-end generator. Ansaldo stresses fuel range: up to 40% hydrogen in gas blends, naphtha, crude and heavy fuel oil, coal gases, HVO, methanol and ethanol, with gas-to-oil switchover in 2 minutes. The AE94.2K version burns low- and very low-Btu gases from steel mills and refineries.
Buyers also search for it as the V94.2. Combined Cycle Journal equates the Siemens SGT5-2000E with the V94.2 and lists Ansaldo's AE94.2 as 50 Hz only. Siemens licensed its heavy-duty technology to Ansaldo from 1991 to October 2004, and a 2016 ICC award confirmed Ansaldo's right to keep using it. Ansaldo states that its MXL2 hot-gas-path parts fit all versions of the AE/V94.2 and the SGT5-2000E. The 60 Hz relative, Siemens' V84.2 or SGT6-2000E, is a separate 119 MW engine running at 3,600 rpm.
Ansaldo's 2025 brochure reports more than 120 units installed and more than 10 million equivalent operating hours (EOH). Recent orders include two units for a combined heat and power plant in Kazakhstan (2024) and six for open-cycle peaking plants in South Africa (2013).
Why it matters
It is a 190 MW E-class unit with a broad fuel range, a 41,000 EOH hot-gas-path interval and 15 ppm NOx on gas. Because it shares the V94.2 design base, parts come from Ansaldo, from Siemens Energy for the SGT5-2000E, and from third parties such as Sulzer, which makes equivalent parts for V94.2 versions 3 to 7. Assessment: that multi-source support and a fleet of several hundred V94.2-family units are what keep a used AE94.2 serviceable.
Who buys it
Utilities and independent producers in 50 Hz markets building open-cycle peaking plants (six AE94.2 for two South African peakers in 2013, two for an Egyptian open-cycle plant in 2015) or 287-578 MW combined-cycle blocks; city heat-and-power operators, as in a 2024 Kazakh plant rebuild; and steel mills and refineries burning process gas in the AE94.2K, as in a 2019 Chinese syngas order. Ansaldo also cites areas where power runs on alternative fuels and grids with severe operating conditions.
Role in the data center
Ansaldo publishes no AE94.2 data-center reference as of November 2026. Its October 2026 partnership with Hitachi Energy targets integrated generation and grid packages for 50 and 60 Hz markets, including data centers, without naming a model. Assessment: in 50 Hz markets an AE94.2 suits a campus power plant as a 190 MW open-cycle unit or a 287-578 MW combined-cycle block, with Ansaldo citing dead-grid energization capability.
Key specifications
| Gross gas turbine power output, ISO, natural gas | 190 MW |
|---|---|
| Gross gas turbine power output (September 2022 brochure) | 191 MW |
| Gross gas turbine efficiency, ISO, LHV | 36.8 % |
| Gas turbine exhaust mass flow | 555 kg/s |
| Gas turbine exhaust temperature | 550 C |
| Gas turbine minimum load | 40 % |
| Combined cycle 1+1 net output / efficiency | 287 / 55.8 MW / % |
| Combined cycle 2+1 net output / efficiency | 578 / 56.2 MW / % |
| Combined cycle net heat rate, 1+1 / 2+1 | 6,450 / 6,405 kJ/kWh |
| Combined cycle plant minimum load, 1+1 / 2+1 | 45 / 25 % |
| Frequency | 50 Hz |
| Compressor | 16-stage axial with variable guide vane |
| Combustion system | 2 silo chambers with replaceable tiles, 8 dry low-NOx dual-fuel burners each |
| Turbine | 4-stage, air-cooled, axial discharge |
| NOx, dry gas mode | 15 ppm |
| NOx, dry oil mode / with small water amount | 75 / 25 ppm |
| Fuel switchover, gas to oil and oil to gas | 2 minutes |
| Hydrogen in fuel gas blends, up to | 40 % |
| Hot-gas-path inspection interval | 41,000 EOH |
| Inspection interval with MXL2 upgrade, up to | 50,000 EOH |
| MXL2 M-mode gain, simple cycle, up to | 13 MW / 1.4 MW / % points |
| Installed units (2025 brochure) | more than 120 units |
| Fleet operating experience (2025 brochure) | more than 10 million EOH |
| Simple-cycle heat rate, gross LHV (calculated from 36.8%) | 9,270 Btu/kWh |
| Siemens SGT6-2000E (60 Hz relative) output and speed | 119 MW at 3,600 rpm |
Technical summary
Ansaldo Energia rates the AE94.2 at 190 MW gross and 36.8% gross efficiency at ISO conditions on 100% methane (LHV), with 555 kg/s exhaust flow at 550 C and a 40% minimum gas turbine load. A 1+1 combined cycle gives 287 MW net at 55.8% (6,450 kJ/kWh) and a 2+1 gives 578 MW at 56.2% (6,405 kJ/kWh), with plant minimum loads of 45% and 25%. NOx is stated down to 15 ppm on gas and 75 ppm on oil in dry mode, or 25 ppm with a small water flow. The hot-gas-path interval is 41,000 EOH and hydrogen is up to 40% in blends. The simple-cycle heat rate works out to about 9,270 Btu/kWh LHV gross (calculated).
Major variations
The current AE94.2 is rated 190 MW (2025 brochure; the September 2022 edition gave 191 MW). The AE94.2K burns low- and very low-Btu gas, down to 4,000 kJ/kg per the 2022 brochure. Older units carry lower ratings: two AE94.2 ordered for Egypt in 2015 were rated about 170 MW. Ansaldo's MXL2 upgrade adds up to 13 MW and 1.4 points of simple-cycle efficiency in M mode, or 8,000 EOH more between inspections in XL mode, with intervals up to 50,000 EOH. Siemens' SGT5-2000E (198 MW) and the 60 Hz SGT6-2000E (119 MW) are the Siemens-built members of the family.
Configurations and options
Choices that change price and scope are open cycle versus 1+1 or 2+1 combined cycle; gas-only, dual-fuel or low-Btu (AE94.2K) combustion; water for 25 ppm NOx on oil; hydrogen blends up to 40%; and upgrade packages such as MXL2 in M or XL mode. Ansaldo sells gas turbines with generators and auxiliaries or within plant contracts, and offers customized service agreements that can include upgrades. A low-Btu AE94.2K project adds a syngas compressor train, as in Ansaldo's 2019 Chinese order.
Compatibility and dependencies
The AE94.2 is built for 50 Hz only and drives its generator directly; Assessment: it is not a candidate for a 60 Hz grid. Ratings are ISO on methane; site output falls with heat, altitude and duct losses. Fuels range from natural gas and hydrogen blends to distillates, crude, heavy fuel oil and process gases; heavy and low-Btu fuels need matching fuel treatment and, for the AE94.2K, gas compression. Combined cycle adds a heat recovery steam generator, steam turbine and cooling.
Price evidence
Price on request. Configuration, scope and dated evidence are confirmed separately for each request.
What drives the price
Assessment: hours and starts against the 41,000 EOH interval, the build vintage and rating (older V94.2 units are rated well below 190 MW), combustion system and fuel set-up (gas, dual fuel or AE94.2K low-Btu), MXL2 or other upgrades, scope (gas turbine-generator only or a complete combined-cycle plant), dismantling and shipping, and whether Ansaldo or Siemens records support the service history.
Lifecycle and maintenance
Ansaldo states an extended 41,000 EOH inspection interval for hot gas components, rising to up to 50,000 EOH with the MXL2 upgrade in XL mode. All vanes and blades can be replaced with the rotor in place, and the silo combustors give direct access for checks and repairs. Ansaldo services AE, SGT and V models under flexible service agreements, Siemens Energy services the SGT5-2000E, and Sulzer makes equivalent parts for V94.2 versions 3 to 7. Ansaldo does not publish an MTBF or a starts-based interval for the AE94.2 as of November 2026.
Thermal and emissions profile
Ansaldo states NOx down to 15 ppm in dry gas mode and 75 ppm in dry oil mode, or 25 ppm on oil with a small water flow, from dry low-NOx dual-fuel burners in two silo combustors. Hydrogen blends are stated up to 40%. 15 ppm is about 31 mg/Nm3 and 75 ppm about 154 mg/Nm3 as NO2 at 15% O2 (calculated). Assessment: 15 ppm meets the EU new-plant limit of 50 mg/Nm3 on gas, while dry oil firing needs water injection to approach the distillate limits.
Common failure points
- Combustor tile system — Fretting wear on a tile support ring found at about 42,000 EOH and 230 starts, per a 2019 V94.2 owner report
- Burners and combustion dynamics — Burner ring wear from low-frequency combustion dynamics ('hammering') reported on V94.2 units
- Turbine blades — Leading-edge damage on first-stage blades from a loose part, and a crack from dents on fourth-stage blades (2019 user report)
- Compressor blades — Trailing-edge tip damage on rows 8 and 9 found at an extended hot-gas-path inspection
- Compressor thrust bearing — Damaged pads, pins and springs found at 16,000 EOH on one V94.2
- Inner casing — A crack near a holder found at a 33,000 EOH inspection and repaired by local welding
AE94.2, V94.2 or SGT5-2000E: identify what is offered
- Combined Cycle Journal equates the Siemens SGT5-2000E with the V94.2, and lists Ansaldo's AE94.2 as the 50 Hz Ansaldo designation of the same family. Ansaldo states its MXL2 parts fit all AE/V94.2 and SGT5-2000E versions. Read the nameplate for the maker, rating and build year: older units are rated below today's 190 MW, such as the about 170 MW of two AE94.2 ordered for Egypt in 2015.
- The 60 Hz relative is Siemens' SGT6-2000E, a separate 119 MW engine at 3,600 rpm. A 50 Hz AE94.2 is not a 60 Hz machine with a different gearbox.
Hot-gas-path position and upgrades
- Ansaldo states a 41,000 EOH hot-gas-path interval, extendable to up to 50,000 EOH with MXL2 in XL mode, and allows vanes and blades to be replaced with the rotor in place. Price a unit near its interval as needing an inspection, and ask which upgrade package, if any, is installed.
Fuel set-up
- Confirm which fuels the unit is set up and tested for: natural gas, hydrogen blends up to 40%, distillate, heavy fuels or low-Btu process gas (AE94.2K). Ansaldo states 2-minute fuel switchover and 25 ppm NOx on oil only with water.
Inspection findings to look for
- V94.2 owners reported tile-support fretting, burner wear from combustion dynamics, compressor row 8-9 tip damage, thrust-bearing damage and turbine blade damage in 2019. Ask for the matching inspection records before pricing a used unit.
Compare offers on
- Maker, rating and vintage — Ansaldo AE94.2 or Siemens V94.2, nameplate rating and build year.
- Hot-gas-path position — EOH and starts since the last hot-gas-path and major inspections against the 41,000 EOH interval.
- Fuel and combustion set-up — Gas, dual fuel or AE94.2K low-Btu; NOx on each fuel; water injection for oil.
- Upgrades — MXL2 or Siemens-side upgrades installed, with dates and records.
- Included scope — Gas turbine-generator only or complete plant with HRSG, steam turbine, transformers and controls.
- Costs outside the offer — Dismantling, shipping, foundations, fuel systems, emissions controls, grid connection and recommissioning.
Seller checklist
- Nameplate photographs for gas turbine and generator with maker, rating and serial numbers
- EOH and starts since new and since the last hot-gas-path and major inspections
- Combustor tile and tile-holder inspection records
- Compressor and turbine borescope reports and images
- Thrust-bearing and casing inspection records
- Combustion dynamics trends and burner tuning history
- Emissions test results on each fuel
- Upgrade history (for example MXL2) with OEM documents
- Controls platform, software version, drawings and manuals
- Included and excluded scope list with spares inventory
What sets the value
Value rests on documents that fix the unit's identity and remaining life: nameplate photographs naming the maker and rating; EOH and starts with the last hot-gas-path and major inspection reports; combustor tile, compressor and turbine borescope records; upgrade history; emissions tests per fuel; generator test results; and the controls platform. State the fuels the unit is set up to burn.
Is the AE94.2 the same as the Siemens V94.2 or SGT5-2000E?
They share one design family. Combined Cycle Journal equates the Siemens SGT5-2000E with the V94.2 and lists the AE94.2 as Ansaldo's 50 Hz designation. Siemens licensed the technology to Ansaldo from 1991 to October 2004, and Ansaldo states its MXL2 parts fit all AE/V94.2 and SGT5-2000E versions. Current ratings differ: 190 MW for the AE94.2 and 198 MW for the SGT5-2000E.
How much power does an AE94.2 produce?
Ansaldo Energia rates it at 190 MW gross and 36.8% at ISO conditions on methane. A 1+1 combined cycle gives 287 MW net at 55.8% and a 2+1 gives 578 MW at 56.2%. Older units carry lower ratings.
Can an AE94.2 run at 60 Hz?
No. Ansaldo lists the AE94.2 for 50 Hz only. The 60 Hz member of the family is Siemens' SGT6-2000E, a separate 119 MW engine at 3,600 rpm. Ansaldo's 60 Hz-capable model is the AE64.3A.
What fuels can the AE94.2 burn?
Ansaldo lists natural gas with up to 40% hydrogen, naphtha, crude and heavy fuel oil, hydrogen-rich fuels, coal gases, HVO, methanol and ethanol. The AE94.2K version is designed for low- and very low-Btu gases from steel mills and refineries.
How often does an AE94.2 need a hot-gas-path inspection?
Ansaldo states an extended 41,000 equivalent operating hour interval for hot gas components, and up to 50,000 EOH with its MXL2 upgrade in XL mode.
Inspection checklist
Record the nameplate maker (Ansaldo or Siemens), model, rating, build year and the generator and gas turbine serial numbers. Obtain EOH and starts since new and since the last hot-gas-path inspection and compare them with the 41,000 EOH interval. Request combustor tile and tile-holder records, combustion dynamics trends, compressor and turbine borescope images, thrust-bearing inspection results, casing NDE reports, upgrade history (for example MXL2) and emissions tests on each fuel.
Procurement channels
New units come from Ansaldo Energia as gas turbine and generator supply or in plant contracts; Shanghai Electric markets the AE94.2 and AE94.2K in China. Used units are advertised as V94.2 or AE94.2 gas turbine-generators and complete plants; in November 2026 one two-unit lot carried a public per-unit ask and the other listings seen were contact for pricing. Siemens-built V94.2 units are serviced by Siemens Energy, Ansaldo and third parties.
Regional notes
The AE94.2 is offered for 50 Hz only; 60 Hz buyers look at Siemens' separate SGT6-2000E. In the EU its thermal input of about 516 MW (calculated) puts it under the Industrial Emissions Directive. Recent public orders are in Kazakhstan, Indonesia, Egypt, South Africa and China. Projects financed under World Bank Group standards apply its guideline of 51 mg/Nm3 (25 ppm) NOx on gas.
Content owner: Gary Martin, SecondWatt