Mitsubishi Power H-100

105 to 116 MW twin-shaft turbine, renamed from H-80 in 2015, with 32 units built worldwide

Mitsubishi Power H-100 is one of 21 gas turbines tracked in the SecondWatt catalogue, each with specifications, lead times and indicative secondary-market pricing.

Mitsubishi Power H-100 gas turbine: 105 to 116 MW ISO rating, emissions data, and why only 32 units exist worldwide with no US installation confirmed.

The H-100 is Mitsubishi Power's twin-shaft heavy-duty gas turbine, rated 105.7 MW ISO base load at 60 Hz or 116.4 MW at 50 Hz, sold in both generator-set and mechanical-drive packages. It entered commercial service in 2010 under the name "H-80" and was renamed H-100 in April 2015 with no change to the underlying specification. Any spec sheet, order record, or broker listing referencing "H-80" describes this same machine, not a discontinued predecessor — screening for "H-100" alone will miss roughly half of this model's documented history. The H-100 is MHI's own scaled-up descendant of the smaller H-25, sharing hot-section architecture by the manufacturer's own account, though the two entered service 22 years apart on different pressure ratios and stage counts. Thermal efficiency runs 38.2 to 38.3% LHV at a heat rate of 9,400 to 9,421 kJ/kWh, with a 17:1 pressure ratio and a ten-can dry-low-NOx combustor. NOx and CO are both rated at 9 ppmvd at 15% O2. In combined cycle, a 1-on-1 block reaches 150.0 MW at 55.1% LHV (60 Hz) or 171.0 MW at 57.4% LHV (50 Hz), the number this frame's economics are built around. Mitsubishi Power Americas' own data-center materials feature the H-25, not the H-100, citing a 5 to 50 MW sweet spot. A US buyer of a used H-100 would likely be first-of-kind on this continent.

Why it matters

Only 32 H-100 units exist worldwide and none has a confirmed North American installation, permit, or project on record. Mitsubishi Power's own data-center materials name the smaller H-25, not the H-100, for that market, citing a 5 to 50 MW sweet spot for hyperscale and colocation. A US buyer would likely be first-of-kind on this continent, a fleet-and-geography orphan risk rather than a corporate-custody one, since Mitsubishi Heavy Industries has owned this line continuously since 1988.

Who buys it

Utility and independent power producers buying combined-cycle capacity are the H-100's documented customer base, alongside LNG operators using the mechanical-drive package for train compression. At 105 to 116 MW it sits above a typical single-campus behind-the-meter buy and above where Mitsubishi Power itself markets turbines for hyperscale or colocation. The realistic data center fit is a very large multi-building campus or a multi-tenant power park, not a standard single-tenant deployment.

Role in the data center

At 105 to 116 MW, the H-100 sits above a typical single-campus behind-the-meter buy and above where Mitsubishi Power itself markets gas turbines for hyperscale and colocation; the company's own data-center materials name the smaller H-25, citing a 5 to 50 MW sweet spot, and do not feature the H-100. The H-100's realistic data-center fit is a very large multi-building campus at the top of the market or a multi-tenant power park. Its actual documented sales pattern is utility and independent-power-producer combined-cycle supply, not data-center behind-the-meter deployment.

Key specifications

Technical summary

ISO base-load output: 105.7 MW (60 Hz) / 116.4 MW (50 Hz) Thermal efficiency (LHV): 38.2% (60 Hz) / 38.3% (50 Hz) Heat rate: 9,421 kJ/kWh (60 Hz) / 9,400 kJ/kWh (50 Hz) Pressure ratio: 17:1 Compressor: 17-stage axial; combustor: 10-can dry-low-NOx Exhaust flow / temperature: 293 kg/s at 534C (60 Hz); 296 kg/s at 586C (50 Hz) Shaft speed: HP up to 4,580 rpm; LP 3,600 rpm (60 Hz) / 3,000 rpm (50 Hz) NOx / CO: 9 / 9 ppmvd at 15% O2 Combined cycle (1-on-1): 150.0 MW at 55.1% LHV (60 Hz) / 171.0 MW at 57.4% LHV (50 Hz) Renamed from H-80 to H-100: April 2015, no spec change Global fleet: 32 units ordered per Mitsubishi Power's own order summary

Compatibility and dependencies

Generator-set and mechanical-drive H-100 packages are different products built on the same core turbine: the generator set is rated 105.7 to 116.4 MW electrical ISO, while the mechanical-drive package for LNG train compression is rated up to 119.9 MW shaft output at a customer-selected 3,000 or 3,600 rpm. The 50 Hz versus 60 Hz build is a factory decision, not a field-convertible option, since the power-turbine shaft runs at generator-synchronous speed directly. Hot-section architecture is shared with the smaller H-25 by Mitsubishi's own account, but the two frames are not parts-interchangeable given the H-100's different pressure ratio and stage count.

Pricing and availability

Trend: flat

Lifecycle and maintenance

Mitsubishi Power Americas' own service page describes long-term service agreements offering competitive parts life and intervals rather than a published fixed schedule, condition-based framing rather than a stated number. The clearest real-world data point found is the Futtsu Power Station No. 4 unit replacement in Japan: a full H-100 swap completed in 156 days, 24 days ahead of the original 180-day plan, raising the block's combined-cycle efficiency from 47.2% to 54.3%.

Common failure points

• Dry-type low-NOx combustor (10-can) — Cracking, coking, or NOx/CO drift above the 9/9 ppmvd baseline at 1,300C-class firing temperature
• HP turbine 1st/2nd stage blades (air-cooled) — Creep and coating spallation near the 4,580 rpm HP-shaft speed
• 17-stage axial compressor — Fouling and erosion against the pressure-ratio-17 design baseline, reducing output below the 105.7/116.4 MW ISO rating
• Generator and excitation system
• Control system generation — Obsolete hardware or software, compounded by a global fleet of only 32 H-100 units limiting spares pooling
• LP power turbine blades — Erosion and tip-clearance wear near the 3,600/3,000 rpm synchronous shaft speed
• Package and auxiliary systems — Corrosion or seal degradation from storage or international transport

Inspection checklist

Confirm the nameplate frequency — ISO base-load rating is 116.4 MW at 50 Hz versus 105.7 MW at 60 Hz, and the two builds are not interchangeable Verify whether the unit is original H-80/H-100 vintage or a later uprated build — Mitsubishi renamed H-80 to H-100 in April 2015 with no spec change, and a separate program later pushed some units toward a 120 MW class Pull fired hours and starts directly from the turbine control system logs — with only 32 H-100 units ordered worldwide, individual unit history cannot be benchmarked against a mass-produced frame Confirm the exact serial number against Mitsubishi Power's own records — a fleet this small (32 units) makes provenance verification both easier to do and more important to do Borescope the 17-stage axial compressor — reference the pressure-ratio-17 design baseline when judging erosion and fouling severity Inspect all ten combustor cans — confirm whether the dry-type low-NOx design is holding the 9 ppmvd NOx and 9 ppmvd CO baseline or has drifted from it Check HP turbine blades against the 4,580 rpm maximum HP-shaft speed — this is the highest-temperature section of a 1,300C-class firing-temperature design Check LP power turbine blades against the 3,600 rpm (60 Hz) or 3,000 rpm (50 Hz) synchronous shaft speed — confirm build frequency before assuming interchangeability Get written confirmation from Mitsubishi Power of current parts and control-system software support — do not assume support depth comparable to a high-volume frame Verify measured output and heat rate against the ISO baseline of 105.7 to 116.4 MW and 9,400 to 9,421 kJ/kWh — via a recent performance test, not the original commissioning data sheet Ask the seller directly where the unit has operated and been serviced — no North American installation, project, or permit record for the H-100 turned up Confirm whether hydrogen co-firing applies to this specific unit — Mitsubishi Power's published hydrogen experience of 3.5 million hours across 29 units is a fleet-wide, cross-model figure, not an H-100-specific rating Inspect the full package — enclosure, lube-oil system, starting system — as a unit, since international relocation of heavy industrial hardware is itself a source of transport and storage damage Recompute any quoted price per kW against the confirmed ISO rating for the correct frequency of 116.4 MW at 50 Hz or 105.7 MW at 60 Hz — not the mechanical-drive shaft-output figure of up to 119.9 MW, which is a different product

Procurement channels

Machinio's Mitsubishi power-plants category page returned an HTTP 403 error rather than a confirmed-empty result. USP&E's one Mitsubishi-Hitachi listing is for the H-25, not the H-100, and its detail page returned a repeated HTTP 520 server error on every attempt.