Aeroderivative or Industrial Frame: Which New Gas Turbine Suits a Data Center?

Two Families, Two Design Philosophies

Aeroderivatives keep the light, compact core of a jet engine and add a power turbine to drive the generator. They start quickly, change load fast and can be maintained by swapping the engine core, which keeps downtime short.

Industrial frame turbines are heavier, with thicker casings and larger rotors built for long continuous running. They tolerate a wider range of fuels and run for long periods between major inspections, but they start and change load more slowly and are usually maintained in place.

Side by Side

These are general tendencies, not rules. Individual models vary, and some modern frame machines are much more flexible than older designs.

What Data Center Loads Ask For

A data center draws a steady load most of the time, but the plant must also survive unit trips, transfers and the slow ramp as new halls come online. That mix favours plants built from several identical blocks, so one unit can be lost or serviced without dropping load, and so capacity can grow in steps.

Delivery is part of the comparison too. Smaller aeroderivative packages can often be shipped in fewer, lighter loads and installed on simpler foundations, which helps on remote or constrained sites. Large frame units may need heavy-haul routes, cranes and longer civil works, so the logistics study belongs in the selection, not after it.

Aeroderivatives fit that block approach naturally, which is why many campus designs use them. Frame machines can also work well, especially where the load is large and stable and the site has the space and foundations for them. Our comparison of surplus frame and aeroderivative units covers the used and surplus market for both families.

Questions That Decide the Choice

1. How big is the campus load at full build-out, and how fast will it grow?
2. Will the plant run as prime power, partial supply or backup?
3. How much redundancy is required inside the plant?
4. What fuel is available, and how clean and steady is it?
5. How much space and what ground conditions does the site have?
6. How quickly must the first power arrive, and what can actually be delivered in that window?
7. Who will maintain the plant, and how long can a unit be out of service?

New Turbine Options From USP&E

USP&E supplies new, surplus and refurbished turbines from both families, together with EPC and O&M. For US hyperscale campuses, the company offers the New USP&E FX-45 45MW Modular Gas Turbine for the Hyperscale Data Center sector in the USA. Our overview of the GE gas turbine lineup describes other models the team works with; USP&E sells and services that equipment independently of the manufacturer.

Find out more about the modular turbine USP&E offers for US hyperscale sites. The company has delivered 150+ power projects in 45+ countries over 24+ years, under ISO 9001 and ISO 45001 systems.