Solar Power EPC

Solar EPC NG Engine Firming for Hybrid Campuses

You are building solar for a customer who needs power around the clock, not only when the sun shines. That means firming has to be part of your solar EPC design, with engines or turbines ready to carry the load through clouds, evenings and peaks, or your customer faces outage risk.

If firming is treated as someone else’s problem, your customer faces gaps in supply, your controls fight each other and expensive redesigns land late in the schedule. Missed firm-power commitments damage contracts and reputations alike.

Match Firming Pads to Rooftop, Ground-Mount and Factory Hybrids

Rooftop solar on a factory needs compact firming near the main switchboard, while ground-mount campuses can host larger turbine pads. If your customer will add compute, data-centre power plants will need space and gas capacity reserved from the start.

Proof from recent work

Mining · Tanzania

Perseus Mining, Nyanzaga Gold Project

USP&E supplied 28 Cummins KTA50 containerised gensets for the Nyanzaga Gold Project in Tanzania.

Mining · Mali

Barrick Gold, Loulo-Gounkoto

USP&E refurbished the 104 MW power station, rebuilding more than 80 MW of Caterpillar CM32 engines and adding new zero-hour capacity.

Read the case study ›

Data centres · USA

Major US hyperscale developers

USP&E refurbished 7 GE Frame 6Bs to zero hours in-house for major US hyperscale developers.

Your path from first call to reliable power

  1. Define firm-power hours, reliability targets and solar yield for your customer.
  2. Design shared substations, protection and a plant controller that dispatches solar, storage and firming together.
  3. Test the hybrid under cloud events and evening peaks before commercial operation.

Common questions

Why add natural gas engine firming to solar EPC?

USP&E adds natural gas engine firming to solar EPC because engines ramp quickly, start several times a day and cover clouds and evening peaks reliably. Designed into the project from the start, they share infrastructure with the PV plant and let your customer receive firm power around the clock.

When does a remanufactured GE Frame 6B enter a solar campus?

USP&E brings a remanufactured GE Frame 6B into a solar campus when firming demand becomes large and steady and reliable gas supply is available. Engines and storage usually continue to handle fast changes, while the turbine carries the bulk of the firm load.

Do used or new gas turbines fit solar hybrids?

USP&E finds that used or new gas turbines fit solar hybrids once firming demand is large enough to keep a turbine loaded efficiently. Smaller hybrids usually start with engines and storage, and turbines join as the site grows or as compute loads arrive.

How do AI loads change solar firming?

USP&E sees AI loads raise firming requirements because compute halls need constant power day and night. Solar then reduces fuel use while turbines and engines carry the firm share, so the EPC design must reserve gas capacity, pads and controller headroom for that growth.

Why owners choose USP&E

85+Countries guided
35+Countries with completed utility-scale projects
18Live projects in 11 countries
400+Engineers & project managers
ISO9001 & 45001 certified

USP&E is a full-service engineering, EPC and O&M company, not a broker. One team designs, builds and runs your plant, so nothing falls between contracts.

Facing a power challenge on site?

Tell us your load, fuel and timeline. A USP&E engineer will come back with options for Solar Power EPC projects, not a sales pitch.