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TerraForm Power acquires 1.56 GW Steward Creek Solar project from Hexagon Energy

Acquisition Solar announced United States Mar 7, 2026
1.56 GW
Capacity
development
Stage
Steward Creek Solar
Project

TerraForm Power acquired the 1.56 GW Steward Creek Solar project from Hexagon Energy, adding one of the country’s largest solar projects under development to its pipeline.

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Deal Analysis

TerraForm Power just made a big bet on future U.S. solar capacity, acquiring the 1.56 GW Steward Creek project in Illinois. This move significantly expands the leading North American renewable owner-operator's pipeline, adding one of the country's largest solar developments to its existing 2,200 MW portfolio of wind, solar, and storage assets. For Australian developer Hexagon Energy, the sale allows them to monetize a major solar asset as they continue to focus on developing clean energy projects, including hydrogen. The deal, announced March 7, 2026, brings a substantial new renewable energy source to the Illinois grid once operational.
  • 1.56 GW Steward Creek Solar project, among the largest U.S. developments.
  • TerraForm Power adds to its 2,200 MW North American portfolio.
  • Australian developer Hexagon Energy sells major U.S. solar asset.
  • Project is in development stage in Illinois.

Source Intelligence

KEY DETAILS

The acquisition adds one of the country’s largest solar projects under development to TerraForm’s active pipeline. Quote: "it adds one of the country’s largest solar projects under development to TerraForm’s active pipeline." Construction is expected to begin in 2027. Quote: "construction is expected to begin in 2027." The project includes a 600 MW interconnection agreement with Commonwealth Edison and PJM Interconnection. Quote: "it includes a 600 MW interconnection agreement with Commonwealth Edison and PJM Interconnection." Steward Creek Solar will be established in two phases: Phase 1 construction in 2027, operation by 2029; Phase 2 construction in 2028, functionality by 2030. Quote: "Steward Creek Solar will be established in two phases. Phase 1 will start construction in 2027 and reach operation by 2029, while Phase 2 is projected for 2028 construction and a 2030 functionality date."

Capacity
TerraForm Power strengthens U.S. development portfolio through 1.56 GW Steward Creek Solar purchase
Location
The upcoming project will be built in Lee County, Illinois.
Announcement
by Prince March 7, 2026
PARTIES MENTIONED IN SOURCE
T
TerraForm Power buyer

"TerraForm Power strengthens U.S. development portfolio through 1.56 GW Steward Creek Solar purchase"

H
Hexagon Energy seller

"One of the key components behind the acquisition is Hexagon Energy."

medium quality Enriched Mar 9, 2026

Timeline

Announced
Mar 7, 2026
Signed
Closed

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