Callisto II Energy Center
Callisto II Energy Center is a new construction project at 12100 Hiram Clarke Rd, Houston, in Harris County, TX, tracked from its Texas Department of Licensing and Regulation (TDLR) registration. Currently under construction. The project has an estimated value of $57.5M across about 550,000 sq ft.
Project Metrics
TDLR #TABS2026004170Project Registered
Project has been registered with TDLR and is in pre-construction phase
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Callisto II Energy Center is a New Construction project located at 12100 Hiram Clarke Rd, Houston, TX 77045 in Houston, Texas. The project has an estimated value of $57.5M covering 550,000 sq ft. CALLISTO II ENERGY CENTER LLC is the property owner and Electrical Consultants, Inc. is the design firm of record. The project was registered with TDLR on October 24, 2025.
Frequently Asked Questions
What is Callisto II Energy Center?
Callisto II Energy Center is a new construction project at 12100 Hiram Clarke Rd in Houston, Texas, registered with the Texas Department of Licensing and Regulation (TDLR). Scope of work: Construction of 300MW 2-hour battery energy storage facility and substation to interconnect to utility grid. Scope includes private access road, civil/drainage, foundations, and water line for fire protection system.
Is Callisto II Energy Center open in Houston?
Callisto II Energy Center is currently under construction in Houston, TX. Its current TDLR status is "Project Registered".
Where is Callisto II Energy Center located?
Callisto II Energy Center is located at 12100 Hiram Clarke Rd, Houston, TX, 77045, in Harris County.
Who is the owner or developer of Callisto II Energy Center?
CALLISTO II ENERGY CENTER LLC is the property owner/developer of record for Callisto II Energy Center, per its TDLR project registration.
Who is the architect or design firm for Callisto II Energy Center?
Electrical Consultants, Inc. is the design firm of record for Callisto II Energy Center, according to its TDLR filing.
How much does Callisto II Energy Center cost and how big is it?
Callisto II Energy Center has an estimated construction value of $57.5M and approximately 550,000 square feet (about $105/sqft), based on its TDLR filing.
Scope of Work
Construction of 300MW 2-hour battery energy storage facility and substation to interconnect to utility grid. Scope includes private access road, civil/drainage, foundations, and water line for fire protection system.
Note: This project is registered under the Texas Accessibility Standards (TAS) program. TDLR registration is required for commercial and public facility construction to ensure compliance with accessibility requirements under Texas Government Code Chapter 469.
Compliance Timeline
Project Timeline
Filed
Oct 24, 2025
Review Complete
Inspection Complete
Closed
Property Owner
Design Firm
Registered Accessibility Specialist
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