Pearl Street Energy Centre

Project Overview

The Pearl Street Energy Centre is a state-of-the-art district heating facility that leverages heat pump technology to provide low-carbon thermal energy to multiple buildings in downtown Toronto. This project represents a significant advancement in sustainable urban energy infrastructure.

With a heating capacity of 62,000 MBH (thousand BTUs per hour) and a cooling capacity of 3,600 tons, the facility's water-source heat pumps are integrated with Enwave's district energy network and were designed to reduce the carbon footprint of connected buildings while providing reliable heating and cooling. The project was completed in 2025.

Project reference: HH Angus

My Role

I served as the Mechanical Engineer of Record throughout the project and as Project Manager during the first phase of design.

Scope of Work

• Detailed engineering design of the 62,000 MBH heating / 3,600 ton cooling heat pump system
• Integration with existing district energy infrastructure
• Energy and performance optimization
• Energy storage system evaluation
• Carbon impact analysis

Technical Challenges & Solutions

One of the primary challenges in this project was integrating the new heat pump technology with the existing district energy infrastructure while maintaining uninterrupted service to connected buildings.

The solution involved a phased implementation approach. The heat pump staging strategy incorporated a false loading system to manage temperature fluctuations and protect service to existing district energy customers.

Additionally, the project required careful consideration of space constraints in the dense urban environment, leading to innovative equipment layouts and solutions that maximized efficiency while minimizing footprint.

Results & Impact

The figures above are design values and projections, not measured operating results.