Two Liberty Place

Two Liberty Place

High Rise Central Utilities Plant Retrofit Results in 47% Energy Reduction! New Chiller Plant Without Helicopters or Cranes

PROJECT INFORMATION:

The project consisted of replacing 2,000 tons of chillers with new high-efficiency chillers, new fiberglass modular cooling towers, upgraded BACnet controls, a 1,000-ton plate and frame heat exchanger for free cooling in the winter, and a dynamic chiller plant optimization software package to modulate the chillers, pumps, cooling tower and valves automatically based on demand!

  • SECTOR: High Rise
  • LOCATION: Philadelphia, PA
  • CONSTRUCTION COST: $6 Million
  • PRACTICE:
    • Commercial Engineering
    • Commissioning
    • Concord Management Services
  • SERVICES:
    • Energy Engineering
    • Commissioning
    • Central Utilities Plant
    • Energy Retrofit

We are construction specialists combined with leading edge energy engineering, it’s an unbeatable partnership!

Dave RichRich Energy Solutions (RES)

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HOW WE DID THIS:

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Two Liberty Place, Philadelphia, PA Two Liberty Place, Philadelphia, PA

PROJECT BACKGROUND:

Built in 1990 as one of the first class “A” high rises in downtown Philadelphia, Two Liberty Place is a 57-story iconic multi-use skyscraper. The building consists of 30 floors of Class A office space, 20+ floors of luxury condominiums, an upscale restaurant, retail shops and food court.

Two Liberty Place, Philadelphia, PA

THE PROBLEM:

  • 25-year-old chiller plant was failing on the 38th floor.
  • Dense build out of downtown area prohibited a helicopter lift or crane to access the 38th floor.
  • Building was not designed for freight elevators or rigging paths to accommodate major mechanical equipment replacement.
Two Liberty Place, Philadelphia, PA

THE SOLUTION:

  • Concord provided innovative HVAC and electrical engineering to utilize modularized equipment and assembled in place using a unique “Lego” type stacking solution.
  • Along with our partner Rich Energy Solutions (RES), the team performed complex rigging analysis to transport the chiller/cooling tower components through retail spaces and in small freight elevators up to the 38th floor.
Two Liberty Place, Philadelphia, PA
Two Liberty Place, Philadelphia, PA

THE RESULT:

  • The project was finished without any disruption to the residents, office, and retail tenants.
  • The building’s thermal plant is saving approximately 47% in energy usage.
  • Qualified for a Philadelphia Electric Company (PECO) custom incentive and received a significant rebate from their commercial incentive program.

MORE ABOUT THIS PROJECT:

Concord Engineering is industry known for our knowledge advancing market penetration and understanding of the benefits, technical, regulatory, and cost challenges for projects of any size. Two Liberty is a 57- story iconic multi-use high rise in downtown Philadelphia. The building consists of retail shopping, an expansive food court, 30 floors of Class A office space – corporate office for Cigna Insurance company, an upscale restaurant, and 20+ floors of high-end condominiums.