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Powering Calgary

Become Part of the Calgary District Energy System

The Calgary District Energy System (DES) is a highly engineered infrastructure project with construction activities that take place within the public rights-of-ways and individual customer buildings with unique requirements. Connecting your building to the DES is a multi-phase project consisting of civil and mechanical construction inside and outside your building. Below is a summary of the four stage approach our team takes to get you connected. 

Commercial Agreements

Engineering and Design

Construction

graphic

On-going Operations

This information is intended to serve as a guide to outline each stage of development and the high-level action and resources required to facilitate a successful connection to CDHI. And since every connection to DE is specific to each building, click here to connect with our Project and Development team who would be more than happy to talk hot water.

  •  CDHI has assigned a dedicated representative (s) that will be the primary interface between the customers Building Operations and Management team to handle all customer related questions and concerns before, during and after system construction and commissioning.
  •  This representative will handle all matters related to the commercial agreements required to facilitate the DE connection.
  •  CDHI recommends the customer make available a resource for the following:
    • Commercial Lead – Customer to identify a senior-level resource to negotiate commercial terms and the definitive agreement and will interface directly with CDHI.
    • Legal Counsel – CDHI recommends an internal/external legal resource be used to review commercial terms and agreements.
  •  CDHI has assigned a dedicated representative (s) that will be the primary interface between the customers Building Operations and Management team to handle all customer related questions and concerns before, during and after system construction and commissioning.
  •  CDHI has assigned a dedicated representative to interface with the customer to handle all matters related to the commercial agreements required to facilitate the DE connection.
  •  CDHI recommends the customer make available a resource for the following:
    • Commercial Lead – Customer to identify a senior-level resource to negotiate commercial terms and the definitive agreement and will interface directly with CDHI.
    • Legal Counsel – CDHI recommends an internal/external legal resource be used to review commercial terms and agreements.
  • CDHI has assigned a dedicated project manager and will be the primary interface to our Owners Engineer and General Contractor for all TDS, ETS and plant-related work.
  • CDHI has assigned a dedicated Construction Manager that will be the primary interface with the GC and its subcontractors for the TDS, ETS and plant-related construction.
  • The PM and CM will work with the building operations and project team to coordinate TDS and ETS-specific tasks.
  • CDHI recommends the customer make available a resource for the following:
    • Engineering – Engineering resource acting on behalf of the customer and interfacing with CDHI engineering, PM and CM.
    • Operations/Project Management – On-site building operations staff to interface with CDHI for all on-site construction, interconnection and commission work.
  • CDHI has assigned a dedicated project manager and will be the primary interface to our Owners Engineer and General Contractor for all TDS, ETS and plant-related work.
  • CDHI has assigned a dedicated Construction Manager that will be the primary interface with the GC and its subcontractors for the TDS, ETS and plant-related construction.
  • The PM and CM will work with the building operations and project team to coordinate TDS and ETS-specific tasks.
  • CDHI recommends the customer make available a resource for the following:
    • Engineering – Engineering resource acting on behalf of the customer and interfacing with CDHI engineering, PM and CM.
    • Operations/Project Management – On-site building operations staff to interface with CDHI for all on-site construction, interconnection and commission work.
  • Confirm TDS entry point into the building.
  • Identify appropriate ETS locations within the building.
  • Confirm internal TDS routing to ETS location.
  • Identify TDS interconnection point to the buildings’ mechanical secondary side.
  • Identify external emergency heat connection points.
  • Identify any or all third-party construction activities taking place inside/outside or in close proximity to the customer building that may impact the construction schedule and building operations.
  • Determine construction restrictions and timing restrictions for on-site work.
  • Provide preliminary milestone construction schedule.
  • Provide expectations for customers consulting engineers to review documentation.
  • Confirm on-site construction start date and duration.
  • Identify laydown area within the building for fabrication work or materials storage related to ETS.
  • Confirm TDS entry point into the building.
  • Identify appropriate ETS locations within the building.
  • Confirm internal TDS routing to ETS location.
  • Identify TDS interconnection point to the buildings’ mechanical secondary side.
  • Identify external emergency heat connection points.
  • Identify any or all third-party construction activities taking place inside/outside or in close proximity to the customer building that may impact the construction schedule and building operations.
  • Determine construction restrictions and timing restrictions for on-site work.
  • Provide preliminary milestone construction schedule.
  • Provide expectations for customers consulting engineers to review documentation.
  • Confirm on-site construction start date and duration.
  • Identify laydown area within the building for fabrication work or materials storage related to ETS.
  • Confirm TDS entry point into the building.
  • Identify appropriate ETS locations within the building.
  • Confirm internal TDS routing to ETS location.
  • Identify TDS interconnection point to the buildings’ mechanical secondary side.
  • Identify external emergency heat connection points.
  • Identify any or all third-party construction activities taking place inside/outside or in close proximity to the customer building that may impact the construction schedule and building operations.
  • Determine construction restrictions and timing restrictions for on-site work.
  • Provide preliminary milestone construction schedule.
  • Provide expectations for customers consulting engineers to review documentation.
  • Confirm on-site construction start date and duration.
  • Identify laydown area within the building for fabrication work or materials storage related to ETS.
  • Identify secondary side components that need to be modified/replaced to meet DE specifications, which include but are not limited to, Pumps, DHW Tank, Humidification, Heating coils, BMS, etc.
  • Ensure ETS location is prepared and ready for skid construction/installation.
  • Identify laydown areas within the building for fabrication work or materials storage related to ETS.
  • Facilitate the modification/replacement of secondary-side equipment to meet DE specifications.
  • Determine construction restrictions and timing restrictions for on-site work.
  • Provide preliminary milestone construction schedule.
  • Provide expectations for customers consulting engineer to provide or review/sign off on drawings and documentation.
  • Confirm on-site construction start date and duration.
  • Identify commissioning timeframe and customer handover date.
  • Identify commissioning date with building operation staff.
  • Confirm completion of all TDS and ETS construction and pre-commissioning work.
  • Commission ETS and confirm system operation alongside building operation staff.
  • Complete review of billing with customers’ accounting group prior to COD.
  • Declare Commercial Operations Date (COD).
  • Demobilize from site.
  • Provide the customer with Turn-over Package which includes the following:
    •  As-built drawings
    •  Emergency contacts and protocols
  • Identify commissioning date with building operation staff.
  • Confirm completion of all TDS and ETS construction and pre-commissioning work.
  • Commission ETS and confirm system operation alongside building operation staff.
  • Complete review of billing with customers’ accounting group prior to COD.
  • Declare Commercial Operations Date (COD).
  • Demobilize from site.
  • Provide the customer with Turn-over Package which includes the following:
    •  As-built drawings
    •  Emergency contacts and protocols
  • Identify commissioning date with building operation staff.
  • Confirm completion of all TDS and ETS construction and pre-commissioning work.
  • Commission ETS and confirm system operation alongside building operation staff.
  • Complete review of billing with customers’ accounting group prior to COD.
  • Declare Commercial Operations Date (COD).
  • Demobilize from site.
  • Provide the customer with Turn-over Package which includes the following:
    •  As-built drawings
    •  Emergency contacts and protocols
  • Introduction to the plant operations team and contact information for plant staff.
  • Provide contact information for billing and payment-related matters.
  • Provide contact for any commercial and customer service-related matters.

FAQ

Got a Question?

When connecting to the DES, CDHI will be responsible for the following:

  • The design, installation, operation and maintenance of the ETS.  
  • Installation and maintenance of the primary DES thermal distribution piping to the ETS.
  • Supply and maintenance of strainers on each heat exchanger’s DES and customer side.
  • Temperature transmitters, pressure gauges, temperature gauges, control valves, energy metering equipment, and control panels for the ETS.

In addition to the gains in operational efficiency and positive environmental impacts of connecting to a DES, there are architectural and mechanical engineering benefits as well. Unlike conventional boiler heating systems, integration to our DES does not require any additional mechanical room space on the upper floors of your building. Rentable space in these prime locations can now be available to generate revenue for the property’s lifespan.  

Energy transfer stations need substantially less space than a conventional boiler room system requires, freeing up valuable square footage. Typical footprints of ETS range from 10 to 15 square meters, dependent on thermal load, and are generally located in the basement close to an outside wall, i.e. basement mechanical room. 

CDHI will work closely with your mechanical engineering contractor to provide guidance on reducing the complexity of your building thermal distribution systems and to ensure integration with the DES is seamless.

As a building developer, you will be responsible for designing and installing the building’s HVAC systems. By connecting to the DES, the following conventional building systems will not be required:

  • Boilers, furnaces, heat pumps, domestic hot water heaters, and electric baseboard heaters. 
  • Natural gas service to the building for heating purposes.
  • Stacks or breeching are normally required for a conventional heating system. 

While all your building heating requirements are to be supplied by the DES, your building will still require an internal thermal distribution system that’s much the same as required for traditional self-generation (boilers).  This system includes:

  • Internal distribution pumps and piping.
  • Heating elements like air-handling unit coils, foil-coil units, perimeter baseboard or in-floor radiant heating systems.
  • Other components necessary to connect the hydronic heating and domestic hot water to the ETS.