GOC376892,GOC376895,GOC376903,GOC376905 - CGC Capitalization Projects

Below are our recommendations to PWGSC for the delivery of the energy-related projects at the Canadian Grain Commission starting in 2016-17.  BGIS was asked by PWGSC to add/re-schedule for 2016-17 a few energy-related projects (recommended in the 2010 energy audit) we are bundling a number of projects into one major recapitalization project.
 
The current projects in our 5-year BMP Capital Plan are as following:
GOC376892 Cooling Tower and Chiller Replacement
GOC376895 Boiler Replacement
GOC376903 BCMS Controls Upgrade
GOC376905 Rebuild or Replace 4 AHU’s
 
A full building mechanical recapitalization in this building presents some challenges due to the interconnected systems but we believe it is also the best solution for delivering all those major energy savings measures all at once as they’ll have an impact on one another depending on the design done by the consultant and whether or not the tenants decide to get involved in this project. 
 
To be able to do so, we recommend that the consultant first performs some keys assessments as part of the IAR process:

• Perform air balance of the entire building including a survey of tenant fume hoods. Survey to include all makeup and exhaust air flows including air infiltration and quantify the “stack effect” observed on the top 4 floors due to the large volume of air exhausted from the fume hoods located on the upper floors. 
• Perform a space use study for the mechanical areas in the building. It should include an optimization of the mechanical space use and include options for the location of the new boilers and chillers.
• Include options for rebuilding SF-1, 2, 3 and 7.  In particular SF-1, 2 and 3 should include new air dampers and controls, new premium efficiency fan equipped with VF drive, new coils and drain pans. Humidifiers and humidification boilers are only 4 years old and can be reused.
• For SF-3 options should be proposed to reduce or correct the “stack effect” caused by the lab floor exhaust.  Options to include optimized control of SF 3 air dampers or installation of a roof top makeup air fan to supply conditioned outdoor air to the labs and balanced with the fume hood exhaust air. This makeup air will supply SF-3 directly and will be balanced to reduce the negative pressure on the top 4 floors.
• Include a plan for a phased installation of a new BAS system to replace the existing Niagra DDC and Johnson Controls pneumatic system. The new equipment should be added to the new BAS in phases as it is replaced. System should be expandable to integrate a new lighting control system in a future project.  Review all building systems and make recommendations of all separate systems that should be added to the BAS upgrade.
• Include options for installation of new high efficiency chiller and cooling tower.  They are both currently in the mechanical room on 12th floor. It would also be very difficult to get a new chiller into the mechanical room on the 12 floor due to limited accessibility. Review available mechanical space and provide optimum location for new equipment.
• Review building code and fire code to determine separation requirements for boilers and chiller.
• Include options for installation of new high efficiency condensing (or near condensing) boilers.
• Include options to integrate the remaining AHU’s: AHU 1 and 2, 8 and the Buhler mill, induction heating loop and radiation heating loop onto the new BAS.
• Include life-cycle cost analysis, estimate of energy, GHG and cost savings for each option in the IAR.
• Include incentives estimate available with MB Hydro.
• Scope is not limited to these items only and will require additional investigation from awarded consultant.

• Phase 1: Install backbone of a new BAS system, Rebuild SF-3 to work with the fume hood variable control system.
• Phase 2: Install new chiller and cooling tower. Connect the new chiller and cooling loop to the new BAS.
• Phase 3: Install new boilers in the existing 12th floor mechanical room and connect to the DDC.
• Phase 4: Rebuild SF-1, 2 and 7 and connect them to the BAS. Also migrate the other AHU’s and remaining building systems to the new BAS. Remove the old Niagra and Johnson Controls pneumatic system.