National Federation of the Blind
Energy Upgrades and HVAC System Retro-Commissioning Project
Faced with high energy costs and operational issues that plagued the building since it opened, the National Federation of the Blind (NFB) and building owner Jacobus Tenbroek Memorial Fund turned to Global Facility Solutions (GFS) to provide turn-key retro-commissioning services. GFS designed and implemented a facility upgrade at NFB’s Jernigan Institute located in Baltimore, Maryland.
GFS teamed with Electrical Automation Services, Inc. (EASI) to develop an energy upgrade and HVAC system retro-commissioning plan to improve system operation and reduce deficiencies with the central chillers, boilers, air systems and building controls.
As part of the turn-key implementation, GFS procured and managed all subcontractors necessary to complete the recommended scope of work. EASI performed the upgrade of the DDC Control System including retro-commissioning of existing controls.
The NFB project plan:
- implement piping modifications to chiller plant to improve flow & loading on chillers
- modify heating water system to create a primary/secondary distribution system with variable speed drives & hot water reset
- re-commission DDC controls on mechanical systems
- re-balance air & water systems to match current building loads
Scope of work:
- energy auditing
- variable frequency drives
- systems engineering
- DDC control upgrades
- project management
- mechanical systems revisions
- air & water balancing
- O&M documentation
- on-going performance measurement
“By teaming with EASI and the NFB facility group, we were able to identify significant savings opportunities within the facility and correct operational issues that have been plaguing them since the building was opened 5 years earlier,” says Robert K. Calloway, PE, president.
“The key here is that it’s not always the older buildings that need help, new buildings (those under 5 years of age) may have significant opportunities for energy savings as well.”
Project savings & results:
Since the turn-key retro-commissioning project began at NFB’s Jernigan Institute in Baltimore, energy reports measure an 18% reduction in electricity consumption and over $45,000 in annual cost savings. Project results include:
- Improved building comfort & operations with corrected operations & maintenance issues.
- Reduced energy consumption & costs with systems operating at optimal performance.