ENERGY STAR Labeled Building Profile

Capella Tower
225 South Sixth Street
Minneapolis, MN 55402
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Managed by Ryan Companies US, Inc., The Capella Tower at 225 South Sixth is a 1.4 million-square-foot office tower in downtown Minneapolis, and one of the area's most prestigious properties. Pei, Cobb, Freed & Partners' design is a dazzling assemblage of rectilinear and cylindrical forms, incorporating both a 58-story tower and the 18-story Park Building. The visually complex exterior wraps around three interior atria, two fountains, and a 75-foot-high winter garden, which provides soothing glimpses of green during the long Minnesota winters.

The Capella Tower at 225 South Sixth earned the ENERGY STAR for superior energy performance as a result of a five-phase program of retrofits and upgrades to the building's energy-consuming infrastructure. In the first phase, 15,000 light fixtures were upgraded from 40-watt bulbs to electronic ballasts and high-efficiency T8 lamps. In Phase II, all 100-watt incandescent bulbs in building common areas were converted to 15-watt PL-type fluorescent lamps. The third phase of energy efficiency retrofits replaced 450 par 90-watt fixtures with SKS 23-watt fixtures and incorporated light sensors to automatically control light intensity based on the amount of available daylight. The fourth and fifth phases addressed are The Capella Tower at 225 South Sixth's HVAC systems, replacing existing compressors with high-efficiency units, and in the final phase, installing variable frequency drives (VFDs) on air handling units on each floor. These VFDs allow air handling units to operate at levels that more closely correspond to actual demand. The existing energy management system has been upgraded to utilize all the features to the fullest. VFDs have been added to hot and chilled water pumps in 2009 and tied into the energy management system (EMS) for optimum savings.

For more information on the sustainability efforts at The Capella Tower, please visit www.capellatowerat225.com/Sustainability.axis.

Communications:

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Testimonial:

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Please note: Narrative information in this profile has been provided by Minneapolis 225 Holdings LLC or a representative of this facility. Other building information was verified and submitted to EPA at the time of application. Building energy performance, operating characteristics, and ownership/management may be subject to change over time.

Building Owner:*
Minneapolis 225 Holdings LLC

Property Manager:*
Ryan Companies US, Inc

Year(s) Labeled :
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
1999

Facility Type: Office

Total Floorspace: 1636050 sf

Year Constructed: 1992

Contract Type: Multiple Contractor Contracts
Financing Type: Operating Lease

Technologies Used:

Stage 1-Recommissioning

    + Adjust Dampers
    + Calibrate Thermostats
    + Chiller Tune-Up
    + EMS Audit
    + Employee/Tenant Energy Education Program
    + Heat-Exchanger Tune-Up
    + New or Revised EE Maintenance Practices
    + Reset Automated Controls (i.e. Lighting Timers)
    + Steam Trap Maintenance
    + System Balancing
    + Use of PC and Monitor Power Management Software

Stage 2-Lighting

    + Compact Fluorescents
    + Electronic Ballasts
    + Planned Lighting Maintenance Program
    + T8 or T5 Lamps

Stage 3-Load Reductions

    + Control Ventilation Rates

Stage 4-Fan Systems

    + Improved Fan Controls

Stage 5-Heating and Cooling Plant

    + Economizer Cooling
    + Variable Frequency Drives for Fans, Pumps, and/or Cooling Towers

Other Technologies/Strategies

    + Rate Change

For More Info:
Ted Campbell
General Manager
Minneapolis, MN 55402
(612) 355-5311
ted.campbell@ryancompanies.com