Retro-Commissioning the Trend in Energy Efficiency

Presented By:

Jasmine Engineering

Retro-Commissioning

Presentation Overview

History of Commissioning

Types of Commissioning

Retro-Commissioning Benefits

The Retro-Commissioning Process

Maintaining Retro-Commissioning Benefits

Questions / Contact Info

History of Commissioning

1980s 1990s 2000s

ASHRAE begins receiving Owner performance complaints

1970s

History of Commissioning

1982 ASHRAE develops formal guidelines for commissioning

1984 University of Wisconsin (Madison) rolls-out commissioning courses

1989 ASHRAE publishes HVAC Commissioning Guideline

1980s 1990s 2000s1970s

History of Commissioning

1980s 1990s

1994 Presidential Executive Order 12902 requires commissioning for federal agencies

1996 ASHRAE publishes Guideline 1-1996 The HVAC Commissioning Process

2000s1980s 1990s 2000s1970s

History of Commissioning

1980s 1990s 2000s

2004 USGBC requires Retro-Commissioning to

certify a LEED®-EBOM building

2005 ASHRAE publishes Guideline 0-2005

The Commissioning Process

2008 BCA issues Retro-Commissioning Best Practices

2009 NEBB publishes Retro-Commissioning Standard

ASHRAE administered the first Commissioning

certification exam CPMP

1980s 1990s 2000s1970s

Types of Commissioning

Quality Assurance Process that ensures the planning, construction & maintenance is performed

according to the Owner’s Project Requirements

Commissioning (New Building)

Retro-Commissioning (1st Time for Existing Building)

Re-Commissioning(Previously Commissioned Building)

Retro-Commissioning Benefits Owner

Reduces Operating costs

Reduces Operations & Maintenance costs

Reduces liability risk of sick building syndrome

Resolves deficiencies that occurred during construction

Maximizes life of equipment

Increases occupant productivity

Enhances property values

Retro-Commissioning Benefits O&M Staff

Maintain properly operating equipment & systems

Utilize properly operating control system

Reduces equipment/component failure

Provides a benchmark for future systems evaluation

Improved building documentation

Reduction of occupant complaints

Retro-Commissioning Benefits Occupants

Enhanced comfort Humidity Hot/cold Balanced air Outside air

Enhanced indoor air quality

Content employees

Increased comfort

Candidates for Retro-Commissioning

Poor equipment and control systems integration

Energy Star Rating below 70

High energy use

High building infiltration

Excessive equipment failure

Frequent occupant complaints

System performance does not comply with OPR

Retro-Commissioning Process

Four Phases

Investigation Investigation Implementation Implementation Turn Over Turn Over Planning Planning

Phase 1Phase 1 Phase 2Phase 2 Phase 3Phase 3 Phase 4Phase 4

Phase 1: Planning

Identify known deficiencies

Develop OPR

Collect building documentation

Develop Retro-Commissioning Plan

Assemble Commissioning Team

The Retro-Commissioning Team

DesignProfessionals

DesignProfessionals

Commissioning Authority

Commissioning Authority

Owner’s Point of Contact

Owner’s Point of Contact

Utility Provider Utility Provider

MEP ContractorsMEP Contractors

O&M StaffO&M Staff

Testing & Balancing Contractor

Testing & Balancing Contractor

Control Contractor

Control Contractor

Phase 2: Investigation

Review facility documentation

Energy usage

Drawings

Sequence of operation

Test & Balance reports

O&M manuals

Phase 2: Investigation

Conduct facility assessment

Equipment

Ductwork, piping and other components

Energy Management System

Phase 2: Investigation

Identify improvement options

Simple & easy resolutions

More complex resolutions

Capital improvements

Develop Investigation Report

Phase 3: Implementation

Prioritize Upgrades

Develop Budget

Finalize Implementation Plan

Implement improvements & upgrades

Functional Performance Testing

Phase 4: Turn Over

Develop Retro-Commissioning Report

Compile Systems Manual

Develop Re-Commissioning Plan

Conduct O&M staff training

Conduct close-out meeting

Maintaining Retro-Commissioning Benefits

Implement Re-Commissioning Procedures

Perform maintenance tasks

Continuous O&M Staff training

Monitor system/equipment performance

Monitor indoor air quality & thermal comfort

Retro-Commissioning Costs

The Lawrence Berkeley National Laboratory, a U.S. Department of Energy lab, is partnering with the Portland Energy Conservation Inc.

Retro-Commissioning Costs

How can you reduce energy and operating costs?

Lawrence Berkeley National Laboratory 2004 study

Average cost $0.30/sq ft

13-month payback

Questions

Jasmine Engineering

San Antonio Office Austin Office115 E Travis, Suite 1020 100 Congress, Suite 2000San Antonio, TX 78212 Austin, TX 78701(210) 227-3000 (512) 326-2900

www.jasmineengineering.com