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MODULE 14: PROCUREMENT METHODS AND IECC OVERVIEW

A c c r e d i t e d T e x a s E n e r g y M a n a g e r

Outline

❯Procurements & Delivery Methods ❯Procurement Methods – Professional Services ❯Procurement Methods – Performance Contracts ❯IECC Overview 2012 ❯IECC Building Envelope Requirements (Section C402) ❯IECC Building Mechanical Systems (Section C403) ❯IECC Simple Mechanical Systems (Section C403.3) ❯IECC Complex Mechanical Systems (Section C403.4) ❯IECC Service Water Heating Systems (Section C404) ❯IECC Power and Lighting Systems (Section C405)

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Procurement & Delivery Methods

❯Construction Projects Delivery Methods

• Recap (Project Delivery, Financing/Funding)

› Design-Bid, Design-Build, PC, CMR, JOC, Cooperative Purchasing Agreement › Reference Project Delivery & Financing section for more information and excepts from the Texas Government Code

❯Procurement Methods

• Competitive Process
• Consult Purchasing Officials

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Procurement Methods – Professional Services

❯The following Texas Government Codes provide guidance when

procuring Professional and Consulting Services

❯Education Code

• Title 2, Subtitle I, Chapter 44 Fiscal Management

❯Government Code

• Title 10, Subtitle F, Chapter 2254 Professional and Consulting Services

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Procurement Methods – Professional Services (cont.)

❯“Professional Service” is defined as services provided by the following

licensed or registered professionals

• CPA
• Architect and Landscape Architect
• Land Surveyor
• Physician and Surgeon
• Optometrist
• Professional Engineer
• Real Estate Appraiser
• Registered Nurse

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Procurement Methods – Professional Services (cont.)

❯Key Guidelines When Procuring Professional Services ❯Under the Texas Government Code, when procuring professional

services from an Architect, Engineer, or Surveyor, a public entity shall:

• First select the most highly qualified provider, based on qualifications and

demonstrated competence

• Then attempt to negotiate on price

❯If no agreement is met, the public entity must select the next highest

qualified professional and repeat steps 1 and 2

❯Lastly, a public entity shall not undergo contract negotiations with

more than one professional at the same time

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Procurement Methods – Performance Contracts

❯Local Government Code

❯Title 9, Subtitle C, Chapter 302 Energy Service Performance Contract for

Local Governments

❯Title 2, Subtitle I, Chapter 44 Fiscal Management

• Subchapter Z – Miscellaneous Provisions

❯Provides guidance when undergoing a Performance Contract with an Energy

Service Contractor (ESCO)

❯Contract shall not exceed 20 years ❯Describes basis for guarantee, required performance bonds and method of

financing

❯Verification shall be in accordance with IPMVP and DOE guidelines

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IECC Overview 2012

❯Commercial Buildings ❯Chapters

• 1: Scope & Administration
• 2: Definitions
• 3: General Requirements
• 4: Commercial Energy Efficiency for Buildings
• 5: Referenced Standards
• Index

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IECC Overview 2012

❯Compliance Paths

• Prescriptive Method

› Requirements must be in every building design, unless an approved tradeoff is utilized or there is specific exemption in the code

• Mandatory

› Requirements must be met in every building design, no matter which compliance path is chosen

• Performance Based

› An overall performance requirement for the building that replaces individual prescriptive for systems and components

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IECC Overview 2012

A c c re d i t e d Tex a s E n e rg y M a n a ge r

IECC Overview 2012

❯Texas Climate Zones

• 2, 3, 4

› Warm-Humid › Moist (A) › Dry (B)

❯Climate zone used to determine application requirements

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Building Envelope Requirements (Section C402)

❯Insulation of Envelope (Prescriptive)

• Table C402.1.2 (U-Values) and/or C402.2(1) (R-Values)

❯Fenestrations (Windows, Non-Opaque Doors, Sky Lights)

• Table C402.3

❯Air Leakage (Mandatory, section C402.4.1)

• Air barrier caulking and weather stripping, outdoor air intakes and

exhaust, loading dock seals, vestibules, etc.

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Building Mechanical Systems (Section C403)

❯Mandatory Requirements for all Mechanical Systems

• HVAC Load Calculations and System Sizing

› Comply with ASHRAE standard 183

• Performance Requirements

› Table C403.2.3(1 through 8)

• HVAC System Controls
• Demand Control, Energy Recovery Ventilation System
• Duct/Plenum Insulation & Sealing, Piping Insulation
• Air, Hydronic System Balancing Requirements
• Fan Motor Requirements

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Simple Mechanical Systems (Section C403.3)

❯Simple Systems

• Unitary or packaged HVAC equipment
• Serves one zone and controlled by a single thermostat

❯Economizer Operation

• Economizer Requirements Table C403.3.1(1)
• Systems in Zones 2B, 3B, and 4B are exempt, if the minimum cooling

efficiency is improved by 10%, 15%, and 20%, respectively

❯Hydronic System Control

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Complex Mechanical Systems (Section C403.4)

❯Complex Systems

• Systems not covered under the “Simple” Systems definitions

❯Prescriptive System Requirements

• Economizer operation
• Variable Air Volume (VAV) fan control
• Hydronic System Control
• Hydronic Heat Pump Systems
• Heat Rejection Systems
• Multi-zone Systems

› Single and Dual Duct Systems

• Heat Recovery

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Service Water Heating Systems (Section C404)

❯Service Water Heating Equipment & Insulation (Mandatory

Requirements)

❯Performance Requirements

• Table C404.2

❯Temperature Controls

• Outlet temperature to lavatory in public facility shall be limited to 110F

❯Heat Traps ❯Piping Insulation ❯Hot Water System Controls ❯Pools

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Power and Lighting Systems (Section C405)

❯Mandatory Interior, Automatic, Daylight, and Exterior Lighting Controls ❯Interior Lighting Power Requirements

• Building Area Method (Table C405.5.1)
• Space-By-Space Method (Table C405.5.2)

❯Exterior Lighting Mandatory Requirements (C405.6)

• Minimum Efficacy of 60 Lumens/Watt (Lamps operating over 100W)
• Maximum Watts/Square of Linear foot, depending on Lighting Zone and

Application (Table C405.6.2(1&2))

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Sections C406 – 408

❯Additional Energy Efficiency Package Options (C406) ❯Total Building Performance (C407)

• Mandatory Requirements (C407.2)
• Performance-based Compliance (C407.3)

› Proposed building design should be shown to have an annual energy cost that is less than or equal to the annual energy cost of a standard building

❯System Commissioning (C408)

• Mechanical Systems Cx (C408.2)
• Lighting System Functional Testing (C408.3)

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Ashley Williams, MCRP & ATEM

❯ Texas Energy Managers Association ❯ Director of Curriculum and Certification ❯ awilliams@texasema.org

questions

e n e r g y m a n a g e m e n t p r o g r a m : f u n d a m e n t a l s a n d d e v e l o p m e n t

Texas Energy Managers Association

❯ www.texasema.org