# Presentation: 690756

## ASHRAE/IESNA Standard 90.1-1999

*Ronald E. Jarnagin*
*Pacific Northwest National Laboratory*
*Past Chair, ASHRAE SSPC 90.1*

***Introduction and Overview of ***
***Standard 90.1-1999***
***	******	******	***

**Notes:**
Introduce yourself and describe role in Program

Introduce Bryan and describe role of ESD

Introduce Ron and describe role of TPAC

The presentation:

	10 Minute Overview- Jeff Johnson
	45 Minute Program and Strategy - Program Team
	60 Minute Issues Discussion - Open Forum

Refer to Jack White presentation - new paradigm
BESP is an example of a Program that isoperating in that paradigm
	Customer Focus
	Federal/State  and Utility/Industry
To begin with, we have two simple goals .......

## 90 –1975 (first standard)
90A-1980 (past)
90.1–1989 (recent)
90.1–1999 (future)

- 90A-1980 (past)
- 90.1–1989 (recent)
- 90.1–1999 (future)

- Historical Perspective

**Notes:**
Sometimes the best way to understand a present situation is to view its history. To that end, we’ll spend a little time looking at past and present versions of Standard 90.1.
The standard is held jointly by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.... (ASHRAE) and The Illuminating Engineering Society of North America (IESNA).
It was first published in 1975, partially in response to the oil embargo. However, ASHRAE and IESNA also felt that the national impact of energy conservation was important enough to keep the standard active. 
In 1989, the second major (and currently enforced) version of the standard was published. We’ll touch on it briefly in just a moment.
Most of our time together will focus on the revision to 90.1-89. Officially, it’s designated as 90.1-1989R (revision). We’ll discuss its status, the topics identified as “mandatory” by the committee, and their potential impact outside the ASHRAE community.

##   U.S. Energy Policy Act 1992

- 90.1 equipment efficiencies = new manufacturing minimum
- States to meet or exceed 90.1-1989
- Government to evaluate revisions to 90.1
- May obligate states to upgrade codes

**Notes:**
the Energy Policy Act of 1992 indicates that states must have codes at least as stringent as 90.1–1989. It also says that when the standard is updated, the Department of Energy must evaluate those revisions. If the department agrees with them, it can require states to update their energy codes.

Clearly, the potential impact here in the United States is far-reaching.

## Summary of What’s New

- Summary of What’s New

- Extended scope and coverage (alterations and additions)
- Clearer, more enforceable requirements
- International units
- Expanded climate locations
- Simplified paths for compliance
- Reorganized for ease of use

## Simplicity of Standard 90.1

- Simplified Approach Option for HVAC
- One envelope table for a climate location
- One page Lighting requirements

- HVAC
- Envelope
- Lighting

##  Section 1 - Purpose

- ...provide minimum requirements for the energy-efficient design of buildings except low-rise residential buildings

## New buildings and systems
New portions of buildings and systems (additions)
New systems and equipment in existing buildings (alterations)
Excludes low-rise residential - (Standard 90.2)

- New *portions* of buildings and systems (additions)
- New systems and equipment in *existing* buildings (alterations)
- Excludes low-rise residential - (Standard 90.2)

- Section 2 - Scope

**Notes:**
The revision to Standard 90.1 expands its scope to include additions and alterations to existing buildings. This modification changed many people’s perception of the standard. 
It should be noted here that the standard does NOT apply to single-family houses, multi-family of three stories or less (low-rise residential buildings), or to manufactured housing.
Standard 90.2 applies to one- and two -family residential and low-rise residential buildings
Also exempt are buildings that do not use either electricity or fossil fuel and energy used for industrial or manufacturing processes
The scope also states that the standard contains criteria for determining compliance with the requirements of the standard

##   Section 3 - Definitions

- Definitions
- Abbreviations
-  Acronyms

**Notes:**
Source of definitions: various building codes, the ASHRAE Terminology Handbook, ASHRAE/IESNA Standard 90.1-1989, the IESNA Handbook, etc.......  Where appropriate, the SSPC used these sources, and as necessary, modified these definitions or defined terms not found in these sources.

## Section 4 - Admin. & Enforcement

- Compliance requirements
- new buildings and systems
- existing buildings and systems
- additions
- alterations (comply if you change it)
- Compliance documentation
- drawings, manuals
- labeling - envelope, mechanical

**Notes:**
Section 4 contains provisions related to the administration and enforcement of compliance with the Standard. 

## Comparison of Organization of Sections of Standard 90.1

- 4 – Compliance
- 5 – Electric power
- 6 – Lighting
- 7 – Auxiliary systems and equipment
- 8 – Building Envelope
- 9 – HVAC Systems
- 10 – HVAC Equipment
- 11 – SWH
- 12 – Energy management
- 13 -  ECB

- 4 – Administration and enforcement
- 5 – Building envelope
- 6 – HVAC
- 7 – SWH
- 8 – Power
- 9 – Lighting
- 10 – Other equipment
- 11 - ECB

_*90.1-1989*_

_*90.1-1999*_

## Compliance with Standard 90.1

- Mandatory Requirements

- Prescriptive Requirements, or

- Performance Methodology

- +

- +

## Energy Cost Budget

- Whole-building performance approach
- Allows tradeoffs between building functions
- Limits allowable energy costs of the design to those of a building meeting the standard

## This is a Consensus Standard!

- Many years in the making
- A full and open process
- A broad, balanced committee (72 members)
- Three public reviews
- Over 80,000 public comments
- Overwhelming consensus vote to publish