The Weidt Group - centerpointenergy.com · 3 Energy Design Assistance The Weidt Group © 2013 What is Energy Design Assistance Why do it Where it is available Who provides it

1 Energy Design Assistance The Weidt Group © 2013 Copyright © The Weidt Group 2013, All Rights Reserved

The Weidt Group

The Company for Energy Decision Makers

®

twgi.com

Collaboration

Energy Design sm

Analysis Research

2 Energy Design Assistance The Weidt Group © 2013

Energy Design Assistance

Program Introduction


What is Energy Design Assistance

Why do it

Where it is available

Who provides it

EDA Overview

Program Description

Program Process and Components

Questions

Energy Design Assistance Today’s Agenda


Energy Design Assistance Reducing Energy Use

10 Overview © 2010

THE WEIDT GROUP®

tomorrow to day

0%

10%

20%

30%

40%

50%

60%

70%

2010 2015 2020 2025 2030

ContextEnergy Codes are Getting Stricter

Architecture 2030 Goals

ASHRAE 90.1-2007

ASHRAE 90.1-2004

Year

% E

nerg

yU

se

Co

mp

ared

to

Exis

tin

g

Bu

ild

ing

s

(CB

EC

s 2

00

3)


Energy Design Assistance Reducing Energy Use

INTEGRATED DESIGN Energy sources to

fuel systems

Wood

Sun-active heat

Sun-photovoltaics

Wind generation

Solar electricity

Gas co-gen

Micro turbines

Fuel cells

Use appropriate

sources of energy

1% - 5%

Efficient systems

meet the load

Envelope

Daylighting

Lighting

HVAC

Controls

District heating

Domestic hot water

Use simple, cost-

effective systems

15% - 40%

Functionality Efficiency

Comfort

People run the

systems

Schedules

Controls

Maintenance

Setpoints

Windows

Equipment

Education

Ongoing M&V

Operate the

building well

10% - 20%

Building design fixes

the load

Building shape

Building volume

Glass location

Glass area & type

Insulation values

Thermal mass

Lighting concept

Mechanical concept

Minimize load as a

first priority

10% - 20%


Energy Design Assistance Goal

The Goal of the EDA program is to:

Provide timely energy results on a wide range of design options

Early enough so that those options are still viable within the context of project design and construction

Resulting in best use of a projects resources to reduce energy use.

Energy Use Savings – kW, kWh, therms, kBtus

Energy Cost Savings – dollars

Best result for the dollars invested - payback


Energy Design Assistance Achieving the Goal

Design Phase - Comparative Energy Information

Individual Components

Envelope – Insulation, Glazing, Air-tightness

Lighting – Lighting Design, Controls, Daylight Harvesting

HVAC – Heating, Cooling, Outside Air, Heat Recovery

Service Hot Water

Plug Loads

Integrated as a Complete Facility

Whole Building Solution Results

Incentives to reduce cost of implementation


Energy Design Assistance Achieving the Goal

Documentation Phase

Establish a Basis of Design

Provide a resource for changes

Check the As-Specified Performance

Construction Phase

Verify the components are built and operating

Determine the As-Built Performance

Pay the Incentive


People

65 architectural, engineering, software

Locations

Principal office – Minnetonka, MN

Des Moines, IA; Denver, CO; Madison, WI

Utility Clients

CenterPoint Energy - MN

Xcel Energy - MN, CO and ND

Ottertail Power - MN

MidAmerican Energy - IA, SD and IL

Alliant Energy IPL - IA and MN

Black Hills Energy - IA and CO

Energy Design Assistance The Weidt Group – The Provider


Energy Design Assistance What is it Summary


Whole Building Energy Savings

Comparative Energy Information for Decision Making during the design sequence

Updates of energy efficiency during Construction

Incentives are based upon modeled whole building energy savings

Energy Design Assistance is Not

A Prescriptive Rebate

Based upon individual component efficiency

For projects past the design phase



Program Description


Energy Design Assistance Program

Availability

Projects with participating Electric Utility

Xcel Energy

Ottertail Power

Projects greater than 20,000sf

New Construction or Major Renovation

Project Qualifies for CIP Incentives

Three Tracks

Basic – most projects

Quick – smaller, fast track, not complicated

Enhanced – deeper savings, seeking certification



Baseline

CenterPoint Protocol (ASHRAE 90.1 – 2004 base)

Energy Model

DOE-2 energy modeling engine

Implementation Costs

Project Team

Weidt Group Defaults



Incentives

Energy Modeling and Consulting Fees

Design Team Reimbursement

Based upon project size, shared with joint utility

Construction Incentive

Based upon Energy Saved compared to Baseline

CenterPoint Incentive $3.50 per annual dekatherm saved

Electric Incentive by Joint Utility

Minimum Gas Savings - TBD



Process and Components


CD Review

Energy Design Assistance Basic EDA and Enhanced EDA Process

Oper

CA

CD

DD

SD

PD Predesign Goal Setting

Building Massing Analysis

Daylight Analysis

HVAC Analysis

Systems Optimization Analysis

On-site Verification

Enhanced EDA Basic EDA

Systems Optimization Analysis

CD Review

On-site Verification

Certification Documentation


Energy Design Assistance Who is involved

The Design Team (A/M/E and Estimator)

Design

Strategy Definition

Incremental Costs

Owner

Strategy Implementation

The Utility

Incentive Payment

Design Team Reimbursement

Consultant Fees

The Weidt Group

Energy Consulting and Modeling

Process Management

What you cannot

enforce, do not

command.

-Sophocles


Energy Design Assistance Process – Basic Track

Application

Online at ?Energy Design Assistance Application?

Building System Optimization, 6-8 weeks

Introductory Meeting

Strategy Results Meeting

Bundle Results Meeting – Bundle Selection

Verification

Bundle Requirements Document

Construction Document Review

Final Verification at Building Completion

Incentive Payment


Building System Optimization Introductory Meeting

Strategy

IDEnvelope Insulation Strategies Baseline Strategy Level Notes

EWC00 Baseline wall assembly R-11.9 R-11.9

EWC01 R-16 wall assembly (Headhouse) R-11.9 R-16

EWC02 R-20 wall assembly (Headhouse) R-11.9 R-20

ERC00 Baseline roof assembly R-23.3 R-23.3

ERC01 R-16 roof assembly (Headhouse) R-23.3 R-16



Strategy

IDOther Envelope Strategies Baseline Strategy Level Notes

EWTC1 Thermal Curtain No curtain Thermal

EWSC1 Shade Curtain No curtain Shade

Strategy

IDGlazing Strategies

Unit

U-Factor

COG

U-FactorSHGC

Visible

Trans.

W5101 Baseline Roof Glazing 0.00 1.10 0.00 0.00

W5201 Design Roof Glazing (double wall acrylic) 0.00 0.60 0.00 0.00

W5301 Baseline Wall Glazing 0.00 1.10 0.00 0.00

W5401 Design Wall Glazing (double wall acrylic) 0.00 0.60 0.00 0.00

W5501 Baseline Garage Door 0.00 0.50 0.00 0.00

W5601 Improved Garage Door 0.00 0.06 0.00 0.00

Strategy

IDGlazing Design Strategies Sill / Head Ht. Notes

WGC02 Replace glazing with 2'-6" metal panel 2'-6" Baseline has glazing to grade

Strategy

IDDaylighting Control Strategies

Region of

buildingDaylight Control Notes

D3301 Daytime Daylighting Control Production TBD

2. 50 – 70 Strategies Envelope Glazing Daylight Harvesting Lighting Controls Lighting Design Cooling Efficiencies Heating Efficiencies Outside Air Strategies Service Hot Water Plug Load

1. Building Geometry Building Orientation Building Fenestration Building Use


Building System Optimization Strategy Results Meeting

4

12

2. Integrated Results

Dollar Savings

Dollars Added

Pollution Abated

Projected Incentive

1. Strategy Level Results

Peak kW

Annual Energy

Annual kWh

Annual MMBTU


Building System Optimization Bundle Results Meeting

2. Incentive

Simple Payback

1. Whole Building Results

Peak kW

Annual Energy

Annual kWh

Annual MMBTU

$56,1

27

$17,5

93

$16,0

04

$14,0

26

$4,8

33

$3,6

07

$3,5

76

$2,3

13

$10,6

99

$9,0

24

$8,9

16

$8,7

13

$4,7

33

$2,3

73

$1,9

47

$1,9

31

$6,9

71

$6,9

71

$6,9

71

$6,9

71

$1,3

75

$671

$1,3

42

$1,3

42

$84

,73

8

$34

,62

5

$38

,75

5

$40

,91

0

Baseline

Bundle 1

Bundle 2

Bundle 3

Heating Cooling Fan/pump Lights Equip. DHW Total


Building System Optimization Construction Documents Review

1. Updated Results

Strategies Noted

Strategies Missing

Energy Savings

Potential Incentive


Building System Optimization Final Verification

1. Final Results

Strategies Built

Energy Savings

Incentive


Energy Design Assistance Summary

Whole Building Savings

Not a Prescriptive Rebate

Projects

Joint territory with participating Electric Utility

20,000 sf new or major renovation

Just starting detailed design work

Application

Online at ?Energy Design Assistance Application?



Questions ????


Thank You

The Weidt Group

The Company for Energy Decision Makers

®

twgi.com

Brian Wass, AIA, LEED AP

[email protected]