new xcel energy process efficiency - utility exchange · 2017. 11. 12. · xcel energy’s pe...

Xcel Energy Process Efficiency

Achieving

Sustainable Energy

Management

Practices

September 25, 2014

Aspen, Colorado

Problems cannot be solved at the same

level of awareness that created them. –

Albert Einstein

You never change things by fighting the

existing reality. To change something, build

a new model that makes the existing model

obsolete - Buckminster Fuller

The secret of change is to focus all of your

energy, not on fighting the old, but on

building the new - Socrates

Culture of Change

Agenda

Process Efficiency Program Overview

Growth and success

Methodology & Benefits

Sustainable Energy Management Practices

Leveraging site upper management

Customized support for energy planning

Energy data mining effectiveness

Conclusion

Growth & Success

“This report told me things

I didn’t already know. Engineering firms ask

me questions and then regurgitate what I

tell them into a report.”

- Engineering Services Leader for large

glass bottle manufacturing company

“Xcel’s PE program and its support to drive

Sustainable Energy Conservation was a

key factor in selecting the Denver Site as

“the premier site for sustainability.”

- Corporate Energy Manager for large beverage manufacturing company

0.64%

of

portfolio

goal

1.55%

of

portfolio

goal

3.98%

of

portfolio

goal

3.23%

of

portfolio

goal

6.44%

of

portfolio

goal

9.97%

of

portfolio

goal

*Portfolio goal is the total filed Business Electric DSM goal *Number of opportunities are ECO’s included in a customer’s energy

plan.

Xcel Energy’s PE Program Success Factors

Discipline – of continuous improvement

Collaboration – among Management, Subject Matter Experts, Site personnel

Data & Information Systems – to support reliable decision-making, easy retrieval and update

Tracking – Progress & Achievement

Process Efficiency Program Overview

Customer Benefits:

Compliments and strengthens

existing energy-efficiency activities

Builds management support and

creates understanding

Helps prioritize where you invest

resources in improving energy

Provides potential to earn financial

bonuses for exceeding annual

energy goals or for improving

entire systems

3-Phase Program:

Engaging Decision Makers

Total Utility Cost: ($)

Energy Baseline Model

Estimated Min Savings: ($)

Estimated Max Savings: ($)

Energy Plan

Short, Mid and Long Term Goals

8

Energy Efficiency Culture

** source EnVinta LLC

Sustainable Energy Practices

It is a culture of “excellence”

Contributes positively to the primary organizational

goals

Continuous improvement / Team work

Empowers change (disciplined, dynamic and

effective)

Sustainable Energy Practices Methodology

Data Capture

• Energy Data

• Weather

• Time Series Data

• Key Volume Indicators

• Equipment

• Systems

• Site History / Changes

Energy Data Mining – The Challenge

**Source: www.CreativeEducationFoundation.org

Billed Data vs Interval Data

Usage per day

Annual 3D Plot

Seasonal

Histogram

What about key volume indicators ??

By Billing Charges

By Meters Variation with weather

1/1/2012 – 2/24/2013

Benchmarking Metrics / Operational Excellence

Statistically Not Valid or Statistically Valid

Plant Electric Average Demand = 1031 + 171.5*Workdays + 1.013*Admissions – 0.7519*Registrations +

1.989*Surgeries + 21.81*CDD(50) + 16.66*HDD(50) + 20.45*WetBulbTemp

R-Squared = 0.93 +/- 15% = 99.52 +/- 10% = 97.15 +/- 5% = 79.10

Transforming Energy Data into Performance Efficiency

Conclusion

Thank You

Contact Information

Michelle Beaudoin, Product Portfolio Manager, Xcel Energy

michelle.m.beaudoin@xcelenergy.com, (303) 294-2133

Chandan Rao, President, Graphet Inc.

chandan@graphet.com, (513) 685-0059