new xcel energy process efficiency - utility exchange · 2017. 11. 12. · xcel energy’s pe...
TRANSCRIPT
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
[email protected], (303) 294-2133
Chandan Rao, President, Graphet Inc.
[email protected], (513) 685-0059