1. Energy Management at DMWW
ISO – Better Plants - SEP
Iowa Industrial Energy Group Spring Conference
October 11, 2016
Thank you – It’s a pleasure to have the opportunity to update you on Energy Management.
Please feel free to ask questions at any time.

2. DMWW History
Established in 1871 – 2 mgd

3. Fleur Drive Water Treatment Plant – 80 mgd
DMWW Facilities
Fleur Drive Water Treatment Plant – 80 mgd

4. McMullen Water Treatment Plant – 20 mgd
DMWW Facilities
McMullen Water Treatment Plant – 20 mgd

5. Saylorville Water Treatment Plant – 10 mgd
DMWW Facilities
Saylorville Water Treatment Plant – 10 mgd

6. Aquifer Storage & Recovery
DMWW Facilities
Aquifer Storage & Recovery

7. Over 30 Additional Brick & Mortar Locations
DMWW Facilities
Over 30 Additional Brick & Mortar Locations
32 brick & mortar facilities

8. Red line in energy – left y axis
Green line is pumpage – right y axis
Pumpage in 2013, 2014, & 2015 was down but energy costs remained constant.

9. History With MidAmerican Energy
MidAmerican Energy Audit
Internal pump antifriction coatings
Lighting upgrades
HVAC upgrades
GOF OCC lighting controls
Numerous premium efficient motors & VFDs
DMR 1750hp VFD
History:
1980s – Looking at demand rates and trying to control
1990s – Lighting and efficient motors
2000s – Slide text

10. History With MidAmerican Energy
MidAmerican Energy Partner
Energy Audits of FWTP, MWTP, & GOF
Additional lighting upgrades
Operational changes
Reduced winter heat setpoints in unoccupied areas
Lower compressed air pressure
Consistently maintain plant pumping operations at the minimum required pressure

11. 2000 – 2014 – Same pumpage but a 26% increase in energy cost?

12. 2014 Des Moines Water Works joins DOE Pilot Program to implement
ISO and Superior Energy Performance
Water and waste water systems use 2% of all energy in the US and by EPA estimates – adds >45 million tons of greenhouse gases annually.

13. PROVIDES ORGANIZATIONS WITH AN INTERNATIONALLY RECOGNIZED FRAMEWORK FOR IMPLEMENTING AN ENERGY MANAGEMENT SYSTEM (EnMS).

14. ISO 50001 Framework Develop an energy policy
Develop targets and objectives to meet the policy
Use data to better understand and make decisions about energy use
Measure the results
Review how well the policy works
Continually improve energy management

15. Dr. W. Edwards Deming’s PDCA

17. DOE Resources & Tools Technical Support Training & Workshops
EnMS Development
ID Energy Saving Opportunities
Developing & Tracking Performance Metrics
Industrial Assessment Center
Technical Account Manager

18. DOE Resources & Tools eGuide EnPI Tool Webinars
Technical Guidance Docs
Peer-to-Peer Networking

19. Accomplishments Learned energy management system basics
Secured top management commitment
Established an energy team
Identified the scope and boundaries
Defined an Energy Policy
Created organizational awareness

20. Accomplishments Identified legal requirements
Identified energy sources and uses
Collected historical energy bills and other data
Analyzed energy consumption and costs
Determined significant energy uses
Determined performance metrics

21. Accomplishments Creating Energy Manual
Communicating with suppliers, contractors, and employees
Participating in DOE sponsored training with other pilot program members
Installed >50 electric submeters and integrated with SCADA

22. Accomplishments Audit utility bills in EAM
Developed energy charts for the EAM Start Center
Developing energy monitors for each treatment plant

23. EAM Start Center

24. EAM Start Center

25. 2000 – 2014 – Same pumpage but a 26% increase in energy cost?

27. In Progress Identify energy efficiency opportunities
Create and execute action plans
Address training needs
Establish operational controls
Successfully pass 3rd party audit and receive ISO certification

28. Ongoing Considerations
Measure, monitor, and analyze performance metrics
Utilize EAM & SCADA for analytical tools
Respond to deviations in energy performance
Utilize EAM & SCADA to flag deviations
Plan & conduct internal audits
Take action to correct and prevent nonconformities

29. Ongoing Considerations
Conduct management review of performance
Recognize success and communicate results
Take action to continually improve

30. Cost to date To date, operational costs total $28,000
Labor, training, books, etc.
Two capital projects
Install submeters - $110,000
Control Center energy monitors - $22,000

31. After ISO 50001 Certification
Certification Program for Energy Performance Verification
Transparent & Globally Accepted
Establishes a Verification Protocol To Prove Energy Performance Improvements
Originally Developed With Heavy Industry In Mind
Around Thirty Companies Have Achieved Certification