Demand-Side Management: Part of a Regional Water Supply Plan

1. Demand-Side Management: Part of a Regional Water Supply Plan Dave Bracciano Blue Spring Working Group Deland, Fl September 9, 2010

2. Highlights of Presentation Agency background Historical conservation goal development & role Status of existing plan update Outstanding issues

3. Tampa Bay Water-Background • Regional water wholesaler serving 6 Member Governments in the Tampa Bay region • Growing population? • 2.4 million people served • Member demand ? • Averaged about 240 mgd • 2009 229 mgd 2010 222 mgd • Economy creating supply paradigm

4. Tampa Bay Water • Mission • To provide our members with reliable supplies of high-quality water to meet the area’s present and future needs in an economically and environmentally sound manner.

5. Generally Why Create Goals and Implementation Strategies? • Permitting requirements • Lower future average demand increases • Reduce current demand • Lower peak demands • Environmental impacts/sustainability

6. Tampa Bay Water’s Historical Conservation Goals • Master Water Plan Adopted December 1995 with conservation goals • Demand Management Plan, 1997 • Demand management program developed in 1998 (based on use of best management practices) • Partnership Agreement with SWFWMD and Members adopted in 1998 • Compile member five year conservation plans, 1999 to date (annually)

7. Long-term Water Supply Plan Protect Current Supply – source water protection Regional Reclaimed Water Planning Develop Future Supply – 7 water supply projects selected Conserve Current Supply - Demand Management Plan update

8. Water shortage response versus long-term water use efficiency • Water shortage management • Tampa Bay Water’s Water Shortage Mitigation Plan (WSMP) • Member government actions • District “orders” • Long term water use efficiency • Regional Demand Management Plan • Master Water Planning Process

9. Members have embraced conservation • Wide range of options have been implemented • Estimated 26 mgd of potable demand offset between 1996-2009 • Savings to-date establish baseline for DMP

10. Conservation can defer capital investments and reduce future needs Future Need MGD Time

11. Regional demand management benefits • Future supply needs can be met through new supply projects and/or conserved water • Conserved water has economic benefits • 1 mgd saved = $10m capital cost deferment • 1 yr. deferral of $100m capital project saves $5m in interest • Avoided cost for energy and chemicals

12. Electric Cost by Supply Type

13. Integrated water supply planning includes water use efficiency Identify and evaluate regional water conservation potential Integrate demand management into water supply planning process Explore implementation options Seek Board direction and policy guidance Existing and Potential Supply Portfolio Existing and Potential Efficiency Portfolio Decisions and Policy Demand Forecast Master Water Plan

14. Other major water suppliers have successfully used this approach • East Bay Municipal Utility District • Seattle Public Utilities • New York City • Metropolitan Water District of Southern California • Southern Nevada Water Authority • City of Austin Public Utilities

15. EBMUD relies on conservation for 13% of their water supply

16. Conservation projects will be integrated into the project selection process Conservation Projects Supply Projects Master Water Plan Update Project development System Configuration III Board selects projects

17. Integrated planning approach supports apples-to-apples comparison of alternatives Evaluation Criteria • Selected conservation projects must be: • Proven technology • Measurable (cost, reliability, reach, etc.) • Capable of deferring capital expenditure (reliable) Environmental Stewardship Cost Reliability Water Supply Option 1 Conservation Option 2 Water Supply Option 3

18. Water conservation projects will be compared using the same criteria, including cost 18

19. Principal Work Assignments Project Management and Meetings Conduct Regional Baseline Water Demand Profile Identify and Evaluate Demand Side Management Alternatives Formulate and Assess Alternative DSM Strategies Formalize Program Recommendations

20. Project Tasks • Establish regional water demand profile • water use patterns and “end-use” analysis • evaluate “market” for conservation technology • estimate savings • Identify conservation alternatives • literature review • establish evaluation criteria and metrics • evaluate and rank alternatives

21. Project Tasks cont. • Formulate and assess conservation program alternatives • estimate cost-effectiveness • develop implementation and water savings scenarios • recommend strategies • Program recommendations • develop regional goals • implementation strategies • monitoring and evaluation • prepare demand management document

22. What Do I Think We’ll See in the Crystal Ball? Considerable conservation technologies installed-actual savings not well quantified? Passive programs (technology/stds.) save water in new growth and retrofits? Additional demand management available all sectors and is cost effective? Increasing outdoor water use efficiency can increase reliability of supply?

23. Board input will be needed throughout project Adopt demand management plan Avoided supply analysis results Conservation strategies and goal development 2010 2011 2012 Task Description Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Conduct Regional Baseline Water Demand Indentify and Evaluate Demand Side Management Alternatives Formulate and Assess Alternative DSM Strategies Formalize Program Recommendations

24. Questions? dbracciano@tampabaywater.org www.tampabaywater.org