Water and Energy: Can we conserve both? Water Conservation: half-empty or half-full? Regional Webinar Series April 12, 2011

Transcription

1 Water and Energy: Can we conserve both? Water Conservation: half-empty or half-full? Regional Webinar Series April 12, 2011

2 Water and Energy: Can We Conserve Both- The View from the Water Supply Side Dave Bracciano Water Conservation: half-empty or half-full? IFAS Regional Webinar Series April 12, 2011

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

4 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 mgd mgd Economy creating supply paradigm New Port Richey Pinellas Co. St Petersburg Pasco Co. Tampa Hillsborough Co.

5 Tampa Bay Water Mission To provide our members with reliable supplies of highquality water to meet the area s present and future needs in an economically and environmentally sound manner.

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

7 Tampa Bay Water s Historical Conservation Goals

8 Tampa Bay Water s Historical Conservation Goals Master Water Plan Adopted December 1995 with conservation goals

9 Tampa Bay Water s Historical Conservation Goals Master Water Plan Adopted December 1995 with conservation goals Demand Management Plan, 1997

10 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)

11 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

12 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)

13 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

14 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

15 Members have embraced conservation Wide range of options have been implemented Estimated 28 mgd of potable demand offset between (19.75 MWH saved in 2010) Savings to-date establish baseline for DMP

16 Members have embraced conservation Wide range of options have been implemented Estimated 28 mgd of potable demand offset between (19.75 MWH saved in 2010) Savings to-date establish baseline for DMP

17 Conservation can defer capital investments and reduce future needs MGD Time

18 Conservation can defer capital investments and reduce future needs MGD Time

19 Conservation can defer capital investments and reduce future needs MGD Time

20 Conservation can defer capital investments and reduce future needs MGD Time

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

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

23 Conservation can defer capital investments and reduce future needs MGD Time

24 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

25 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 Demand Forecast Decisions and Policy Master Water Plan Existing and Potential Efficiency Portfolio

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

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

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

29 Integrated planning approach supports applesto-apples comparison of alternatives Environmental Stewardship Cost Reliability Evaluation Criteria Water Supply Option 1 Conservation Option 2 Water Supply Option 3

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

31 Water conservation projects will be compared using the same criteria, including cost Project $/1000 gallons Water Conservation $ $3.25 Small Footprint Reverse Osmosis Pinellas County $ $8.20 Tampa Bay Seawater Desalination Expansion $ $6.99 Gulf Coast Desalination $7.61 Additional Potable Groundwater from Existing Wells $1.24 Thonotosassa Wells $2.25 Alafia Expansion $ $10.26 Aquifer Recharge $ $

32 Water conservation projects will be compared using the same criteria, including cost Project $/1000 gallons Water Conservation $ $3.25 Small Footprint Reverse Osmosis Pinellas County $ $8.20 Tampa Bay Seawater Desalination Expansion $ $6.99 Gulf Coast Desalination $7.61 Additional Potable Groundwater from Existing Wells $1.24 Thonotosassa Wells $2.25 Alafia Expansion $ $10.26 Aquifer Recharge $ $

33 Water conservation projects will be compared using the same criteria, including cost Project $/1000 gallons Water Conservation $ $3.25 Small Footprint Reverse Osmosis Pinellas County $ $8.20 Tampa Bay Seawater Desalination Expansion $ $6.99 Gulf Coast Desalination $7.61 Additional Potable Groundwater from Existing Wells $1.24 Thonotosassa Wells $2.25 Alafia Expansion $ $10.26 Aquifer Recharge $ $

34 Principal Assignments/Project Tasks Principal Assignments 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 Formulate and Assess Conservation Program Alternatives estimate cost-effectiveness develop implementation and water savings scenarios recommend strategies Program Recommendations develop regional goals implementation, monitoring and evaluation strategies prepare demand management document

35 Regional Baseline Water Demand Profile Objective: Evaluate demand dynamics How does water use vary currently and why? How has water use changed over time and why? What trends are operating to shape future demands? Objective: Support analysis of water end uses Estimate indoor and outdoor consumption Estimate presence and distribution of end use Merge with survey data Assess differences in consumption Evaluate current market saturation of efficient technology

36 Regional Single Family Annual Average Gallons/Unit/Day

37 Regional Single Family Average Gallons/Unit/Day by Month April May May May May May May Sept 2004

38 Regional Single Family Weather Sensitive vs. Non-Weather Sensitive

39 Regional Single Family Weather Sensitive vs. Non-Weather Sensitive

40 Regional Single Family Weather Sensitive vs. Non-Weather Sensitive

41 Regional Single Family Proportion of Weather Sensitive Demands

42 Regional Single Family Distribution of Water Use WY 2008

43 Regional Single Family Average Gallons/Unit/Day by Year Built

44 End Use and Market Saturation Analysis Water use and efficiency occurs at the end use level End use algorithm will be designed using water use and survey data supported by literature Distribute average use into specific indoor and outdoor end uses Define current and future technology-based efficiency levels Estimate the current degree of efficient technology (market saturation) Evaluate rates of passive efficiency improvements Examine impacts of active shifting of end uses toward higher efficiency

45 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Identify and Evaluate DSM Alternatives Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations

46 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Profile update Identify and Evaluate DSM Alternatives Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations

47 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Profile update Identify and Evaluate DSM Alternatives Regional Baseline Water Demand Profile results Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations

48 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Profile update Identify and Evaluate DSM Alternatives Regional Baseline Water Demand Profile results Avoided Supply Cost Analysis results Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations

49 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Profile update Identify and Evaluate DSM Alternatives Regional Baseline Water Demand Profile results Avoided Supply Cost Analysis results Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations Draft Implementation Water Savings Scenarios

50 Timeline Calendar Year TASK DESCRIPTION Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Project Management and Meetings Regional Baseline Water Demand Profile Profile update Adopt DMP Identify and Evaluate DSM Alternatives Regional Baseline Water Demand Profile results Avoided Supply Cost Analysis results Formulate/Assess Alternative DSM Strategies Formalize Program Recommendations Draft Implementation Water Savings Scenarios

51 Questions?