Presentation is loading. Please wait.

Presentation is loading. Please wait.

Water is the oil of the 21 st century Andrew Liveris CEO, Dow Aug 2008.

Similar presentations


Presentation on theme: "Water is the oil of the 21 st century Andrew Liveris CEO, Dow Aug 2008."— Presentation transcript:

1 Water is the oil of the 21 st century Andrew Liveris CEO, Dow Aug 2008

2 On-Demand Pumps (Residential hot water recirculation*) Do they make sense for Sierra Vista, AZ & consumers? * Based on Generalized Model for Hot Water Recirculation Analyses © * Based on Generalized Model for Hot Water Recirculation Analyses ©

3 Structured Plumbing (pump at water tank)

4

5 Structured Plumbing (O/D pump at faucet)

6

7 Since June 2000 (water)

8

9

10 Since June 2000 (power)

11

12

13 June 2000 Policy Consequences* (Policy: timer pumps) Wasted water reduction -43% Energy costs increase +99% Consumers not using ~ 40% * Derived from updated Generalized Model Analyses for on-demand recirculation pumps, Aug 2010 ©

14 2009 Predicted Community Outcome (Wasted power and water) Costs Power $2.2M Water 217K Treat (city) 210K Acre Feet 290* (95M gals) CO 2 emitted; MT 2,780 * 4.4% of annual water usage

15 SV Outcomes Analysis did not include: –Fort Huachuca –Mobile homes –Pre-June 2000 apartments –Commercial enterprises –Government buildings Understated

16 Consumers Perspective (Annual, per unit) N/R Timer O/D Power $149 $297* $57 Water, gals 8,767 4,982ª 1,198 cost $20 $11 $3 * Weighted power costs based on electric and gas hot water tank mix of 1:4 ª Weighted average for only timer pumps operating 4 or 16 hr/day = 2460 gal

17 Breakeven time (years) Gas Electric Timer pump replace defective.7.5 New construction*.6.4 * Breakeven years without recirculation return loop is zero; lower initial cost. (Comment: non-recirculated installation is done for convenience.)

18 Conclusions & Actions Pumps save energy and water Lack of awareness New construction smart decision City rebates; EOP cost avoidance Could be an early USPWD grant initiative IRS tax credit proposal SV updating plumbing code SSVEC rebate proposal

19 Presentation Ends

20 2009 Predicted Community Outcome (Wasted power and water; two scenarios) Costs Base Relaxed Power $2.2M $3.8M Water 217K 310K Treat (city) 210K 299K Acre Feet CO 2 metric tons 2,780 4,813

21 A Recent DIY Installation We installed an on-demand pump in our home about two months ago. In a day, Helen and I were used to it. I wish we had done this 20 years ago! Gene Manring Former Cochise County Supervisor Former Exec Dir, SV Chamber of Commerce Board member, SV Symphony Director, SSVEC June 20, 2010

22 SV Water Data (Source: Water Usage; SV Info, Apr 14, 2009) City* Analysis Bella Vista FHU PDS WC AZ Water PDS GC City of SV Cloud 9 Estates TOTAL 7,076 AF 6,533 AF Daily Usage (GPCD, g/pp/day*) * Population: 45,908

23 Decomposition of Plumbing Pumps themselves Plumbing design: structural waste Water/energy nexus: –Water: costs, gallons, and acre-feet plus invisible –Energy: costs, kWhr, and therms Recirculation expenses: –plumbing design –by life-style

24 Standard to OD Plumbing Comparison (DR Horton Study, 2005)

25 Standard to OD Plumbing Comparison (DR Horton study, 2005)


Download ppt "Water is the oil of the 21 st century Andrew Liveris CEO, Dow Aug 2008."

Similar presentations


Ads by Google