economic value of regional water supply planning · 2018. 6. 6. · economic analysis of regional...
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Economic Value of Economic Value of
Regional Water Supply Regional Water Supply
PlanningPlanning
Presented by Margaret SchneemannPresented by Margaret Schneemann
Water Resource EconomistWater Resource Economist
IllinoisIllinois--Indiana Sea GrantIndiana Sea Grant
University of Illinois ExtensionUniversity of Illinois Extension
Chicago Metropolitan Agency for PlanningChicago Metropolitan Agency for Planning
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Benefits of Regional Water Supply Benefits of Regional Water Supply
PlanningPlanning
Benefits to Utilities
� Deferral and/or downsizing of capital facilities
� Reduced operation & maintenance expenses
� Reduced water purchases
� Enhanced reputation and customer relations
� Avoided wastewater treatment costs
� Reduced energy costs
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Benefits of Regional Water Benefits of Regional Water
Supply PlanningSupply Planning
Benefits to Society
� Increased flow of environmental and ecosystem services
� Avoided shortages
� Avoided regional economic losses
� Avoided costs of short-term shortage/drought management programs
� Avoided water use restrictions
� More stable utility revenue and avoided lost profits
� Avoided reduced consumer consumption of water
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Costs of Regional Water Supply Costs of Regional Water Supply
PlanningPlanning
� Planning Costs �State level �Regional planning �Utility level
� Plan Implementation �Cost of recommended strategies
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Case StudiesCase Studies
� Metropolitan North Georgia Water Planning District (MNGWPD)
� Massachusetts Water Resources Authority (MWRA)
� Seattle Public Utilities (SPU)
� City of Phoenix Water Services Department
� Texas Region H Houston-Galveston Metropolitan Area
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Economic Analysis of Regional Economic Analysis of Regional
Water Supply PlanningWater Supply Planning
� Review water supply plans for each region.
� Contact regional planners to clarify and fill in data gaps.
� Monetary values reported in year 2005 dollars, water units in millions of gallons per day (mgd) for consistency.
� Benchmark range of values provided: � Total savings per mgd - incremental net benefits over the planning horizon.
� Benefit-cost ratio – present value of benefits divided by the present value of costs.
� Annual net benefit per household.
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Metropolitan North GeorgiaMetropolitan North Georgia
Regional DescriptionRegional Description
� 2000 � Population 4 million
� Water demand 650 mgd
� Water supply 933 mgd
� 2030 � Population 8 million
� Water demand 1,081-1,300 mgd
� Water supply 1,267 mgd
Source: http://www.northgeorgiawater.com/images/DistrictMap_Web.jpg
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Metropolitan North Georgia Metropolitan North Georgia
Water Planning DistrictWater Planning District
� Demand could exceed supply by 2030.
� Recommend:� Supply development � Water conservation � Water sharing � Water reclamation
Source: Metropolitan North Georgia Water Planning District WaterSupply and Water Conservation Management Plan 2003
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$3.83Annual net benefit per household
119 mgdWater savings
$1.48Total savings per mgd
$245 millionConservation program cost
2000 - 2030Planning period
2.0B/C Ratio
$531 millionAverted supply costs
$10.6 millionWater supply planning cost
Value of Regional Water Supply Planning ($2005)
Metropolitan North Georgia Metropolitan North Georgia
Water Planning DistrictWater Planning District
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Massachusetts Water Resources AuthorityMassachusetts Water Resources Authority
Regional DescriptionRegional Description� Water supply 300 mgd
� 1987 � Population 2.2 million� Water demand 336 mgd
� 2000� Population 2.5 million� Water demand 214 mgd
Source: http://www.mwra.state.ma.us/04water/html/watermapsimple903.jpg
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Massachusetts Water Resources AuthorityMassachusetts Water Resources Authority
Boston RegionBoston Region
� Conservation efforts and infrastructure improvements deferred river diversion plans.
� Projected 2020 water demand below 300 mgd.
� Decrease in demand to below system safe yield.
Source: Das, Joshua, MWRA “Supply and Demand Management of Greater Boston’s Water System (1600s –the present)” 2007
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Massachusetts Water Resources AuthorityMassachusetts Water Resources Authority
Value of Regional Water Supply PlanningValue of Regional Water Supply Planning
$28.92Annual net benefit per household
85 mgdWater Savings
$3.45Total savings per mgd
$443.4 millionRecommended program costs
1978 - 1990Planning period
1.8B/C Ratio
$800 millionAverted costs
$2.6 millionWater supply planning cost
Value of Regional Water Supply Planning ($2005)
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Seattle Public UtilitiesSeattle Public Utilities
Regional DescriptionRegional Description� Water supply 171 mgd
� 1990
� Population 1.1 million
� Water Demand 168 mgd
� 2000
� Population 1.2 million
� Water Demand 148 mgd
� 2010
� Population 1.3 million
� Water Demand 134 mgd
� 2030
� Population 1.6 million
� Water Demand 129 mgd
Source: Seattle Public Utilities Water System Plan Public Review Draft 2006
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Seattle Public UtilitiesSeattle Public Utilities
Water System PlanWater System Plan
Conservation efforts have extended the water supply for 50 years. No new supply sources needed until after 2060.
0
25
50
75
100
125
150
175
200
225
250
1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030
Annual MGD
Unattributed Savings
Transitory Savings
Conservation Programs
Plumbing Code
Rate Impacts
System Operation Improvements
1990 Forecast with No
Conservation
Actual
Demand
2007 Forecast with
Conservation
�1990s: water conservation programs decrease consumption 171 to 150 mgd.
�2007: conservation commitment for 2011-2030 with 15 mgd savings.
Source: Dietemann, Al. Seattle Public Utilities 2008.
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Seattle Public UtilitiesSeattle Public Utilities
Value of Regional Water Supply PlanningValue of Regional Water Supply Planning
$6.95Annual net benefit per household
61 mgdWater Savings
$1.06Total savings per mgd
$79 millionConservation program cost
1990 - 2012 Planning period
2.1B/C Ratio
$174 millionAverted supply costs
$4 millionWater supply planning cost
Value of Regional Water Supply Planning ($2005)
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Phoenix Water Services DepartmentPhoenix Water Services Department
Regional DescriptionRegional Description
� 2005� Population 1.4 million� Water Demand 314 mgd� Water Supply 368 - 381 mgd
� 2020� Population 2 million� Water Demand 419 - 467 mgd� Water supply 279 - 436 mgd
Source: City of Phoenix Water Resources Plan Update 2005
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Phoenix Water Services DepartmentPhoenix Water Services Department
Water Resources PlanWater Resources Plan
Phoenix has sufficient water supplies to meet expected demand in the majority of future scenarios.
� Stacking of supply options by cost-effectiveness
� Water conservation program� water pricing reform
� indoor residential water conservation
� industrial and commercial water conservation
� plant and turf irrigation efficiency
� water-efficient landscaping
Source: City of Phoenix Water Resources Plan Update 2005
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Phoenix Water Services DepartmentPhoenix Water Services Department
Value of Regional Water Supply PlanningValue of Regional Water Supply Planning
$10.32Annual net benefit per household
80 mgdWater Savings
$1.32Total savings per mgd
$41.5 millionConservation program cost
1986 – 2005Planning period
4.3B/C Ratio
$183 millionAverted supply costs
$1 millionWater supply planning cost
Value of Regional Water Supply Planning ($2005)
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Texas Region H Texas Region H -- Houston RegionHouston RegionRegional DescriptionRegional Description
2000� Population 4.8 million� Water Demand 1,864 mgd� Water Supply 2,365 mgd
2060� Population 10.9 million� Water Demand 3,046 mgd� Water Supply 2,288 mgd
Source: 2006 Texas Region H Water Plan
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Texas Region HTexas Region HHouston RegionHouston Region
Declines in groundwater supply will necessitate increased use of surface water.
Demand rising through 2060.
City of Houston conservation program cut demand 7.3% through 2006.
Source: 2006 Texas Region H Water Plan
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Texas Region H Texas Region H Houston RegionHouston RegionValue of Regional Water Supply PlanningValue of Regional Water Supply Planning
$14.44Annual net benefit per household
$10.33Total savings per mgd
160 mgdWater Savings
$5,329 millionProgram implementation cost
1998 – 2060Planning period
1.7B/C Ratio
$9,000 millionAverted costs of unmet water needs
$4.8 millionWater supply planning cost
Value of Regional Water Supply Planning ($2005)
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Value of Regional Water Supply Value of Regional Water Supply
PlanningPlanning
4.34.3$10.32$10.32$1.76$1.76PhoenixPhoenix
1.71.7$14.44$14.44$10.33$10.33HoustonHouston
2.12.1$6.95$6.95$1.06$1.06SeattleSeattle
1.81.8$28.92$28.92$3.45$3.45BostonBoston
2.02.0$10.32$10.32$1.76$1.76MedianMedian
2.02.0$3.83$3.83$1.48$1.48AtlantaAtlanta
B/C RatioB/C RatioAnnual Net Annual Net
benefit per benefit per
householdhousehold
Total Total
savings savings
per mgdper mgd