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IRRIGATION
PARKS
HYDROELECTRIC
ELECTRIC
DRAINAGE
Prepared For:
CEC’s Joint Agency Workshop on California’s Drought Response
August 28, 2015
Merced River Watershed Area1,037 sq. miles
• Successor in Interest to Water Entities Serving Irrigation Water Since 1870s
• Serving Eastern Merced County for Almost 90 Years
• Holds Riparian, Pre-1914 And Post 1914 Appropriative Water Rights
NEW EXCHEQUER DAM & FACILITIES:
RESERVOIR – LAKE McCLURECapacity 1,024,600 AFSurface area 7,127 acresShoreline 82 milesElevation 867 feet
POWERHOUSECapacity 100,000 KWRated head on turbine 397 feetPenstock diameter 16 feet
RECREATIONCamping, boating, swimming, fishing, hiking.
4
Merced River Hydroelectric Project - Facilities
LAKE McSWAIN DAM & FACILITIES:
RESERVOIRCapacity (gross pool) 9,730 acre-feetSurface area (gross pool) 308 acresShoreline (gross pool) 12.5 milesElevation (gross pool) 400 feet
POWERHOUSECapacity 9,100 KilowattsRated head on turbine 54 feetPenstock diameter 15 feet
RECREATIONCamping, boating, swimming, fishing, hiking
5
Merced River Hydroelectric Project - Facilities
New Exchequer Dam Capable of Producing 100 Megawatts Of Emission-Free EnergyLarge Hydro Generation Critical Component of Balancing Energy Load Demands with Intermittent Distributed Solar and Wind Energy Coming Online Under Current RPS GoalsHydro Will Become More Important if SB 350 is Enacted, Increasing RPS Target to 50%
Introduction
CURRENT DROUGHT IMPACTS
In 4th Year of an Unprecedented DroughtFeb 5, 2009, Below Normal Year Jan 5, 2011, Wet Year
March 20, 2015
Hydro Generation
Year MWh
2011 480,450
2012 205,360
2013 139,840
2014 77,580
Through June 2015 3,560
MID In-District Surface Water Deliveries, Applied Acreage
2011 2012 2013 2014 2015
Acre-Feet Delivered 263,194 309,340 265,613 137,910 9,261
AF/Acre Delivered 2.7 3.0 2.6 1.6 NA**
** Represents less than 1/10 of 1 acre foot per acre, delivered
FUTURE CONCERNS
Drought Represents a Harbinger of Disaster for Clean Energy in California– Pending State Water Board Actions Will Result in Lake
McClure and Others Being Emptier More Frequently
According to Pacific Institute (March 2015) – Increase of 8% In CO2 Due to Loss of Hydroelectric Power Over Last 4 Years– Power Plants Combusted Fossil Fuels to Make Up for Deficit
In Hydroelectric Production
Future Concerns
SWRCB SED– Along with Several Other Irrigation Districts Along East Side
of San Joaquin Valley, Faced with Ongoing Future Loss of Stored Water
– 35% Unimpaired Flow Releases February – June– Significantly Impacts Operations– Reduces Generation During Summer Months– Will Have Host of Impacts to Groundwater and Our
Disadvantaged Community’s Economy – Will Have Significant Impact on Ability to Produce Emission-
Free Energy And Provide Load Balancing With Increased Introduction of Solar And Wind Energy
– Will Affect Merced ID’s Ability to Help State Meet Its Goals of RPS Implementation and Greenhouse Gas Reduction
Future Concerns
CURRENT PLANNING ACTIVITIES
Current Planning ActivitiesWorking with SWRCB on its SED– Flows SWRCB Implements Will Significantly Impact Generation
Replace Turbine Runner – Complete– Previous Generation Capacity = 94.5 MW– Generation Capacity After Runner Upgrade = 100 MW
Groundwater Sustainability Act Regional LeadershipIntegrated Regional Water Management Planning
Increase Existing StorageNew Exchequer Reservoir Spillway Modification
Increase Water Supply Upper Watershed Management
Increase Water Supply Upper Watershed Management
Ongoing study for impact of thinning with the University of California, Merced
Speckerman
Nelder
a
Atwater CanalRegulating ReservoirYear 1
McCoy Lateral LowerRegulating ReservoirYear 4
Arena CanalRegulating ReservoirYear 5
McCoy Lateral UpperRegulating ReservoirYear 12
Livingston Canal Water Conveyance System Modernization Components
Bear CreekRegulating ReservoirYear 7
Downstream Regulating Basins
Reduce Unnecessary River ReleasesImprove Tracking of Third Party Diversions
Reduce Unnecessary River Releases Support River Restorations
Optimization of Water Resources
Questions?