Sacramento Municipal Utility District: Transmission To Renewable Renewables

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Sacramento Municipal Utility District
Transmission To Renewable Renewables

• Elaine Sison-Lebrilla, P.E.
• Advanced, Renewable Distributed Generation
  Technologies
• Geothermal Resource Council Annual Meeting
• Reno, NV-October 6, 2008

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Overview

• Sacramento Municipal Utility District
• RPS Renewable Energy Supply
• 2007 Portfolio
• Wind, Water, Solar, and Biomass
• Transmission Activities

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SMUD

• Publicly Owned (Sixth Largest in U.S.)
• Serves 1.4 Million (Sacramento County and parts
  of Placer), 590,000 customers
• 12 Supply Goal in 2006 23 in 2011
• Surpassed 2006 Goal of 12 by 1 Challenged to
  Meet 2011 Goal
• 33 by 2020?

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Renewable Energy Supply

• Two Programs RPS Greenergy
• SMUD Owns Renewables Signs PPAs
• Released 4 Request for Offers
• Current solicitation, proposals due Oct 21st
• Accept unsolicited proposals, willing to consider
  innovative ownership options

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Renewable Energy Supply
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2007 Renewable Energy Mix
PV lt1
Small Hydro 6
Geothermal 21
Biomass 47
Wind 25
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SMUDS WIND

• Solano Wind Facility (Rio Vista)
• 102 MW today
• Land Purchase another 125-130 MW

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SMUDs PV Portfolio

• Consistent Leadership for 25 years
• Utility designed, owned operated to incentives
• Currently 1,100 installations 10 MW AC
• 1023 Residential
• 114 Commercial
• 18 Utility Scale
• 35 Misc. Others

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Biomass/Biogas
SRWTP COGENERATION PLANT
Multi-Fuel with 7.5 MW from Digester Gas
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Dairy Biogas to Energy
SMUD is working with two local dairies to capture
methane from cow manure to generate electricity
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Acquiring Renewable Energy

• Barriers
• Transmission Constraints
• Declining Availability of Renewable Projects
• Increasing prices for Renewable

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Elverta-OBanion Line

• Western Area Power Administration (WAPA)
• Sacramento Area Voltage Support (SAVS) Project
• Increases transmission reliability
• Increases import capacity
• Late 2010 or early 2011

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Elverta-OBanion Line
Distances are approximations
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TANC Transmission Program

• Transmission Agency of Northern California
  includes SMUD and other N. CA POUs
• Access to Renewables in Northeast CA, Nevada and
  Pacific Northwest through increased transmission
  capability

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Wind Opportunities
Fredonyer Peak Lassen County SMUD 150
MW, possibly more
Source CEC PIER
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Geothermal Potential
Greater Reno lt 650 MW Dixie Corridor lt 500
MW Medicine Lake lt 200 MW Surprise Valley lt 40 MW
Source GeothermEX Study Funded by CEC PIER
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Northern California Regional Integration of
Renewables

• Funded by CEC PIER
• Develops Multi-Utility transmission planning
  scenarios with portfolio of Renewables to supply
  demand to 2020
• CEC, CPUC, CAISO, PGE, WAPA, TANC, and SMUD
• Provides insight to transmission interactions and
  implications with more renewable generation

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Renewable Energy Transmission Initiative (RETI)

• Identify competitive renewable energy zones
  (CREZs)
• Identify transmission projects needed for CA RE
  Goals
• Facilitate transmission generation siting and
  permitting
• Result in transmission recommendations that
  supports future energy policy

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Renewable Energy Transmission Initiative

• Structure
• Steering Committee (CEC,CPUC, CAISO, SCPA,SMUD,
  and NCPA)
• Stakeholder Steering Committee
• Multi-phases
• Currently concluding 1st Phase
• http//www.energy.ca.gov/reti/index.html

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Western Renewable Energy Zones Project

• Develop framework for how best to develop and
  deliver energy from renewable resource areas to
  load centers among 11 western states, Mexico,and
  two Canadian provinces
• Identify renewable energy zones and conceptual
  transmission plans needed to deliver the
  renewable energy to load centers

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Western Renewable Energy Zones Project

• WGA with funding from DOE
• Structure
• Steering Committee
• Technical Committee
• Working Groups (ZITA, Environment and Lands,
  Generation and Transmission Modeling)
• http//www.westgov.org/wga/initiatives/wrez/index
  .htm

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Summary

• SMUD committed to meeting RE Goals
• SMUD is working collaboratively with others to
  overcome transmission barriers for the future

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Contact Information
Elaine Sison-Lebrilla esison_at_smud.org (916)
732-7017