Status of Power Plants & Electricity Generation in SCAQMD

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1 Status of Power Plants & Electricity Generation in SCAQMD CAPCOA Engineering & Toxics Symposium Embassy Suite Napa Valley June 4-5, 2013 Mohsen Nazemi, P.E. Deputy Executive Officer South Coast Air Quality Management District 1

2 New Power Plants Permitted (since 2000) Facility Location MW Start-up Date Canyon Power Plant* Anaheim Riverside DWP* Riverside PurEnergy (2 Projects)** Colton SCEdison (4 Projects)** Miraloma, Ontario, Norwalk, Stanton CPV Sentinel + Desert Hot Springs EI Colton + Colton Inland Empire Energy Menifee Center + Magnolia Power + Burbank THUMS + Long Beach Walnut Creek Energy + City of Industry Wildflower Energy + North Palm Springs Total 3408 * ERCs ** Exempt < 4 TPY + District Internal Bank/ Other 2

3 Existing Repowers/ Addition (since 2000) Facility Location MW Added MW Removed AES Huntington Beach* Huntington Beach Edison MtView* San Bernardino NRG Long Beach* Long Beach Bicent Malburg + Vernon Burbank DWP + Burbank Glendale DWP + Glendale LADWP Haynes + Long Beach LADWP Harbor + Wilmington LADWP Valley + Sun Valley NRG El Segundo + El Segundo Pasadena DWP + Pasadena LADWP Scattergood + Los Angeles Total * ERCs + District Internal Bank/ Other 3

4 Power Plants Shutdowns (since 2000) Facility MW Shut down MW Replaced AES Alamitos* AES Huntington Beach* AES Huntington Beach AES Riverside Canal Edison MtView GenOn West Etiwanda* AES Redondo NRG El Segundo NRG Long Beach* EME Huntington Beach Pasadena DWP Burbank DWP* Glendale DWP* LADWP Valley LADWP Harbor* LADWP Haynes LADWP Scattergood Total * Peaking Turbines + Utility Boilers 4

5 Power Plant Applications Pending Facility Type MW Palen Solar 1 LLC Solar Thermal 500 LADWP Scattergood Repower Turbines 524 AES Huntington Beach Repower AES Redondo Beach Repower NRG El Segundo Repower Pasadena DWP Repower (2 options) Turbines 939 Turbines 530 Turbines 448 Turbines 71 5

NRG El Segundo Repower NRG El Segundo: 2 boilers, total of 670 MW. 2000 Proposal Repower of Boilers 1 and 2 (350 MWs) with 647 MW. Offsets: R-1304, ERCs, and R1309.1 Priority Reserve.

6 NRG El Segundo Repower NRG El Segundo: 2 boilers, total of 670 MW Proposal Repower of Boilers 1 and 2 (350 MWs) with 647 MW. Offsets: R-1304, ERCs, and R Priority Reserve. CEC approves AFC in Feb 2005, but lawsuits filed Proposal Modification: capacity reduced to 573 MW. OTC is removed and replaced with dry cooling. Offsets: R Total MW shutdown is 685 MW. AQMD Permits issued on July 16, Start of operation in June

PM10 and SOX from SCAQMD s internal offset bank ($53 Million for mitigations) CEC approves AFC in December

7 Competative Power Ventures (CPV) Sentinel CPV Sentinel: 8 turbines, total of 850 MW. CPV files applications with CEC/SCAQMD in 2007 January 2010: Pursuant to AB1318, CPV to obtain offsets for PM10 and SOX from SCAQMD s internal offset bank ($53 Million for mitigations) CEC approves AFC in December 2010 EPA Region 9 approves SIP Revisions in April SCAQMD Permits issued on April 15, 2011 Start of first fire in December

May 2011: EME purchased from AES Boilers 3 and 4 at Huntington Beach to retire as offsets SCAQMD

8 Edison Mission Energy (EME) Walnut Creek Energy EME Walnut Creek Energy: 5 turbines, total of 500 MW EME files applications with CEC/SCAQMD in 2005 CEC approves license in February May 2011: EME purchased from AES Boilers 3 and 4 at Huntington Beach to retire as offsets SCAQMD permit issued on May 2011 EME retired HB boilers 3 and 4 in November 2012 Start of first fire in December

9 Main Gas Supply Line to HB Units 3 & 4 Cut / Double Flanged 9

10 Cut a 3 X4 Section of Boiler Walls on Both Ends 10

11 San Onofre Nuclear Generating Station News 11

Orange County & San Diego CAISO asked HB Units 3 & 4 to restart in March 2012.

12 San Onofre Nuclear Generating Stations (SONGS) Shutdown Since Jan. 2012, SCE has shutdown both SONGS Units 2 & 3 Total of 2,200 MW lost Shortfalls in South Orange County & San Diego CAISO asked HB Units 3 & 4 to restart in March Units shutdown in Nov Plans to Convert HB Generators 3 & 4 to Synchronous Condensers approved by FERC in January

13 Current Offset Exemptions for Power Plants (Rule 1304) Utility Boiler Replacements Utility Boiler(s) Replaced with Gas Turbine(s) No Increase in Per-Utility Max. MW Rating No Limitation on Potential to Emit or Emission Increases from New Gas Turbine(s) Emission Increases Offset by using AQMD s Internal Offset Bank (without paying any fees) 13

14 Once-Through-Cooling Generating Units (7,646 MWs) Total OTC Replacement Operator Facility Units MW Date AES Alamitos Boilers AES Huntington Boilers Beach AES Redondo Beach Boilers NRG El Segundo Boilers LADWP Haynes Boilers 1,2,5,6 Turbines 9, LADWP Harbor Turbines 1, LADWP Scattergood Boilers Total

LA Basin At least 1,000 MW but no more than 1,200 MW must be procured from conventional gas-fired resources At least 50 MW must be procured from

15 CPUC 2012 Long-Term Procurement (Proceeding # R ) Local Capacity Decision issued on February 13, 2013 Authorizes SCE to procure 1,400 1,800 MW capacity Requires resources be located in the LA Basin At least 1,000 MW but no more than 1,200 MW must be procured from conventional gas-fired resources At least 50 MW must be procured from energy storage; at least 150 MW must be procured through preferred energy resources (energy efficiency, demand response, distributed generation) or storage CPUC did not consider absence of SONGS and considers this a measured first step in a longer process. 15

Mid-term (2018) mitigation alternatives for loss of SONGS* Continue use synchronous condensers Construct an 11-mile 230 kv line from Sycamore to Penasquitos 820 MW new or replaced + 300 MW new

16 Mid-term (2018) mitigation alternatives for loss of SONGS* Continue use synchronous condensers Construct an 11-mile 230 kv line from Sycamore to Penasquitos 820 MW new or replaced MW new generation MVAR SVC support SONGS and Talega OR 965 MW new or replaced in northwest San Diego, and 1460 MVAR SVC support SONGS, Talega, Penasquitos, San Luis Rey, Mission *Source: Cal ISO Draft Transmission Plan released Feb. 1,

17 Long-term (2022) generation mitigation alternatives no added transmission lines (in addition to mid term plan)* Replace & add new generation totaling ~4,300-4,600* MW *May be reduced by adding another MVAR SVC at San Onofre and shifting the locations of the new generation. OR Replace & add new generation totaling ~3,800 MW + Continue to rely on synchronous condensers. + Add between MW of new or replaced generation *Source: Cal ISO Draft Transmission Plan released Feb. 1,

18 Proposed Rule Offset Fees Power plants which use Rule 1304 offset exemption (Replacing Utility Boilers) pay an Offset Fee to SCAQMD SCAQMD uses the offset fee for emission reduction project to Mitigate impacts of Power plant emissions Achieve emission reductions for AQMP Fees can be upfront or annual First 100 MWs pays 50% less Fee 18

19 Revised Annual Offset Fee Formula Annual Offset Fee (Fi) = Ri x PTErep x OFi x (Crep-C2YRAvg Exist./Crep) F i = Annual Offset Fee for pollutant (i). R i = Annual Fee Rate for pollutant (i), in terms of dollars per pound per day, (see Table A for applicable rates). PTErep i = permitted potential to emit of new replacement unit(s) for pollutant i, in lbs per day. (Maximum Permitted Monthly Emissions 30 Days) OF i = offset factor pursuant to Rule 1315(c)(2) for extreme non-attainment pollutants and their precursors, (see Table A for applicable rates). C rep = maximum permitted annual megawatt-hour (MWh) electricity generation of the new replacement unit(s) C 2YRAvgExisting (Maximum rated capacity (MW) x Maximum Permitted Annual Operating Hours (h)) = the average annual megawatt-hour (MWh) generation of the existing unit(s) to be replaced, averaged over using the last twenty-four (24) month period immediately prior to submittal of the permit to construct. 19

20 First 100MW of Repowering ((c)(2) Table A1) Single Payment Option ($ per lb/day) Pollutant Original Proposal Revised Proposal PM 181,129 49,822 NOx** 66,322 33,286 SOx 60,856 39,631 VOC 10,904 2,318 Annual Payment Option ($ per lb/day ANNUALLY)* Pollutant Original Proposal Revised Proposal PM 7,245 1,993 NOx** 2,653 1,332 SOx 2,434 1,585 VOC * Offset Fees paid annually and adjusted annually by the CPI, consistent with the provisions of Rule 320 ** For non-reclaim sources only 20

21 Balance of Repowering Greater than 100MW ((c)(2) Table A2) Single Payment Option ($ per lb/day) Pollutant Original Proposal Revised Proposal PM 181,129 99,643 NOx** 66,322 66,571 SOx 60,856 79,262 VOC 10,904 4,635 Annual Payment Option ($ per lb/day ANNUALLY)* Pollutant Original Proposal Revised Proposal PM 7,245 3,986 NOx** 2,653 2,663 SOx 2,434 3,170 VOC * Offset Fees paid annually and adjusted annually by the CPI, consistent with the provisions of Rule 320 ** For non-reclaim sources only 21

2020 & 2024 Draft LCR Study Results for LA Basin and San Diego-Imperial Valley Areas

2020 & 2024 Draft LCR Study Results for LA Basin and San Diego-Imperial Valley Areas David Le Senior Advisor, Regional Transmission Engineer Draft LCR Study Results Meeting March 14, 2019 LA Basin and