20240823PAC to Bayer 55 Attachment - A3.LittleSnake.Initial.Baseline.pdf

A3 - Little Snake Full Detail schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May I Jun I Jul I Aug I Sep I Oct I Nov I Dec I Jan Feb Mar Apr May Jun I Jul Aug Sep Oct Nov Dec Jan Feb Mar p
Project Major Milestones 730 0 09/22/22A 09/20/24
Project Major Milestones(Construction) Ex G.1.1,IM& 730 _1111— 0 09/22/22A 09/20/24
MS.SI.CON- Contract Effective Start Date 0 09/22/22A MS.SI.CN;
MS.SI.CNSI Site Milestone-[1]Construction Start 0 0 05/03/23 MS.SI.C1 CNST.TRA a Site Milestone-[1]Construction Start
MS.SLFND.: Site Milestone-[6]Foundation Start 0 6 06/13/23 MS.SI.C1 MS.SI.FNE a Site Milestone-[6]Foundation Start
MS.SI.DE.S' Site Milestone-[8]Dead End Steel Start 0 6 07/05/23 MS.SI.0 MS.SI.DE.: a Site Milestone [8]Dead End Steel Start
MS.SI.TLIN.2 Little Snake Aeolus 500kV Transmission Line Dead End C 0 6 07/25/23* CNST.SI MS.SI.ME( Little Snake-Aeolus 500kV Transmission Line Dead End Complete
MS.SI.FND.1 Little Snake Control House Foundation Complete 0 6 07/25/23* CNST.FF MS.SI.ME( Little Snake Control House Foundation Complete
MS.SI.TLIN.1 Coyote-Little Snake 500kV Transmission Line Dead End( 0 6 07/25/23* CNST.SI MS.SI.ME( Coyote-Little Snake 500kV Transmission Line Dead End Complete
MS.SI.SUB.: Site Milestone-[10]Substation Steel Start 0 14 07/26/23 MS.SI.0 MS.SI.SUE a Site Milestone-[10]Substation Steel Start
MS.SI.FND.I Little Snake Reactor Foundations Complete 0 13 08/01/23* CNST.FF CNST.RC1 Little Snake Reactor Foundations Complete
MS.SI.EQP1 Site Milestone-[12]Equipment Install Start 0 14 08/16/23 MS.SI.C1 MS.SI.EQF a Site Milestone-[12]Equipment Install Start
MS.SI.FND.1 Site Milestone-[7]Foundations Complete 0 14 09/22/23 MS.SI.FP CNST.URE a Site Milestone-[7]Foundations Complete
MS.SI.DE.S' Site Milestone-[9]Dead End Steel Complete 0 63 09/27/23 CNST.SI CNST.BUS a Site Milestone-[9]Dead End Steel Complete
MS.SLBUS.: Site Milestone-[14]Bus Installation Start 0 0 09/28/23 MS.SI.C1 MS.SI.BUE a Site Milestone-[14]Bus Installation Start
MS.SI.SUB.: Site Milestone-[11]Substation Steel Complete 0 10 10/13/23 CNST.SI CNST.INSI a Site Milestone-[11]Substation Steel Complete
MS.SI.CH.0 Site Milestone-[17]Control House Complete 0 39 10/20/23 CNST.CH CNST.CN1 a Site Milestone-[17]Control House Complete
MS.SLURD. Site Milestone-[4]Underground Conduits Complete 0 34 10/25/23 CNST.UF CNST.CNT a Site Milestone-[4]Underground Conduits Complete
MS.SLURD. Site Milestone-[5]Underground Grounding Complete 0 12 10/25/23 CNST.GP CNST.BUS a Site Milestone-[5]Underground Grounding Complete
MS.SI.CH.S' Site Milestone-[16]Control House Panel&Wiring install 0 2 11/27/23 MS.SI.0 CNST.TRN a Site Milestone-[16]Control House Panel&Wiring install start
MS.SI.CBL.: Site Milestone-[18]Feld Cable Install Start 0 49 03/21/24 CNST.CP CNST.TRN a Site Milestone-[18]Field Cable Install Start
MS.SI.BUS.i Site Milestone-[15]Bus Installation Complete 0 60 04/04/24 MS.SI.BI MS.SI.ME( a Site Milestone-[15]Bus Installation Complete
MS.SI.PIPE. Site Milestone-[3]Underground piping Complete 0 59 04/05/24 CNST.PII COMMIS.1 a Site Milestone-[3]Underground piping Complete
MS.SI.CBL.( Site Milestone-[19]Feld Cable Install Complete 0 23 04/15/24 CNST.CP CNST.TRN a Site Milestone-[19]Field Cable Install Complete
MS.SI.CIV.0 Site Milestone-[2]Civil Earthworks Complete 0 83 05/01/24 CNST.CI MS.SI.ME( a Site Milestone-[2]Civil Earthworks Complete
MS.SI.EQP1 Site Milestone-[13]Equipment Install Complete 0 75 05/09/24 MS.SI.E( MS.SI.ME( Site Milestone-[13]Equipment Install Complete
MS.SI.TERN Site Milestone-[20]Feld Cable Termination Start 0 50 06/04/24 CNST.TF MS.SI.TER a Site Milestone-[20]Field Cable Termination Start
MS.SI.TERN Site Milestone-[21]Feld Cable Termination Complete 0 50 06/04/24 CNST.CP MS.SI.ME( a Site Milestone-[21]Field Cable Termination Complete
MS.SI.TEST. Site Milestone-[22]Contractor Testing Start 0 50 06/04/24 COMMIE MS.SI.TES a Site Milestone-[22]Contractor Testing Start
MS.SI.MECI Little Snake Substation Mechanical Completion 0 0 07/23/24* PM.PLAI MS.SI.SUE >� Little Snake Substation Mechanical Completion
MS.SI.TEST. Site Milestone-[23]Contractor Testing Complete 0 59 07/23/24 MS.SI.TE MS.SI.SUE a Site Milestone-[23]Contractor Test ng Complete
MS.SI.FRM: Site Milestone-[24]Contractor Testing and Commissionir 0 59 07/23/24 COMMIE MS.SI.SUE a Site Milestone-[24]Contractor Test ngand Com
MS.SI.SUBE Little Snake Substation Substantial Completion 0 0 09/20/24* COMMIE aA Little Snake Substation Substantial
Owner Milestones A 06/01/23 11/15/23
MS.OWN.C( Owner Supplied Material-CCVTs 0 0 06/01/23* PROC.O CNST.CC� a Owner Supplied Material-CCVTs
MS.OWN.SI Owner Supplied Material-Substation Steel 0 0 06/01/23* PROC.O CNST.STEI a Owner Supplied Material-Substation Steel
MS.OWN.DE Owner Supplied Material-Dead End Steel 0 0 06/30/23* PROC.O CNST.STEI a Owner Supplied Material-Dead End Steel
MS.OWN.52 Owner Supplied Material-Fixed Series Capacitors 525 kV 0 0 08/10/23* PROC.O CNST.CAP a Owner Supplied Material-Fixed Series Capacitors 525 kV
MS.OWN.Sb Owner Supplied Material-Disconnect Switches 0 0 08/15/23* PROC.O CNST.SW.' a Owner Supplied Material-Disconnect Switches
M � �
S.OWN.52 Owner Supplied Material-Series Reactors 525 kV 0 92 08/15/23* PROC.O CNST.TRA a Owner Supplied Material-Series Reactors 525 kV
milestones Primary Baseline � Actual Work Current � Fabricators Civil Neg Float Bar LD Float Date Date: 04/21/23
Actual Level of Effort 0 O Milestone Baseline G= Remaining Work ♦ ♦ Milestone � Electricians C=4D Line � LD Date Critical Remaining Work

A3 - Little Snake Full Detail schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May Jun Jul Aug Sep Oct I Nov I Dec I Jan I Feb I Mar I Apr I May I Jun I Jul I Aug Sep Oct Nov Dec Jan Feb Mar P
MS.OWN.13 Owner Supplied Material-138kV Neutral Reactor 0 0 10/01/23* PROC.O CNSTRC7 Owner Supplied Material-138kV Neutral Reactor
MS.OWN.SS Owner Supplied Material-Station Service VT 0 0 10/02/23* PROC.O CNST.SS O Owner Supplied Material-Station Service VT
MS.OWN.C- Owner Supplied Material-CT/VT Meter Units 0 0 10/02/23* PROC.O CNST.CTV a Owner Supplied Material-CT/VT Meter Units
MS.OWN.CH Owner Supplied Material-Control House 0 0 10/15/23* PROC.O CNST.CH a Owner Supplied Material-Control House
MS.OWN.PP Owner Supplied Material-P&C Panels,Annunciators 0 0 11/15/23* PROC.O CNST.PNL a Owner Supplied Material-P&C Panels,Annunciators
Ow Management 348 10/01/22A 05/23/23
Project Management 0 10/01/22A 04/21/23
• - 1 1 1 04/21/23
PM.PLAN Develop QAProgram Plan 15 10/01/22A 10/17/22A MS.SI.CI PM.PLAN.j
PM.PLAN Develop EAP 15 10/01/22A 12/09/22A MS.SI.Ci PM.PLAN.j
PM.PLAN Develop Safety Plan 15 10/01/22A 12/16/22A MS.SI.Ci PM.PLAN.j Plan
PM.PLAN Develop Emergency Response Plan 15 10/01/22A 02/06/23A MS.SI.CI PM.PLAN.j lop Emergency Response Plan
PM.PLAN Develop Environmental Training plan 15 0 10/01/22A 04/21/23 MS.SI.CI PM.PLAN.j Develop Environmental Training plan
PM.PLAN Develop SSEP 15 0 10/01/22A 04/21/23 MS.SI.0 PM.PLAN.j Develop SSEP
PM.PLAN Develop Biological Plant and Wildlife Plan 15 0 10/01/22A 04/21/23 MS.SI.CI PM.PLAN.j Develop Biological Plant and Wildlife Plan
PM.PLAN All Required Plans Submitted and Approved 0 0 04/21/23 PM.PLAI MS.SI.ME( All Required Plans Submitted and Approved
Engineering Deliverables(by others) 348 10/01/22A 05/23/23
ENG.IFC.CI` Design-CivilIFC 94 10/01/22A 12/21/22A MS.SI.Ci CNST.CIV. C
ENG.PEMB. PEMB-Anchor bolt and reaction drawings 4 12/16/22A 03/10/23A PEM -Anchor bolt and reaction drawings
ENG.IFC.FN Design IFC-Foundations 4 40 10/01/22A 04/21/23 MS.SI.CI CNST.FND Design IFC-Foundations
ENG.IFC.PC Design IFC-P&C 4 26 10/01/22A 04/21/23 MS.SI.0 CNST.PNL Design IFC-P&C
ENG.IFC.ST Design IFC-Structural 37 76 10/01/22A 04/21/23 MS.Sl.0 CNST.STEI Design IFC-Structural
ENG.IFC.PE PEMB-Full set of drawings 4 99 12/16/22A 05/10/23 MS.SI.CI CNST.PEW PEMB-Full set of drawings
ENG.IFC.EL DesignlFC-Electrical 4 0 10/01/22A 05/23/23 MS.SI.CI PROC.ORI DesignlFC-Electrical
Permitting 0 10/01/22A 9r 04/26/23
State/Local 0 10/01/22A 04/26/23
PERM.S� Obtain Water Oualty(SWPPP) Permit 4 4 10/01/22A 04/21/23 MS.SI.Cr PERM.ALL Obtain Water Quality(SWPPP) Permit
PERM.BI Bio Clearance 4 0 04/21/23 04/26/23 MS.SI.CI PERM.ALL ® Bio Clearance
PERM.AL All permits obtained to allow civil work to proceed 0 0 04/26/23 PERMS CNST.CIV., a All permits obtained to allow civil work to proceed
38 09/22/22 A IF 02/02/24
Contractor Furnished Materials 38 10/15/22A 02/02/24
PROC.Of Order Placed-Aluminum Strain Bus 1 10/15/22A 10/15/22A MS.SI.CI PROC.MAI rain Bu
PROC.OI Order Placed-Bare Copper 1 10/15/22A 10/15/22A MS.SI.0 PROC.MAI
PROC.Mj Manufacture-Bare Copper 45 38 10/15/22A 07/18/23 PROC.O PROC.DEI Manufacture-Bare Copper
PROC.DI Delivery-Bare Copper 4 38 07/19/23 07/22/23 PROC.M CNST.GNC 8 Delivery-Bare Copper
PROC.Mj Manufacture-Aluminum Strain Bus 67 71 10/15/22A 09/15/23 PROC.O PROC.DEI Manufacture-Aluminum Strain Bus
PROC.DI Delivery-Aluminum Strain Bus 4 71 09/16/23 09/19/23 PROC.M CNST.BUS Delivery-Aluminum Strain Bus
. - 1 1 1
PROC.OI Order Placed-Control Cable 1 47 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-Control Cable
6-1 PROC.OI Order Placed-Power Cable 1 47 05/24/23 05/24/23 ENG.IFC PROC.MAI Order Placed-Power Cable
milestones - Primary Baseline Actual Work Current 1�3 � Fabricators ED=-K] Civil Neg Float Bar LID Float Date Date: 04/21/23
Actual Level of Effort 0 O Milestone Baseline Remaining Work ♦ ♦ Milestone � Electricians E =-ME] Line � LID Date Critical Remaining Work

A3 - Little Snake Full Detail Schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec an Feb Mar IP
PROC.K Manufacture-Control Cable 250 47 05/25/23 01/29/24 PROC.O PROC.DEL Manufacture-Control Cable
PROC.Mj Manufacture-Power Cable 250 47 05/25/23 01/29/24 PROC.O PROC.DEL Manufacture-Power Cable
PROC.DL Delivery-Control Cable 4 47 01/30/24 02/02/24 PROC.M ICNSTCNI 9 Delivery-Control Cable
PROC.DL Delivery-Power Cable 4 47 01/30/24 02/02/24 PROC.M CNST.CNT 9 Delivery-Power Cable
. .ITI 1 09/25/23
PROC.OI Order Placed-GRC Conduit 1 41 05/24/23 05/24/23 ENG.IFC PROC.MAI Order Placed-GRC Conduit
PROC.OL Order Placed-PVC Conduit 1 11 05/24/23 05/24/23 ENG.IFC PROC.MAI Order Placed-PVC Conduit
PROC.Mj Manufacture-PVC Conduit 120 11 05/25/23 09/21/23 PROC.O PROC.DEL Manufacture-PVC Conduit
PROC.Mj Manufacture-GRC Conduit 120 41 05/25/23 09/21/23 PROC.O PROC.DEL Manufacture-GRC Conduit
PROC.DL Delivery-GRC Conduit 4 41 09/22/23 09/25/23 PROC.M CNST.ABC 8 Delivery-GRC Conduit
PROC.DL Delivery-PVC Conduit 4 11 09/22/23 09/25/23 PROC.M CNST.URE Delivery-PVC Conduit
PROC.OI Order Placed-Ground Grid System Material 1 10/15/22A 10/15/22A MS.SI.C1 PROC.MAI Syste Material
PROC.Mj Manufacture-Ground Grid System Material 75 38 10/15/22A 07/18/23 PROC.O PROC.DEL Manufacture-Ground Grid System Material
PROC.DL Delivery-Ground Grid System Material 41 38 07/19/23 07/22/23 PROC.M CNST.GNE 8 Delivery-Ground Grid System Material
W 1 07/05/23
PROC.OI Order Placed-Rigid Aluminum Bus 1 10/15/22A 10/15/22A MS.SI.C1 PROC.MAI im Bus
PROC.Mj Manufacture-Rigid Aluminum Bus 168 84 10/15/22A 07/01/23 PROC.O PROC.DEL Manufacture-Rigid Aluminum Bus
PROC.DL Delivery-Rigid Aluminum Bus 4 84 07/02/23 07/05/23 PROC.M CNST.BUS 8 Delivery-Rigid Aluminum Bus
PROC.OI Order Placed-525 kV Surge Arrestors 4 10/15/22 A 10/15/22 A MS.SI.C1 PROC.MAI Arres ors
PROC.OL Order Placed-Station post Insulators 4 10/15/22A 10/15/22A MS.SI.C1 PROC.MAI nsulat rs
PROC.OL Order Placed-Suspension Insulators 4 10/15/22A 10/15/22A MS.SI.C1 PROC.MAI nsulat rs
PROC.OL Order Placed-Station Service Generator 4 11/29/22 A 11/29/22 A MS.SI.C1 PROC.MAI ion Se ice Generator
PROC.OL Order Placed-storage building steel 4 12/16/22A 12/16/22A PROC.MAI torage building steel
PROC.OL Order Placed-Station Service Xfiners 1 8 04/21/23 04/21/23 ENG.IFC PROC.MAI Order Placed-Station Service Xfiners
PROC.OL Order Placed-34.5 kV Switches 1 12 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-34.5 kV Switches
PROC.OL Order Placed-AC Panel Boards 1 4 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-AC Panel Boards
PROC.OL Order Placed-Battery Bank/Rack/Charger 1 95 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-Battery Bank/Rack/Charger
PROC.OL Order Placed-Cable Trench 1 28 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-Cable Trench
PROC.OL Order Placed-Junction Boxes 1 11 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-Junction Boxes
PROC.OL Order Placed-Yard Lights 1 0 05/24/23 05/24/23 ENG.IFC PROC.MAI I Order Placed-Yard Lights
PROC.Mj Manufacture-Station post Insulators 156 74 10/15/22A 06/12/23 PROC.O PROC.DEL Manufacture-Station post Insulators
PROC.DL Delivery-Station post Insulators 4 74 06/13/23 06/16/23 PROC.M CNST.INSL 8 Delivery-Station post Insulators
PROC.Mj Manufacture-Suspension Insulators 156 60 10/15/22A 06/26/23 PROC.O PROC.DEL Manufacture-Suspension Insulators
PROC.DL Delivery-Suspension Insulators 4 60 06/27/23 06/30/23 PROC.M CNST.INSL 8 Delivery-Suspension Insulators
PROC.Mj Manufacture-525 kV Surge Arrestors 67 87 10/15/22A 07/13/23 PROC.O PROC.DEL Manufacture-525 kV Surge Arrestors
PROC.DL Delivery-525 kV Surge Arrestors 4 87 07/14/23 07/17/23 PROC.M CNST.SAR 8 Delivery-525 kV Surge Arrestors
PROC.Mj Manufacture-Cable Trench 60 28 05/25/23 07/23/23 PROC.O PROC.DEL Manufacture-Cable Trench
PROC.DL Delivery-Cable Trench 4 28 07/24/23 07/27/23 PROC.M CNST.CBL 8 Delivery-Cable Trench
PROC.Mj Manufacture-storage building steel 1 2 3 12/16/22 A 09/29/23 PROC.O PROC.DEL Manufacture-storage building steel
PROC.DL Delivery-storage building steel 4 5 09/30/23 10/03/23 PROC.M CNST.PEIV 8 Delivery-storage building steel
milestones - Primary Baseline 1*--M Actual Work Current W= � Fabricators ED=-IEI Civil � Neg Float Bar LD Float Date Date: 04/21/23
Actual Level of Effort 0 0 Milestone Baseline G= Remaining Work ♦ ♦ Milestone [__� Electricians C=40 Line � LD Date Critical Remaining Work

A3 - Little Snake Full Detail Schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May Jun Jul Aug Sep Oct I Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan [Feb[Mar
PROC.K Manufacture-Yard Lights 140 0 05/25/23 10/11/23 PROC.O PROC.DEL Man,fact, Lights
PROC.DI Delivery-Yard Lights 4 0 10/12/23 10/15/23 PROC.M CNST.LIGF 8 Delivery-Yard Lights
PROC.Mj Manufacture-34.5 kV Switches 150 12 05/25/23 10/21/23 PROC.O PROC.DEL Manufacture-34.5 kV Switches
PROC.Mj Manufacture-Junction Boxes 150 11 05/25/23 10/21/23 PROC.O PROC.DEL Manufacture-Junction Boxes
PROC.DI Delivery-34.5 kV Switches 4 12 10/22/23 10/25/23 PROC.M CNST.SW.' Delivery-34.5 kV Switches
PROC.DI Delivery-Junction Boxes 4 11 10/22/23 10/25/23 PROC.M CNST.ABC 8 Delivery-Junction Boxes
PROC.Mj Manufacture-Station Service Xfiners 200 8 04/22/23 11/07/23 PROC.O PROC.DEL Manufacture-Station Service Xfiners
PROC.DI Delivery-Station ServiceXfiners 4 8 11/08/23 11/11/23 PROC.M CNST.SS 8 Delivery-Station ServiceXfiners
PROC.Mj Manufacture-AC Panel Boards 180 4 05/25/23 11/20/23 PROC.O PROC.DEL Manufacture-AC Panel Boards
PROC.DI Delivery-AC Panel Boards 4 4 11/21/23 11/24/23 PROC.M CNST.PNL 0 Delivery-AC Panel Boards
PROC.Mj Manufacture-Battery Bank/Rack/Charger 200 95 05/25/23 12/10/23 PROC.O PROC.DEL Manufacture-Battery Bank/Rack/Charger
PROC.DI Delivery-Battery Bank/Rack/Charger 4 95 12/11/23 12/14/23 PROC.M CNST.BAT Delivery-Battery Bank/Rack/Charger
PROC.Mj Manufacture-Station Service Generator 291 94 11/29/22 A 12/20/23 PROC.O PROC.DEL Manufacture-Station Service Generator
PROC.DI Delivery-Station Service Generator 4 94 12/21/23 12/24/23 PROC.M CNST.GEN Delivery-Station Service Generator
Owner Supplied Material 0 09/22/22 A 11/15/23
PROC.OWN Owner Supplied Material-CCVTs 45 0 09/22/22 A 06/01/23 MS.OWN.( Owner Supplied Material-CCVTs
PROC.OWN Owner Supplied Material-Substation Steel 45 0 09/22/22 A 06/01/23 MS.OWN.; Owner Supplied Material-Substation Steel
PROC.OWN Owner Supplied Material-Dead End Steel 45 0 09/22/22 A 06/30/23 MS.OWN.1 Owner Supplied Material-Dead End Steel
PROC.OWN Owner Supplied Material-Fixed Series Capacitors 525 kv 45 0 09/22/22 A 08/10/23 MS.OWN.f Owner Supplied Material-Fixed Series Capacitors 525 kV
PROC.OWN Owner Supplied Material-Disconnect Switches 45 0 09/22/22 A 08/15/23 MS.OWN.; Owner Supplied Material-Disconnect Switches
PROC.OWN Owner Supplied Material-Series Reactors 525 kV 45 92 09/22/22 A 08/15/23 MS.OWN.f Owner Supplied Material-Series Reactors 525 kV
PROC.OWN Owner Supplied Material-138kV Neutral Reactor 45 0 09/22/22 A 10/01/23 MS.OWN.1 Owner Supplied Material-138kV Neutral Reactor
PROC.OWN Owner Supplied Material-Station Service VT 45 0 09/22/22 A 10/02/23 MS.OWN.; Owner Supplied Material-Station Service VT
PROC.OWN Owner Supplied Material-CT/VT Meter Units 45 0 09/22/22 A 10/02/23 MS.OWN.( Owner Supplied Material-CT/VT Meter Units
PROC.OWN Owner Supplied Material-Control House 45 0 09/22/22 A 10/15/23 MS.OWN.( Owner Supplied Material-Control House
PROC.OWN Owner Supplied Material-P&C Panels,Annunciators 45 0 09/22/22 A 11/15/23 MS.OWN.F Owner Supplied Material-P&C Panels,Annunciators
Construction tso 36 04/27/23 06/03/24
Substation 288 36 04/27/23 06/03/24
CNST Setup job trailers 4 0 05/03/23 05/08/23 PERM.AI CNSTCIV' 8 Setup job trailers
CNST. setup concrete batch plant 4 0 04/27/23 05/02/23 MS.SI.Ci CNST.FND 8 setup concrete batch plant
1 1• 1 1
CNST.CI� Clear and Grub-Phase 1 10 0 05/09/23 05/22/23 PERM.Ai CNST.CIV., 8 Clear and Grub-Phase 1
CNST.CI) Mass Excavation-Phase 1 15 0 05/23/23 06/13/23 CNST.CI CNST.CIV.I 6;;;J Mass Excavation-Phase 1
CNST.CI) Import Road Base-Phase 1 14 0 06/14/23 07/03/23 CNST.CI CNST.CIV., Import Road Base-Phase 1
CNST.CI\ Clear and Grub-Phase 2 15 0 07/05/23 07/25/23 CNST.CI CNST.CIV.I ® Clear and Grub-Phase 2
CNST.CI\ Mass Excavation-Phase 2 15 0 07/26/23 08/15/23 CNST.CI CNST.CIV.I Mass Excavation-Phase 2
CNST.CI\ Import Road Base-Phase 2 10 0 08/16/23 08/29/23 CNST.CI CNST.FND 8 Import Road Base-Phase 2
CNST.CI\ Install finish rock(1 of 2) 15 57 03/21/24 04/10/24 CNST.UF MS.SI.CIV. Install finish rock(1 of 2)
CNST.CI\ Install finish rock(2 of 2) 15 57 04/11/24 05/01/24 CNST.UF MS.SI.CIV. Install finish rock(2 of 2)
milestones Primary Baseline Actual Work Current 1�3 � Fabricators ED=-K] Civil Neg Float Bar LD Float Date Date: 04/21/23
Actual Level of Effort 0 O Milestone Baseline G= Remaining Work ♦ ♦ Milestone � Electricians C—K] Line LD Date Critical Remaining Work

A3 - Little Snake Full Detail schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May Jun Jul Aug Sep Oct I Nov I Dec I Jan jFebj Mar Apr May Jun I Jul Aug Sep Oct Nov Decl Jan IFeblMar p
CNST.FE Install fencing&signage 20 0 08/30/23 09/27/23 CNSTCI CNSTGAT ® Install fencing&signage
CNST.GA Gate Aprons&Bollards 20 79 09/28/23 10/25/23 CNST.FE COMMIS.1 Gate Aprons&Bollards
I. 10/25/23
• .- . 1. 1
CNST. Ground Grid-Open Areas 20 25 06/27/23 07/25/23 CNST.F< CNST.GNE Ground Grid-Open Areas
CNST. Ground Grid Phase 1 20 0 08/30/23 09/27/23 1 CNST.F� CNST.GNE Ground Grid Phase 1
CNST. Ground Grid Phase 2 20 8 09/28/23 10/25/23 CNST.CI CNST.BUS Ground Grid Phase 2
09/13/23
Reactor Foundation 30 9 06/20/23 08/01/23 1p
CU Reactor#1 FoundationA 10 9 06/20/23 07/03/23 ENG.IFC MS.SI.FNC Reactor#1 FoundationA
CU Reactor#2 Foundation B 10 9 07/05/23 07/18/23 ENG.IFC MS.SI.FNC Reactor#2 Foundation B
CU Reactor#1 Foundation B 10 9 07/05/23 07/18/23 CNST.CI CNST.RC1 Reactor#1 Foundation B
CU Reactor#1 Foundation C 10 19 07/05/23 07/18/23 CNST.CI CNST.RC1 Reactor#1 Foundation C
CU Reactor#2 Foundation C 10 9 07/19/23 08/01/23 ENG.IFC MS.SI.FNC Reactor#2 Foundation C
CU Reactor#2 FoundationA 10 9 07/19/23 08/01/23 CNST.CI CNST.RC1 Reactor#2 FoundationA
Cap Bank Foundation'{ 7 07/05/23 08/15/23
CN Cap Bank Foundations(1 of 2) 15 7 07/05/23 07/25/23 CMn�IV. Cap Bank Foundations(1 of 2)
CN; Cap Bank Foundations(2 of 2) 15 7 07/26/23 08/15/23 CNST.CI CNST.CIV. Cap Bank Foundations(2 of 2)
17 07/0 09/13/23
CU Storage Building Foundation 5 64 07/04/23 07/10/23 CNST.CI CNST.PEN Storage Building Foundation
CU Control House Foundation 15 4 07/05/23 07/25/23 CNST.CI MS.SI.FNC Control House Foundation
CU Generator Foundation 10 10 08/30/23 09/13/23 ENG.IFC CNST.CIV. Generator Foundation
CNST. Substation Piers Deadend Steel-Phase 1 15 4 06/13/23 07/03/23 CNST.CI CNST.URE Substation Piers Deadend Steel-Phase 1
CNST. Substation Piers structural Steel-Phase 1 15 10 07/05/23 07/25/23 CNST.F� CNST.STEI Substation Piers structural Steel-Phase 1
CNST. Substation Piers Deadend Steel-Phase 2 1171 6 08/07/23 08/29/23 CNST.CI CNST.FND ® Substation Piers Deadend Steel-Phase 2
CNST. Substation Piers structural Steel-Phase 2 17 6 08/30/23 09/22/23 CNST.FIN CNST.CBL ® Substation Piers structural Steel-Phase 2
1 1
CNST. Install above grade conduit 20 0 11/06/23 03/20/24 CNSTUI CNSTCNI Install above grade conduit
CNST Install Cable Trench-Phase 1 15 7 08/16/23 09/06/23 CNST Ft` CNSTCBL ® Install Cable Trench-Phase 1
CNST. Install Conduit-Phase 1 15 7 09/07/23 09/27/23 CNST.F� MS.SI.UR1 ® Install Conduit-Phase 1
CNST. Install Cable Trench-Phase 2 20 10 09/25/23 10/20/23 CNST.FIN CNST.CN1 ® Install Cable Trench-Phase 2
CNST. Install Conduit-Phase 2 20 7 09/28/23 10/25/23 CNST.UF CNST.CN1 ® Install Conduit-Phase 2
1
CNST. Install Little Snake-Aeolus Line Dead-End 15 4 07/05/23 07/25/23 CNST.F� MS.SI.TLIlN ® Install Little Snake-Aeolus Line Dead-End
CNST. Install Little Snake-Coyote Dead-End 15 4 07/05/23 07/25/23 CNST.F� CNST.BUS ® Install Little Snake-Coyote Dead-End
CNST. Install substation dead-Ends-Phase 1 20 16 07/26/23 08/22/23 CNST.F� MS.SI.DE.: Install substation dead-Ends-Phase 1
CNST. Install substation dead-Ends-Phase 2 20 11 08/30/23 09/27/23 CNST.FIN CNST.LIGF Install substation dead-Ends-Phase 2
milestones m Primary Baseline Actual Work Current CD=C�] Fabricators CD=40 Civil � Neg Float Bar LID Float Date Date: 04/21/23
Actual Level of Effort O O Milestone Baseline Remaining Work ♦ ♦ Milestone [__a� Electricians C=4D Line � LID Date Critical Remaining Work

A3 - Little Snake Full Detail Schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 2025
Duration ar Apr May Jun Jul Aug Sep Oct I Nov I Dec I Jan I Feb I Mar I Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar p
CNST. Substation Structural Steel-Phase 1 15 10 07/26/23 08/15/23 CNSTFI` MS.SI.SUE 6=1 Substation Structural Steel-Phase 1
CNST. Substation Structural Steel-Phase 2 15 6 09/25/23 10/13/23 1 CNST.F� CNST.BUS ® Substation Structural Steel-Phase 2
. ,.- • . L 1 3 10/04/23 _LO/31/23
CNST. I Storage Building Steel Assembly 20 3 10/04/23 10/31/23 CNSTF< CNSTABC ® Storage Building Steel Assembly
CNST. Install Bus and Connectors-Phase 1 (1 of 2) 18 0 09/28/23 10/23/23 CNST.Gf 7CNSTBUS ® Install Bus and Connectors-Phase 1 (1 of 2)
CNST. Install Bus and Connectors-Phase 1 (2 of 2) 10 0 10/24/23 11/06/23 CNST.BI 8 Install Bus and Connectors-Phase 1 (2 of 2)
CNST. Install Bus and Connectors-Phase 2(1 of 2) 20 0 11/07/23 03/21/24 CNST.SI CNST.BUS Install Bus and Connectors-Phase 2(1 of 2)
CNST. Install Bus and Connectors-Phase 2(2 of 2) 10 0 03/22/24 04/04/24 CNST.BI CNST.JUM 8 Install Bus and Connectors-Phase 2(2 of 2)
• .- • 1 1 1 1. 1
CNST. Install Jumpers-Phase 1 10 0 05/10/24 05/23/24 CNST.Bt COMMIS.1 ® Install Jumpers-Phase 1
CNST. Install Jumpers-Phase 2 61 0 05/24/24 06/03/24 CNST.BI COMMIS.1 ® Install Jumpers-Phase 2
04/03/24
CNST. Install Strain Bus(1 of 2) 20 26 10/23/23 11/17/23 CNST.SI CNSTBUS Install Strain Bus(1 of 2)
CNST. Install Strain Bus(2 of 2) 20 26 11/20/23 04/03/24 CNST.B( CNST.JUM Install Strain Bus(2 of 2)
CNST.TR Transport Reactois to Site(by others) 15 94 08/16/23 09/06/23 CNST.Fh CNST.DRE Transport Reactors to Ste(by others)
CNST.IN; Install insulators Phase 1 20 10 08/16/23 09/13/23 CNST.Fh COMMIS.1 Install insulators Phase 1
CNST.DF Dress Reactors(by others) 20 94 09/07/23 10/04/23 CNST.TF COMMIS.1 Dress Reactors(by others)
CNST.CT Install CT/VT Meter units 10 86 10/03/23 10/16/23 CNST.SI COMMIS.1 Install CT/VT Meter units
CNST.SA Install Surge Arrestors 17 11 09/28/23 10/20/23 CNST.SI MS.SI.EQF Install Surge Arrestors
CNST.RC Install Reactors 20 77 10/02/23 10/27/23 CNST.FlN COMMIS.1 Install Reactors
CNST.IN: Install insulators Phase 2 10 6 10/16/23 10/27/23 CNST.SI COMMIS.1 8 Install insulators Phase 2
CNST.LIC Yard Lighting 15 0 10/16/23 11/03/23 CNST.SI MS.SI.EQF ® Yard Lighting
CNST.SS Install Station Service Transformers 10 5 11/13/23 11/28/23 MS.SI.E( COMMIS.1 ® Install Station Service Transformers
CNST.CC Install CCVTs 15 56 11/07/23 11/29/23 CNST.BI COMMIS.1 Install CCVTs
CNST.GE Install Backup Generator 13 8 03/18/24 04/03/24 CNST.Fh COMMIS.1 Install Backup Generator
CNST.PIF Install underground piping for generator 15 40 03/18/24 04/05/24 PROC.D MS.SI.PIP1 Install underground piping forgenerator
1 1 1 1•
CNST. Install Switches-Phase 1 (1 of 2) 15 0 11/07/23 11/29/23 CNSTSI CNSTSW. ® Install Switches-Phase 1 (1 of 2)
CNST. Install Switches-Phase 1 (2 of 2) 15 0 11/30/23 04/04/24 CNST.SI CNST.SW.: Install Switches-Phase 1 (2 of 2)
CNST. Install Switches-Phase 2(1 of 2) 15 0 04/05/24 04/25/24 CNST.S� CNST.SW.: Install Switches-Phase 2(1 of 2)
CNST. Install Switches-Phase 2(2 of 2) 10 0 04/26/24 05/09/24 CNST.S� COMMIS.1 8 Install Switches-Phase 2(2 of 2)
.. I. =��KINYA• 1
CNST. Install fixed series capacitor(1 of 3) 151 32 08/16/23 09/06/23 CNST.Fh CNST.CAP Install fixed series capacitor(1 of 3)
CNST. Install fixed series capacitor(2 of 3) 15 32 09/07/23 09/27/23 CNST.FlN CNST.CAF = Install fixed series capacitor(2 of 3)
CNST. Install fixed series capacitor(3 of 3) 15 32 09/28/23 10/18/23 CNST.Fh MS.SI.EQF Install fixed series capacitor(3 of 3)
ME
Erection 1 10/16/23 04/12)
CN Control House setting 5 25 10/16/23 10/20/23 CNST.FlN CNST.CN1 Control House setting
CU Install Battery Bank&Charger 201 1 03/18/24 04/12/24 CNST.C1 MS.SI.EQF ® Install Battery Bank&Charger
1111� 40 2 11/27/23 05/06/a�
milestones o Primary Baseline Actual Work Current 1�3 � Fabricators ED=== Civil � Neg Float Bar LD Float Date Date: 04/21/23
Actual Level of Effort 0 O Milestone Baseline Remaining Work ♦ ♦ Milestone � Electricians ED=== Line � LD Date Critical Remaining Work

A3 - Little Snake Full Detail schedule
Activity ID Activity Name Original Total Float Start Finish Predecessc Successors 2023 2024 1 2025
Duration ar Apr May Jun I Jul Aug Sep Oct jNovjDecj Jan jFebj Mar Apr May Jun I Jul Aug Sep Oct Nov Decl Jan IFeblMar p
CN Install P&C Panels(1 of 2) 20 2 11/27/23 04/08/24 ENG.IFC CNSTPNL Install P&C Panels(1 of 2)
CU Install P&C Panels(2 of 2) 20 2 04/09/24 05/06/24 CNST.PP MS.SI.EQF ® Install P&C Panels(2 of 2)
06/03/24
.• .. - - . �� 1 1• 06/03/24
CNST. Terminate Control Cable-Feld 17 0 05/09/24 06/03/24 1 CNST.CP I MS.SI.TER I ® Terminate Control Cable-Field
CNST. Install Control Cable-Control House 17 0 04/16/24 05/08/24 JCNSTUF I MS.SI.TER ® Install Control Cable-Control House
• • • . - , • IM111111 11 1 1 1• .06/03/24
CNST. Terminate Control Cable-Control house 17 0 05/09/24 06/03/24 CNST Cf COMMIS.1 Terminate Control Cable-Control house
CNST. Install Control Cable-Field 18 0 03/21/24 04/15/24 CNST.Ui MS.SI.CBL ® Install Control Cable-Field
Testing &Commission 0 06/04/24 09/20/24
Substation 0 06/04/24 09/20/24
- . . . - wn
1 1. 1 1• 1
COMMIS Testing(1 of 2) 20 0 06/04/24 07/01/24 CNST.S� MS.SI.TES Testing(1 of 2)
COMMIS Testing(2 of 2) 15 0 07/02/24 07/23/24 COMMIE MS.SI.TES B Testing(2 of 2)
COMMIS Final Wei kThrough 2 0 07/24/24 07/25/24 COMMIE COMMIS.F Final Walk Through
COMMIS Punchlist 201 0 07/26/24 08/22/24 1 COMMIE I COMMIS.1 Punchlist
COMMIS Pacificorp Testing&Commissioning support 20 0 08/23/24 09/20/24 1 COMMIE I MS.SI.SUE ;;;;� Pacificorp Testing&Commissioning s
milestones o Primary Baseline Actual Work Current ED===] Fabricators ED=== Civil � Neg Float Bar LD Float Date Date: 04/21/23
Actual Level of Effort 0 0 Milestone Baseline Remaining Work ♦ ♦ Milestone � Electricians ED=== Line �L LID Date Critical Remaining Work