Transcript PowerPoint template draft - Alberta Electric System Operator

Reliable Power
Yellowhead Area
Transmission System
Development
Nebiyu Yimer, P.Eng
Senior Engineer, Regional Planning
March 2009
Reliable Markets
Reliable People
Outline
• Overview of the AESO
• Transmission system planning process
• Transmission Development in the Yellowhead area
– Overview of existing system
– Need for development
– Development Alternatives
– Comparison and Preliminary Recommendation
• Next steps
2
AESO: Our role and context
Plan the
Transmission System
Operate the
Wholesale
Electric
Market
Arrange Access for
Load and Generation
Direct the Day to Day Operation
of the Transmission System
Created by Legislation: Public Interest Mandate
Independent: No Commercial Interests
Collaborative and Consultative Approach
Transmission Regulated by AUC
3
The Flow of Power
4
Roles of AESO & TFO
• Alberta Electric System Operator (AESO)
- Preparation and submission of Needs Identification
Document to Alberta Utilities Commission (AUC)
• Transmission Facility Owner (TFO)
- Responsible for design, route selection and building the
facilities
5
Transmission Planning Process: Role
of AESO
• AESO
- Reviews Load/Generator interconnection request
- Determines the need for transmission development
- Develops alternatives
- Conducts necessary studies
- Undertakes Participant Involvement Program
(stakeholder engagement)
6
Transmission Planning Process:
Role of AESO (cont.)
• Planning Considerations
- Social
- Technical
- Economic
7
Transmission 2- Stage Process
• Transmission Facility Owner (TFO)
- Detailed routing and specific siting
- Detailed engineering
- Stakeholder engagement process (can be separate from AESO
process or combined)
- Submits a Facilities Application to the Alberta Utilities Commission
(AUC) for approval
8
Need for System Reinforcement
• The project area covers the following AESO
planning Areas:
- Wabamun
- Drayton Valley; and
- Edson/Hinton
• Need is driven by the following factors:
- Transmission Facilities reaching the end of their service life
- Half century old (49-54 years)
- The system is not adequate to serve projected demand
- Load is projected to grow from 564 MW to 633 MW in 10 years
- Loading and voltage issues
9
Project Area Location
10
Existing Transmission System Map
11
Existing System Simplified
Electrical Diagram
to Louise Creek
809S
To Fox Creek
A741S
Newsprint
122S
913L
To Millar
Western
484S
199L
Chevron
Knight
355S
720L
864L
White Court
268S
104L
913L
Sagitawah
77S
South
Mayerthorpe
443S
79
9L
98
9L
Benbow
397S
9L
to Whitecourt
Industrial
364S
854L
to
Sundance
310P
Lac La Nonne
994S
P.R.O.P.L.
Glenevis
442S
799L
Kaybob
346S
Marlboro
348S 854AL
Edson
58S
T.M.P.L. Niton
228S
Pinedale
207S
124L
Entwistle
235S
744L
744L
890L
156L
Gulf Robb
414S
740L
N.O
129L
202L
Onoway
352S
To Carvel 123L/104L
To
432S
North calder
896L
37S
L
5
0
9
N.O. 133
L
904
L
913L
908L
909L
234L
N.O.
N.O.
767L
1202L
1203L
Keephills 809L
(N.O)
320P
743L
Coal Spur
426S
Cadomin
983S
Coal Valley
527S
Esso west
Pembina
359S
Cardinal River
302S
Cynthia
178S
PetroCanada
Brazeau River
489S
Easy Ford
249S
Amoco Brazeau
358S
Pembina
Pipeline
3080S
Drayton
Valley
46S
544L
537L
Keystone
384S
27 MVAr
836L
841L
West Pembina
477S
844L
834L
Lodgepole
61S
202L
828L
903L
190L
Cheviot 762L
501L
101S
129L
Watson Creek
104S
Moon Lake
131S
Wabamun
to
19S
L
Sagitawah
902
77S
919L
989L
974L
to
Sundance
Bickerdike 973L
310P
39S
926L
Fickle Lake
406S
615L
Bickerdike
39S
Paddle River
106S
Violet Grove
283S
202L
L
5A
847L
to
Sundance
310P
Whitewood Wabamun
Mine
2739S
292S
T.M.P.L.
Gainford
165S
745L
Cold Creek
602S
Manalta Coal
Gregg River
476S
913L
854L
74
Dalehurst
975S
104L
922L
Mountain
Coalbed
411S
To
Westlock
438S
North
Barrhead
69S
To Blue Ridge
Lumber
701S
91
Chevron
Kaybob
551S
To
Fort Assiniboine
234S
to Alberta
7L199
To
Mitsue
732S
Elk River
445S
Brazeau
Outlet works
294S
835L
Buck Lake
454S
Brazeau
62S
801L
995L
to Benalto
17S
69 kV
Capacitor bank
138 kV
Thermal Plant
240 kV
Hydro
Decommision (Approved)
Proposed Upgrades
Decommision (proposed)
12
Wabamun Area – 104L Upgrade
• 104L is a 67 km 69 kV line from Onoway substation to
Barrhead Substation
• Supplies Onoway, Glenevis, and Lac La Nonne substations
Issues:
• Line has reached the end of its service life. Constructed in
1955 (54 years old)
• Line and substations are not adequate to serve growing load
• Poor voltage performance
• Below average reliability
13
Wabamun Area – 104L Upgrade
Alternatives:
1. Alternative 1 - Rebuild 104L and upgrade substations
•
Rebuilding 67 km of 104L
•
Upgrading 138/69 kV capacity at Barrhead 69S
•
Addition of capacitor banks at Onoway
2. Alternative 2 - Build a new 240 kV supply substation (Cherhill)
•
New 240/25 kV substation somewhere in the Cherhill area
•
Lac La Nonne and Glenevis substations will be supplied through the
distribution system
•
Decommission 104L and associated substations
14
Wabamun Area – 104L Upgrade
Comparison of Alternatives
• Alternative 2 appears more favourable
More robust
Addresses supply substation capacity issues (Onoway, Lac
La Nonne)
Lower cost
Lower land impact
15
Drayton Valley Area – 129L/537L/544L
Upgrade and reconfiguration
• 129L, 537L and 544L are 69 kV lines between Entwistle and
Lodgepole substations
• System supplies Drayton Valley, Easyford, Pembina
Pipelines and Entwistle substations
Issues:
• Lines and associated substation facilities are reaching the
end of their service life (49 to 54 years old)
• Line and substations are not adequate to serve growing load
• Below average reliability
• Lack of adequate voltage support
16
Drayton Valley Area – 129L/537L/544L
Upgrade and reconfiguration
Alternatives:
1. Alternative 1 - Rebuild lines and upgrade substations (like-forlike)
•
Rebuilding a total of up to 93 km of 69 kV line
•
Upgrade a number of substation facilities
•
Addition of three capacitor banks
2. Alternative 2 – Upgrade 129L to 138 kV and reconfigure system
•
Rebuilding 129L to 138 kV standards (47 km)
•
Easyford and Pembina Pipeline substations will be supplied through
the distribution system
•
Decommission 537L, 544L and associated substations
•
Addition of three capacitor banks
17
Drayton Valley Area – 129L/537L/544L
Upgrade and reconfiguration
Comparison of Alternatives
Alternative 2 appears more favourable
Higher capacity for long term growth
Improved system performance
Lower cost
Lower land impact
18
Hinton/Edson Area – 138 kV
Capacity Upgrade
Issues:
• 745L does not have adequate capacity to serve area load
during outages
• Area lacks adequate voltage support
• 745L is 54 years old and approaching end of service life
• Uses a sub-standard, low capacity conductor (3/0)
19
Hinton/Edson Area – 138 kV
Capacity Upgrade
Alternatives:
1. Alternative 1 - Rebuild and reconfigure 745L
•
Rebuild 745L (80 km) with higher capacity conductors (477 kcmil)
•
Construct 8 km new double circuit 138 kV line from Bikerdike substation into
745L
•
Add one capacitor bank at Cold Creek Substation
2.
•
•
•
•
•
Alternative 2 – Build a new 138 kV line and decommission 745L
Build a new single circuit 138 kV line from 740L near Gulf Robb tap to Cold
Creek Substation (45 km)
Build a new switching station near the Gulf Robb tap
Construct 8 km new single circuit 138 kV line between Bikerdike to Edson
substations
Upgrade 745L from Cold Creek to Dalehurst tap and decommission the rest
Add one capacitor bank at Cold Creek Substation
20
Hinton/Edson Area – 138 kV
Capacity Upgrade
Comparison of Alternatives
Alternative 1 appears more favourable:
√ Better access for maintenance and quick restoration
√ Lower cost
√ Minimal new right of way
√ Less land impact
21
Summary of Potential Developments &
Cost Estimates
Description
Cost
(millions, 2008$)
Development A: Wabamun Area
Construct new Cherhill 240/25 kV (POD) Substation
$19.83
Development B: Drayton Valley Area
Upgrade 69 kV system in the Drayton Valley area to 138 kV
$32.38
Install one (1) 27 MVAr Capacitor Bank at Cynthia 178S
$1.96
Install one (1) 27 MVAr Capacitor Bank at Amoco Brazeau 358S
$1.96
Install one (1) 27 MVAr Capacitor Bank at Brazeau 62S
$1.96
Development C: Hinton/Edson Area
Rebuild and reconfigure 745L Edson 58S to Cold Creek 602S
$27.71
Install one (1) 27 MVAr Capacitor Bank at Cold Creek 602S
$1.96
Total Cost (2008$)
$87.76
- The total cost of additional potential distribution-related work associated with
the transmission development is $17.60 million (2008$).
22
Potential Developments –
Simplified Electrical Diagram
to Louise Creek
809S
to Alberta
Newsprint
122S
7L199
913L
To Millar
Western
484S
199L
Chevron
Knight
355S
720L
864L
Sagitawah
77S
913L
9L
9L
98
South
Mayerthorpe
443S
79
91
9L
Kaybob
346S
to Whitecourt
Industrial
364S
854L
to
Sundance
310P
Lac La Nonne
994S
Marlboro
348S 854AL
Mountain
Coalbed
411S
Edson
58S
74
Pinedale
207S
124L
Entwistle
235S
744L
744L
890L
847L
Fickle Lake
406S
Bickerdike
39S
Moon Lake
131S
740L
N.O
202L
896L to Carvel
lder
432S
h ca
Nort
L to 37S
905
N.O. 133
L
904
L
913L
908L
909L
234L
N.O.
N.O.
767L
1202L
1203L
Keephills 809L
(N.O)
320P
743L
Coal Spur
426S
Cadomin
983S
Coal Valley
527S
Esso west
Pembina
359S
Cardinal River
302S
PetroCanada
Brazeau River
489S
828L
Cynthia
178S
Easy Ford
249S
Lodgepole
61S
202L
537L
Amoco Brazeau
358S
This is an electrical single line
diagram and not geographically
representative.
544L
Keystone
384S
27 MVAr
836L
Violet Grove
283S
202L
West Pembina
477S
844L
834L
Pembina
Pipeline
3080S
841L
Note:
Onoway
352S
123L/104L
903L
190L
Cheviot 762L
501L
101S
129L
Watson Creek
104S
Wabamun
19S
to
L
Sagitawah
902
77S
919L
989L
974L
to
Sundance
Bickerdike 973L
310P
39S
926L
615L
Gulf Robb
414S
Whitewood Wabamun
Mine
2739S
292S
156L
Paddle River
106S
to
Sundance
310P
129L
Cold Creek
602S
Manalta Coal
Gregg River
476S
T.M.P.L.
Gainford
165S
745L
L
5A
Dalehurst
975S
T.M.P.L. Niton
228S
854L
P.R.O.P.L.
Glenevis
442S
New Cherhill
POD 240/25 kV
799L
Chevron
Kaybob
551S
White Court
268S
Benbow
397S
To
Westlock
438S
North
Barrhead
69S
To Blue Ridge
Lumber
701S
922L
To Fox Creek
A741S
To
Mitsue
732S
To
Fort Assiniboine
234S
Elk River Brazeau
445S Outlet works
294S
835L
Buck Lake
454S
Brazeau
62S
801L
995L
to Benalto
17S
69 kV
Capacitor bank
138 kV
Thermal Plant
240 kV
Hydro
Decommision (Approved)
Proposed Upgrades
Decommision (proposed)
23
Stakeholder Engagement Process
• AESO meeting with and/or sending information to:
- 47,018 residents and occupants by postal code
- Municipalities in the study area
- Provincial representatives
- First Nations and Métis Settlements
• Letter with background information requesting feedback delivered to residences in the area
via a postal code mail out
• Newspaper advertisements requesting feedback in:
-
Stony Plain Reporter
Spruce Grove Examiner
Barrhead Leader
Onoway Community Voice
Wabamun Community Voice
Edson Leader
Hinton Parklander
Drayton Valley Western Review
• Project information on AESO website requesting feedback
24
Next Steps
• AESO
- Completes Needs Identification Document (NID)
- AESO to file NID with the Alberta Utilities Commission (AUC) for
approval (Q2/2009)
• Transmission Facility Owner (TFO)
- AltaLink directed by the AESO to develop a Facilities Application for
detailed engineering, siting, and routing for facilities
- Facilities Application to be developed with further stakeholder
engagement and submitted to the AUC for approval
25
Contact us
• General AESO Enquiries
- On our web site, http://www.aeso.ca
- Via email to [email protected]
• Yellowhead Area Transmission Development enquiries:
- Via email to [email protected]
- Via telephone at 1-888-866-2959
- At our web site, http://www.aeso.ca/transmission/16784.html
26