Imports and Exports - AESOImports and Exports ... importer is prepared to provide during each...

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Imports and Exports Currently the AESO only offers import and export opportunity service on the interties. This is considered opportunity as it is made available when there is Available Transfer Capability and is curtailed as a priority for reliability reasons.

Transmission access is required for parties wishing to arrange for electricity imports or exports to or from adjacent jurisdictions. At this time the Alberta Interconnected Electric System has transmission interconnections or interties with both British Columbia (rated capability of 1,000 MW for export and 1,200 MW for import) and Saskatchewan (rated capability of 150 MW for both export and import. In the future a new line will be added with Montana (rated capability of 300 MW for both export and import). The Montana Alberta Transmission Line (MATL) is a merchant line, which means that it is being built with private funds. The actual operating capability of these interties is less than the rated capability in many cases due to reliability requirements and constraints on Alberta’s transmission system. From an energy perspective, imports and exports interact with the energy market merit order today as price takers because they are not dispatchable in real-time. Importers offer at $0/MWh and exporters bid at $999.99/MWh and are scheduled firm for the hour.

Setting the Stage As an employee of Chinook 6 you are responsible for submitting new offers and bids for energy using import and export assets in the Energy Trading System.

Step 1: Create a new energy submission using import asset A. Click [Submission] from the list on the left

B. Click on Energy Submission tab

C. From the Select Submission Type

• Choose New Submission

D. From Select Submission Action • Choose Create new from Scratch

E. From Select Dispatch Date • Choose the applicable date. You may enter in submissions for energy for the next 7 days this

is known as the “forecast period”.. • Select Next

E. Select asset id “IIXB”

E. A new Submission screen will appear for the BC Import asset IIXB

F. Change the AC from 800MW to 0MW. You can manually enter in each value for the 24 hour period or you may use the filler on the left and click on “fill AC” when complete. This will automatically populate all hours for the 24 hour period.

Note: the Maximum Capability for imports is the Available Capability (the maximum quantity (MW) that the importer is prepared to provide during each settlement interval of the trading day). The default of 800MW is tied to the operating capability of the British Columbia tie line.

G. Standing Submission • Participants may submit offers for the forecast scheduling period (next 7 days) via the energy

submission tab in ETS by selecting “Yes” for Standing Submission.

• Importers currently only have one block of energy for their energy submissions.

H. Acknowledgement • Hitting Submit will generate the Acknowledgement for the energy offer created for October 21,

2007. These acknowledgements can be useful in Information Requests submitted by our Compliance team to participants. From time to time participants have submission problems and these acknowledgements may also be helpful to the AESO’s investigation should the problem reside on our end.

Setting the Stage As an employee of Chinook 6 you are responsible for restating offers for energy using import and export assets in the Energy Trading System (ETS).

Step 1: Restate an energy submission using import asset A. Follow the same steps as in A and B under “Create a new energy

submission using import asset” B. From the Select Submission Type

Choose Restatement

C. From the Select Submission Action Choose Edit Existing

D. From the Select Dispatch Date Select the appropriate date Note you may only restate for the current day and the next trading day. If you are entering a

restatement after 12 noon you will be able to restate for the current day and the next trading day. If you are entering a restatement before 12 noon then you may only restate for the current trading day.

E. From the Choose Asset Type: Select the Source default and hit “Next”

F. From the Energy Submission >Results Select IIXB

G. From the Restatement Screen – Restating during T-2 You may restate during the T-2 window. All previous hours will be greyed out. If restating during T-2 you must make the restatements directly into the grid. You will not be able to

use the Filler. If you restate during T-2 you must have an Acceptable Operational Reason to do so and you may

only restate your MWs. All preceding hours will be greyed out. A red acknowledgement warning will appear if you are restating during T-2 to remind you that you need an Acceptable Operational Reason for restating during this period.

Restating outside T-2 To restate outside of the T-2 window you may use the Filler to the left of the grid to populate the grid and the Reason field for all hours as required or you may manually enter info into the grid.

H. From the Restatement screen Choose Submit and print off Acknowledgement

Step 1: Creating a new bid offer using export asset A. Click on [Submission] from the list on the left

B. Click on Energy Submission tab

C. From the Select Energy Submission type: Choose New Submission

D. From the Select Submission Action: Choose Create New from Scratch

E. From the Select Dispatch Date: • Choose the applicable date. You may enter in submissions for energy for the next 7 days this

is known as the “forecast period”

F. From the Choose the Asset type: Choose Sink and select Next

G. From the Energy Submission – Result screen Choose asset “EEXB”

H. A new Submission screen will appear for the BC export asset EEXB

I. Create a standing submission for asset EEXB by using the Filler

Enter $999.99 in the price field and 0 in the Amount (MW) field and select “Fill Price & MW” - This will populate all hours for entire day

Select “Yes” for Standing Submission and hit Submit - By doing this initial set up and selection of the Standing Submission this will become your on-

going or Standing Submission - Note: the Maximum Capability indicated for this BC export asset is 800MW – this value is tied to

the operational capacity of the tie line and is not an expectation of what you will be able to export.

J. Acknowledgement Hitting Submit will generate the Acknowledgement for the energy bid created for October 20, 2007.

Step 1 Restating a bid offer A. Follow the same steps as in A and B under “Create a new bid offer using

export asset” B. From the Select Submission Type

Choose Restatement

C. From the Select Submission Action Choose Edit Existing

D. From the Select Dispatch Date Choose the applicable date. Note that if you are restating an energy bid after 12 noon you will only be

able to restate for the current day and the next trading day. For example, if the current date is March 10, 2011 and the time is after 12 p.m. you may restate for March 10 and March 11. If you are

restating before 12 noon and the current date is March 10, 2011 you will only be able to restate for March 10, 2011.

E. From the Choose Asset Type Select Sink and hit Next

F. Select asset id EEXB

G. Restate during T-2 When restating during T-2 you will see a red acknowledgement banner when you select submit

therefore you must provide an Acceptable Operational Reason for restating during this period before selecting Yes.

H. Acknowledgement Hitting Yes will generate the Acknowledgement for the energy restatement created for October 20,

2007.

IMPORTANT REMINDERS

Relevant ISO rules for import/exports It is the participant’s responsibility to fully understand the ISO rules, Alberta Reliability Standards and ISO Tariff. The following is intended to serve as an overview only.

ISO rule 6.3.3 and ISO rule 3.5 are the most relevant to importers/exporters and include the following obligations.

- Importers and exporters must make reasonable efforts to procure transmission service for the offered available capability. This means that a participant who, at T-2, has a declared intent to import or export in/out of the Alberta market, must be able to demonstrate to the AESO (if requested) that they made efforts to acquire transmission for the hour in question.

- A declared offer/bid at T-2 is a commitment to flow during that settlement hour. A participant who fails to flow the amount of energy declared through their offer/bid at T-2 must have an acceptable operational reason (as defined in the ISO rules) and must restate their offer/bid (in accordance with ISO rule 3.5.3.2/3.5.4.2) to reflect their intended flow as soon as they become aware that it will be less than that declared at T-2.

- A pool participant must record and provide to the ISO, if requested and within a reasonable time from such request, the basis on which it determined that there was an acceptable operational reason.

- A participant is not allowed to flow more energy than was declared in their offer/bid at T-2.

Common ISO rule Contraventions Failure to keep offer/bid synchronized with the intended flow (as indicated through e-tags) A restatement of an offer/bid within T-2 without an acceptable operational reason (as defined in the

ISO rules) Restating the offer/bid within the T-2 period to a level above that which was in effect at T-2

T-2 Refers to the current hour and the next two hours. For example if the current time is 16:27 then T-2 would include HE17, HE18 and HE19.

http://www.aeso.ca/downloads/Section_6_Dispatch_and_Directives_-_ISO_Rules_-__October_28_2010.pdf

http://www.aeso.ca/downloads/Section_3_Offers_Bids_Ancillary_Services_and_Asset_Declarations_-_December_16_2009.pdf



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