1. Idaho Power Filing Date of LGIP: Oct. 2, 2023

• Idaho Power submitted its required Compliance Filing with FERC Order 2023 (ER24-10-000). On March 21, 2024, FERC issued an Order accepting in part and rejecting in part, subject to further compliance filing, Idaho Power’s Compliance Filing with FERC Order 2023. The version of the Tariff currently posted on OASIS and this site contains both accepted and rejected language in Attachments M and N to conform with the version of the Tariff currently on record with FERC. The rejected language will be addressed in Idaho Power’s future FERC 2023 and 2023-A compliance filing as required by FERC.
• Large Generation Interconnection Procedures (LGIP)

2. 30 Calendar Days after Filing: Nov. 1, 2023

• In accordance with FERC Order 2023 and Section 5.1 of Idaho Power’s LGIP Compliance Filing, any Interconnection Customer assigned a Queue Position as of 11:59:59 p.m. (MT) on November 1, 2023 (i.e., 30 Calendar Days after the October 2, 2023 filing date) shall retain that Queue Position subject to the requirements in Sections 5.1.1, 5.1.1.1, and 5.1.1.2 of the filed LGIP.
• Interconnection Requests submitted after this date will not be eligible to proceed into the transition process and can be submitted in the initial Cluster Request Window, as described in Section 3.4.1 of the filed LGIP.

3. Commission Approved Effective Date (CAED): Jan. 1, 2024

• Idaho Power shall offer the Transitional Cluster Study Agreement (Appendix 7) no later than the CAED, per section 5.1.1.2 of the LGIP.

4. 60 days after CAED: March 1, 2024

• Applicable Transitional Cluster Study documents, data and deposit due.
• Transitional Cluster Study Submission Checklist

5. Interim Transitional Cluster Study Report (TCSR): July 19, 2024

• Interconnection Customer shall have 30 Calendar Days to comment on the Interim TCSR once it has been received.

6. Final Transitional Cluster Study Report: Dec. 26, 2024

• After the Final TCSR is issued, Interconnection Customer shall proceed pursuant to Section 11 of the LGIP to enter into a Large Generator Interconnection Agreement (LGIA).

1. Idaho Power Filing Date of LGIP: Oct. 2, 2023

• Idaho Power submitted its required Compliance Filing with FERC Order 2023 (ER24-10-000). On March 21, 2024, FERC issued an Order accepting in part and rejecting in part, subject to further compliance filing, Idaho Power’s Compliance Filing with FERC Order 2023. The version of the Tariff currently posted on OASIS and this site contains both accepted and rejected language in Attachments M and N to conform with the version of the Tariff currently on record with FERC. The rejected language will be addressed in Idaho Power’s future FERC 2023 and 2023-A compliance filing as required by FERC.
• Large Generation Interconnection Procedures (LGIP)

2. 30 Calendar Days after Filing: Nov. 1, 2023

• In accordance with FERC Order 2023 and Section 5.1 of Idaho Power’s LGIP Compliance Filing, any Interconnection Customer assigned a Queue Position as of 11:59:59 p.m. (MT) on November 1, 2023 (i.e., 30 Calendar Days after the October 2, 2023 filing date) shall retain that Queue Position subject to the requirements in Sections 5.1.1, 5.1.1.1, and 5.1.1.2 of the filed LGIP.
• Interconnection Requests submitted after this date will not be eligible to proceed into the transition process and can be submitted in the initial Cluster Request Window, as described in Section 3.4.1 of the filed LGIP.

3. Commission Approved Effective Date (CAED): Jan. 1, 2024

• Idaho Power shall offer the Transitional Serial Interconnection Facilities Study Agreement (Appendix 8) no later than the CAED per section 5.1.1.1 of the LGIP.

4. 60 days after CAED: March 1, 2024

• Applicable Transitional Serial Study documents, data and deposit due.
• Transitional Serial Study Submission Checklist

5. Transitional Serial Facilities Study Report (TFSR): May 30, 2024

• After the Final TFSR is issued, Interconnection Customer shall proceed pursuant to Section 11 of this LGIP to enter into a Large Generator Interconnection Agreement (LGIA).

1. Eligibility Requirements

Review the full requirements in Section 3.4.2 of the LGIP.

• Large Generation Interconnection Procedures (LGIP)
• $5,000 Non-Refundable Application Fee
• Study Deposit
  • $35,000 plus $1,000 per MW for Interconnection Requests ≥ 20 MW < 80 MW
  • $150,000 for Interconnection Requests ≥ 80 MW < 200 MW
  • $250,000 for Interconnection Requests ≥ 200 MW
• Commercial Readiness Deposit equal to two times the study deposit
• LGIP Interconnection Application
• 90% Site Control as outlined in the Business Practices
• Data Requirements similar to the Transitional Cluster Study Submission Checklist

2. Cluster Request Window: 45 Calendar Days

The first Cluster Request Window shall open March 1, 2025.

• Cluster Request Window shall open every March 1.
• Interconnection Requests submitted outside of this time will not be considered.

3. Customer Engagement Window: 60 Calendar Days

• View OASIS to view the application list.

4. Cluster Study: 150 Calendar Days

Evaluates the impact of the proposed interconnection on the reliability of the Transmission System. Consists of power flow, stability, and short circuit analyses as well as provides a list of facilities that are required.

• LGIP Cluster Study Agreement

5. Cluster Study Restudies: 150 Calendar Days

If a restudy is deemed necessary, Idaho Power will notify the Interconnection Customers within 30 Calendar Days after the Cluster Study Report Meeting. If there are no withdrawals after the completion of the Cluster Study or Restudy, or a restudy is deemed unnecessary, Idaho Power will notify the Interconnection Customers within 30 Calendar Days of such determination.

• Demonstration of Continued Site Control
• Bring Commercial Readiness Deposit to 5% of Interconnection Customer’s Network Upgrade costs assigned in the Cluster Study.

6. Facility Study: 90–180 Calendar Days

Shall be specific to each Interconnection Request and be preformed on an individual basis

• LGIP Facilities Study Agreement
• 100% Site Control as outlined in the Business Practices
• Bring Commercial Readiness Deposit to 10% of Interconnection Customer’s Network Upgrade costs assigned in the Cluster Study or Cluster Restudy.

7. Large Generator Interconnection Agreement (LGIA)

All projects greater than 20 MW are subject to technical requirements under the LGIA.

• Large Generator Interconnection Agreement
  • Demonstration of Continued Site Control
  • Deposit equal to 20% of Interconnection Customer’s estimated Network Upgrade costs assigned in the Draft LGIA minus the total amount of Commercial Readiness Deposits previously provided.