Common Contracts

PACIFICORP and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of March 20, 2025 to Indenture dated as of March 20, 2025 7.375% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2055

First Supplemental Indenture • March 20th, 2025 • Pacificorp /Or/ • Electric services • New York

• Contract Type
  First Supplemental Indenture
• Filed
  March 20th, 2025
• Company
  Pacificorp /Or/
• Industry
  Electric services
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE, dated as of March 20, 2025 (the “First Supplemental Indenture”), is between PacifiCorp, an Oregon corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).

NEVADA POWER COMPANY and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of February 3, 2025 to Indenture dated as of February 3, 2025 6.250% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2055

First Supplemental Indenture • February 5th, 2025 • Nevada Power Co • Electric services • New York

• Contract Type
  First Supplemental Indenture
• Filed
  February 5th, 2025
• Company
  Nevada Power Co
• Industry
  Electric services
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE, dated as of February 3, 2025 (the “First Supplemental Indenture”), is between Nevada Power Company, a Nevada corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).