Public Service Company of Colorado’s offering of $250 million aggregate principal amount of 3.55% First Mortgage Bonds, Series No. 29 due 2046

Hunton & Williams LLP advised the underwriters on an SEC-registered offering of $250 million aggregate principal amount 3.55% First Mortgage Bonds, Series No. 29 due 2046.

Public Service Company of Colorado (a Colorado corporation) (the Company), a subsidiary of Xcel Energy Inc., is a major US electricity and natural gas company, with operations in Colorado. The Company provides a comprehensive portfolio of energy-related products and services to 1.4 million electricity customers and 1.4 million natural gas customers. The Company’s headquarters are located in Denver.

The Hunton & Williams LLP team included Pete O’Brien, Steve Friend and Andrew Spector.