EXHIBIT 23 PRICEWATERHOUSE COOPERS - ------------------------------------------------------------------------------- PricewaterhouseCoopers LLP 1301 Avenue of the Americas New York, NY 10019-6013 Telephone (646) 471 4000 Facsimile (646) 394 5324 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Forms S-8 (Nos. 333-107021, 333-107020 and 33-38890) of UIL Holdings Corporation of our reports dated January 26, 2004 relating to the financial statements and the financial statement schedule, which appears in this Form 10-K. /s/ PricewaterhouseCoopers LLP Stamford, Connecticut February 27, 2004