Hampton, NH - (May 17, 2005): Unitil Corporation (AMEX:UTL) today announced it upgraded its website, www.unitil.com, with information and tools on energy usage and efficiency, electricity education and other home energy reference material. Additionally, customers can enroll in automated bill paying services or pay their bills online with a check or credit card.

"We want to make it easier for our customers to manage their energy costs and the web is a great way to do it," said Mark Lambert, Director, Customer Service. "In a simple and secure manner, customers can review and pay their bills, understand their energy usage and how they can control it, and learn more about the science and safety of energy."

For example, the HomeEnergySuite™ includes the HomeEnergyCalculator™, which estimates a home's monthly and annual operating costs. It provides estimates of savings achievable by making simple changes to the home, such as adjusting thermostat settings or reducing air leaks. It also shows energy consumed by home appliances and links to customized energy tips for the particular appliance. The HomeEnergySuite™ was developed by Apogee Interactive, www.apogee.net, an Atlanta, Georgia based company providing Web-based solutions for the energy industry.

Additionally, there are sections for children and adults interested in learning more about energy. The Kid's Korner is packed with more than 100 pages of games, activities, experiments, coloring pages, and animations designed to teach children safety tips, energy efficiency techniques, and the science of energy. For high school and college graduates interested in learning more, The Fundamentals of Electricity discusses generation, transmission, circuits, wiring, and safety.

Unitil provides a variety of payment options to accommodate customer needs, including an automated direct debit option and credit card or electronic check payment options through our web or telephone systems... Customers can find out more on www.unitil.com or by calling in Massachusetts 1-888-301-7700, in the New Hampshire Seacoast 1-800-582-7276 or in the New Hampshire Capital area 1-800-852-3339.

Unitil Corporation (AMEX:UTL) at www.unitil.com is a public utility holding company with subsidiaries providing electric service in New Hampshire, electric and gas service in Massachusetts and energy services throughout the Northeast.

Contact
Stephanye Schuyler
schuyler@unitil.com