Vectren : Unseasonably warm May weather to drive June electric bills; customers encouraged to be mindful of energy efficiency resources given the early start to summer

News Release

Vectren Corporation One Vectren Square Evansville, IN 47708

FOR IMMEDIATE RELEASE

May 30, 2018

Media contact: Natalie Hedde, [phone] [e-mail]

Unseasonably warm May weather to drive June electric bills; customers encouraged to be mindful of energy efficiency resources given the early start to summer

Evansville, Ind. - With summer temperatures arriving earlier than usual, Vectren is encouraging customers to consider the likely increase in bills received in the month of June, which reflect May consumption. During the month of May, temperatures were higher-than-normal for spring, which have caused customers to start utilizing their air conditioners and cooling fans earlier than usual.

"May was significantly warmer than normal and has undoubtedly caused customers' cooling systems to run earlier and more often than last spring," said Brad Ellsworth, president of Vectren Energy Delivery-South."The early start to summer is certainly driving energy usage and bills higher. We are encouraging customers that may find themselves with a higher than expected bill to reach out to us before they have an issue with paying their bill."

Bills received in June, which reflect May usage, are expected to be higher on average than bills received last month, which reflects a more seasonably appropriate month of April. Customers who may be challenged to pay or those who have received a disconnect notice should call Vectren at 1-800-227-1376 to see if they qualify for a payment arrangement, where the bill amount can be spread into smaller payments over a set period of time.

Customers are reminded to consider ways to conserve energy, which will help reduce summer energy bills this season. Vectren offers a variety of energy-saving tips as well as information on additional energy efficiency programs for residential and business customers on its website. Learn more about Vectren's programs atwww.vectren.com/saveenergy or call 1-866-240-8476.

About Vectren

Vectren Corporation (NYSE: VVC) is an energy holding company headquartered in Evansville, Ind. Vectren's energy delivery subsidiaries provide gas and/or electricity to more than 1 million customers in adjoining service territories that cover nearly two-thirds of Indiana and about 20 percent of Ohio, primarily in the west-central area. Vectren's nonutility subsidiaries and affiliates currently offer energy-related products and services to customers throughout the U.S. These include infrastructure services and energy services. To learn more about Vectren, visitwww.vectren.com.

- end -