DPL's Electric Generation Meets High Energy Demand.

DAYTON, Ohio--(BUSINESS WIRE)--July 9, 1999--

DPL Inc.'s (NYSE:DPL) generation units performed extremely well during the past week of blistering heat and high humidity. With the heat index hitting temperatures greater than 110 degrees and power markets tightening, DPL's generation availability record was 97.5% during this key period, significantly above industry averages.

"The bottom line is that all of our generation runs when needed," explained Allen Hill, DPL Inc. President and Chief Executive Officer. "This high level of availability allowed us to meet customer demand and ultimately be a net seller of generation during this high temperature period."

During this heat wave, DPL reached more than 98% of its all-time record demand set last July, while having essentially no heat-related customer outages. DPL's peaking generation played an important role in this success.

"We have a strong record in terms of generation performance, consistently beating national averages," stated Mr. Hill. "It's this ability to execute, to have generation available at key times, that is critical in a competitive energy market."

This week's performance mirrors DPL's exceptional generation record of last summer when the Public Utilities Commission of Ohio (PUCO) recognized DPL for its reliability. In fact, a report released by the PUCO on power shortages in June 1998 recognized DPL as being Ohio's only major electric company that did not have to curtail power to its customers.

DPL consistently ranks in the top ten in the country in terms of generation availability and efficiency.

DPL Inc. is a diversified energy company supplying electric and gas energy services to 500,000 electric customers and 300,000 gas customers in the Midwest through its subsidiary, The Dayton Power and Light Company.