Kauai Island Utility Cooperative said Friday it will use energy-saving LEDs to retrofit 3,500 streetlights that are owned by Kauai County and the state.

KIUC said it received approval from the Public Utilities Commission to retrofit the lights. The cooperative said work to retrofit the streetlights will begin in 2016 and be completed in about a year. The LED lights use about 70 percent less energy than traditional high-pressure sodium lights. The county, which is KIUC’s largest customer, could potentially save $500,000 annually on its bills for 2,900 streetlights. The state has 582 lights on Kauai.

KIUC will pay for the retrofitting work and recover the cost through a revised tariff with the county and state. The PUC approved the new tariff in an order issued Oct. 8.

US Airways has final flight before merger

PHILADELPHIA >> US Airways’ final flight took off Friday — a round-trip journey between Philadelphia and San Francisco. Flight 1939, named for the airline’s founding year, departed Friday morning from Philadelphia International Airport and was scheduled to make stops in Charlotte, N.C.; Phoenix; and San Francisco before returning as a red-eye flight back to Philadelphia today. All future flights will fly under the American Airlines banner, following the completion of a merger between the two airlines.

ON THE MOVE

Tom Petrus & Miller has announced that Ashley R. Fukutomi has joined the firm as an associate. In 2014 she earned her law degree from the William S. Richardson School of Law at the University of Hawaii, graduating cum laude. Fukutomi previously worked as a law clerk for Judge Edwin C. Nacino of the 1st state Circuit Court.

Goodsill Anderson Quinn & Stifel have announced two new associates:

>> Lauren K. Chun practices in litigation. She previously clerked for Judge Katherine G. Leonard of the state Intermediate Court of Appeals.

>> Ewan C. Rayner practices in litigation and environmental law. He served as a law clerk to Chief Judge Mark E. Recktenwald of the Hawaii Supreme Court and was a volunteer summer clerk for Judge Karen T. Nakasone of the 1st state Circuit Court.