PORTLAND — A learning expedition program at Portland’s King Middle School will be featured Tuesday night on a segment of “PBS NewsHour” – a national nightly news program.

A NewsHour news crew began taping at King Middle School last fall, according to a statement issued by Portland Public Schools.

The first of two segments will air Tuesday at 7 p.m. on the Maine Public Broadcasting Network (MPBN). It will focus on an eighth-grade learning expedition program known as “reVOLT.”

Students who are enrolled in “reVOLT” learn about energy, energy transformations and engineering processes. They also study alternative forms of energy and their applications in Maine and worldwide.

Students have designed devices that solve modern-day energy needs, including solar-powered water purifiers, rechargeable house lighting and wind-powered cell-phone chargers, according to a school statement.