Energy

Tiny particulate matter from wildfire smoke can cause respiratory problems.

Public Service Commission members, who approved Delmarva Power’s interim rate request, questioned the scope of its oversight authority.

Nearby residents opposed the project during a tense public meeting Tuesday.

Bucks County residents are raising concerns over noise and safety, as well as impacts on the water supply, as Sunoco works to clean up leaked jet fuel.

Sherrill signed a package of legislation this week that aims to prevent data centers and utility companies from passing costs onto ratepayers.

IBEW Local 614 is celebrating a deal that offers pensions to recent hires and boosts health care coverage. Union members will now vote on whether to ratify the contract.

The union says PECO is dragging its heels to wear them out. PECO accuses the union of blocking restoration work.

The strike centers mainly on wages and benefits. PECO says it has “comprehensive plans” to maintain service during the strike.

“Flash! Bang! Boom! A History of Fireworks” tells the story of fireworks from the earliest Chinese inventions to today’s choreographed pyrotechnic displays.

The dangerous heat is accelerating air conditioner use. Data centers could be directed to use their own backup power.

The annual Delaware River Sojourn has been drawing kayakers and canoers to the Delaware River for 31 years.

Residents struggling to pay their water and electric bills could be spared from shutoffs as temperatures rise.

Humans cause almost all of the state’s wildfires. Climate change is making them worse.

Amid a backdrop of steadily rising temperatures, the city's average from March through May tied a record set in 1921.

PGW agreed to hold public meetings on reducing its carbon footprint. At the first meeting, there were lots of questions from the public but no answers from the utility.