X-energy’s Xe-100 Gen IV reactor uses TRISO fuel and helium cooling to deliver meltdown-resistant, modular nuclear power.

Modular construction can build housing faster and cheaper than traditional methods, but can Philadelphia convince developers to set up factories here?

The 10 home designs should be finalized by the end of the year and are being piloted in three communities first.

For decades, the site — 35 acres of grassy lots where 1,000 rowhomes once stood — has sat empty. Parker’s proposal could change that, but residents are wary.