In a development that signals new momentum for clean energy innovation, Constellation and Xpansiv have announced a collaboration to launch emission-free energy certificates (EFECs) on an online trading platform. Beginning December 2, 2025, Constellation will offer EFECs sourced from its clean energy centers in the PJM region on Xpansiv’s CBL spot exchange, providing verifiable, traceable certificates linked to carbon-free power generation. The initiative is designed to make clean energy procurement more transparent and accessible, while also supporting the energy transition in sectors facing surging electricity demand—from data centers to electric vehicles.
Xpansiv will also expand its North American Renewables Registry to issue nuclear-based zero-emission certificates with full lifecycle traceability. The companies said the effort reflects growing collaboration across the private sector to strengthen accountability and market confidence in carbon-free energy sourcing. As demand for reliable, low-emission power accelerates, this partnership highlights how established energy producers and digital infrastructure providers can work together to create scalable systems that make clean energy more measurable, tradable, and impactful.