NRG Energy has become the second-largest generating company in the country, thanks in part to its acquisition of Edison Mission Energy.

The volume and magnitude of changes PJM is attempting to impose on demand response raise the question of whether the high-flying sector is still a growth business or one in retreat.

Company briefs on some of the companies doing business in PJM: FirstEnergy, PPL, NRG, Duke Energy, and EnerNOC.

By Rich Heidorn Jr. With its market-leading status in demand response, blue chip clients and international expansion plans, EnerNOC Inc. may be a good long-...

Three demand response providers asked the Federal Energy Regulatory Commission April 2 to block new PJM rules requiring them to provide officer certification...