NRG Energy is under mild pressure today, tracking a broader selloff among independent power producers as peers like Constellation Energy and Vistra also face downward momentum. The primary catalyst for this sector-wide weakness stems from an analyst warning regarding acute uncertainty following a FERC delay of PJM’s plan to address a 6,831-megawatt capacity shortfall. This regulatory uncertainty has weighed on the stock throughout the week, compounding the downward trend that saw shares fall 3.4% on September 28.