An Act amending the act of November 30, 2004 (P.L.1672, No.213), known as the Alternative Energy Portfolio Standards Act, further providing for definitions; providing for force majeure; further providing for alternative energy portfolio standards, for portfolio requirements in other states, for health and safety standards and for interagency responsibilities; providing for zero emissions credits; and making editorial changes.

SB 501 renames the Alternative Energy Portfolio Standards Act to the Pennsylvania Reliable Energy Sustainability Standards Act. The bill revises definitions for various energy sources, expanding what qualifies as "alternative" or "sustainable" energy to include "advanced reactors." It introduces new "zero emissions credits" and updates the portfolio requirements that electric distribution and supply companies must meet. Additionally, it provides for force majeure events, health and safety standards, and interagency responsibilities related to energy generation.