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.

HB 501 amends Pennsylvania's Alternative Energy Portfolio Standards Act to update definitions and clarify requirements for renewable energy compliance. It specifically adds "advanced reactor" (including small modular reactors) to eligible energy sources, refines criteria for low-impact hydropower, and updates definitions for biomass, biogas, and alternative energy credits. The bill affects electric utilities required to meet portfolio standards by specifying which energy sources count toward compliance and how credits are calculated. These changes aim to modernize the framework for renewable energy reporting and incentives without altering current percentage targets. The bill is currently in committee review (Environmental & Natural Resource Protection).