Various firms in Pennsylvania and across the United States specialize in aggregating Alternative Energy Credits (AECs) or serve as brokers between certified alternative energy generators and Pennsylvania’s electricity distribution companies (EDCs) or electricity generation suppliers (EGSs).

For an aggregator or broker to be authorized to buy or trade AECs, the firm must provide PennAEPS with documentation that an alternative energy generator authorized the transfer of ownership of the generator’s AECs.

The following firms act as aggregators or brokers to buy or trade AECs.

The price of an AEC is negotiated between alternative energy generators and the broker or aggregator of their choice. The PUC tracks historical AEC pricing.

AECs can be traded until they are retired for compliance purposes. No single AEC can be jointly claimed by multiple parties.