Cherokee County Electric Cooperative Association (CCECA) is a distribution cooperative, which means it purchases power wholesale from another entity, then distributes that power to its members. CCECA buys the bulk of its power from the Generation and Transmission Cooperative (G&T). The PCRF is the part of your electric bill that directly reflects the fluctuating cost of generating power.
Whenever you see the PCRF charge go up or down, it means CCECA is modifying it in order to purchase the power needed to provide electricity to all of its members.