For the purposes of Calculation of Production Imbalances for RES Units with Market Participation Obligation under a DSAS Contract, each non-Dispatchable RES Units Portfolio shall be generally symbolized as ${\text{e}}_{\text{rep,oper,z}}$, where:

• $rep$ the RES Units Portfolio representative. The non-Dispatchable RES Units Portfolios shall be represented by a RES Producer, a RES Aggregator or by the Last Resort RES Aggregator.

• $oper$ the operational status, which corresponds to normal operation under a DSAS contract or Testing Operation under a DSAS contract.

• $z$ the HETS Bidding Zones.