DETERMINATION OF AFRR REQUESTED XX. XXXX determines the aFRR Requested RD per Time Step. The aFRR Requested RD is the sum of the aFRR Requested RD per aFRR Energy Bid, determined in accordance with Annex 10.B: aFRR Requested RD (ts) = ∑ aFRR Requested RD Bid (ts)