Balancing · hour 17 · 2026-05-29
Stage status timestamp (balancing complete): 2026-05-29T18:50:00Z
Illustrative imbalance pricing (Trading Rules R2 §07 placeholder formula). Balancing consumes the final post-IDM schedule and prices each party's deviation from it against the metered outturn.
Per-party imbalance settlement
Metered outturn vs final schedule. A modelled residual under-delivery of 18.8 MWh sits on IPP — battery storage (BESS) (Generator) so the balancing market has a real action to price.
| Party | Final sched (MWh) | Metered (MWh) | Imbalance (MWh) | Imb. price (R/MWh) | Amount |
|---|---|---|---|---|---|
| IPP — battery storage (BESS) (Generator) | 1321.5 | 1302.7 | -18.8 | R2000.00 | R-37533.33 |
Implied under-delivery penalty: SMP × 1.15 or an R2 000/MWh floor, whichever is higher. The floor binds when the SMP is below R1 739,13/MWh. Illustrative, basis pending NERSA (Trading Rules R2 §07 placeholder).
Commit this balancing run to the append-only SHA-256 chain
(balancing_complete event).
Full IDM + balancing transcript
[reclearIntraday] day=2026-05-29 hour=17 seed=42 [reclearIntraday] slip party=agg_renewables_01 -14.2% dam=180000 revised=154527 gap+=25473 [reclearIntraday] slip party=gen_ipp_solar_bw5_01 -8.3% dam=47400 revised=43444 gap+=3956 [reclearIntraday] slip party=gen_ipp_wind_01 -8.9% dam=90840 revised=82741 gap+=8099 [reclearIntraday] residual_gap=37528 backfilled=37528 uncovered=0 idm_smp=109195c backfill_awards=1 — BALANCING — [computeBalancing] day=2026-05-29 hour=17 [computeBalancing] party=gen_bess_ipp_01 sched=79288 metered=78162 imb=-1126 price=200000c amount=-3753333c [computeBalancing] net_system_imbalance=-1126 balancing_price=200000c