Balancing · hour 20 · 2026-05-29
Stage status timestamp (balancing complete): 2026-05-29T21:50:00Z
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 8.1 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) | 1402.1 | 1394.0 | -8.1 | R2000.00 | R-16200.00 |
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=20 seed=42 [reclearIntraday] slip party=agg_renewables_01 -4.7% dam=180000 revised=171601 gap+=8399 [reclearIntraday] slip party=gen_ipp_wind_01 -7.0% dam=112080 revised=104271 gap+=7809 [reclearIntraday] residual_gap=16208 backfilled=16208 uncovered=0 idm_smp=108833c backfill_awards=1 — BALANCING — [computeBalancing] day=2026-05-29 hour=20 [computeBalancing] party=gen_bess_ipp_01 sched=84128 metered=83642 imb=-486 price=200000c amount=-1620000c [computeBalancing] net_system_imbalance=-486 balancing_price=200000c