Capacity optimization between Estonia - Latvia

Ingrid Arus

Electricity Market Development ManagerElering OÜ

Capacity optimization designed model for SESAM

Instead of one bidding area, four bidding areas are implemented

Imports and exports from Latvia and imports from Russia Capacity auctioned in implicit way for importers and exporters Curtailment leads to pro-rata cut in bid volumes automatically In pro-rata curtailment, the larger the bidded quantity is, the more volume the bids get as compared to bids with smaller quantities

Capacity optimization designed model for SESAM

As EIC issuing authority, EIC codes must be appointedfor these areas by Elering Elering must send capacities to SESAM for the ESTLINK import/export areas using these EIC codes Flows resulting from the price calculation will bereported by ETSO ESS scheduling XML messages. Flowsare reported between ESTLINK and the 3 import/exportAreas Importers and exporters of electricity must also beappointed EIC codes by Elering EIC codes are per party/area and not per tradingaccount

Capacity optimization designed model for SESAM

Capacity Optimization method

NPS SESAM

Imp < XB max (import)Exp < XB max (export)

All cross-border import and export bids are accepted for spot-price calculation

Bid- cutting until Imp = XB max (import) and

Exp = XB max (export)Accepted cross-border bids

for spot-price calculation

Cross-border bids(NPS)

Cross-border capacity limits for PX Trade(XB max)

Bids to PX Trade

YES

NO

THANK YOU!

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