Does eSett certify settlement software?

No. eSett publishes the Nordic Imbalance Settlement Handbook and the NBS specifications; any system that reports and receives data according to them can be used.

When must bilateral trades be reported?

Before the first gate closure, 45 minutes before the imbalance settlement period in Sweden and Norway; corrections are possible until the second gate at 24:00 on the next working day after the delivery day.

How does eSett deliver settlement results?

As data packages you subscribe to in the Online Service, through the Information Service API, or by email notification. Invoices and collateral requirements appear in the Online Service on Mondays by 13:00 CE(S)T.

What is different in Sweden?

Profiled consumption. In Sweden, eSett calculates reconciled energy at BRP level from the DSOs' load profile shares and invoices it, on top of the Nordic model.

Knowledge

What does eSett expect from a BRP's systems? Settlement data, NBS reporting and the Online Service

Short answer: eSett prescribes data, not products. The Nordic Imbalance Settlement Handbook and the NBS business requirement specifications on ediel.org define what a BRP reports and receives: bilateral trades before the gate closures, confirmation reports, settlement results as data packages, and invoices and collateral requirements every Monday. Any software works that speaks that XML over one of eSett's channels and lets you compare eSett's settlement with your own position.

Last updated: 5 October 2026 Author: Rainer Notter, Product Director at Engrate.

What eSett is

eSett Oy, owned by the Nordic transmission system operators, performs the imbalance settlement for Denmark, Finland, Norway and Sweden under one model. Its daily work is collecting, validating and managing settlement data, making it available to market participants, running the preliminary imbalance settlement, following up on reported data and performing the final settlement. Weekly, it invoices the imbalance and other fees on behalf of the TSOs and controls the collateral of BRPs and BSPs. How you become a BRP is in how to become a BRP in Sweden.

What a BRP reports

Bilateral trades. Either BRP, or both, can report a trade. eSett matches every time a trade is received and sends both BRPs an intermediate confirmation report (iCNF) with the matched value and the difference between the reported values. The first gate closure is 45 minutes before the imbalance settlement period in Sweden and Norway, 20 minutes in Denmark and at the start of the period in Finland. The second gate closure is at 24:00 on the next working day after the delivery day. Periods that match get a final confirmation report (fCNF) right after the first gate; for the others, a BRP can accept the counterparty's values.
Structures. Your settlement structures must be in eSett's system before data is accepted. Changes in Sweden are notified to Svenska kraftnät, which maintains them with eSett.

What a BRP receives

Metering data and settlement results. The DSOs report aggregated metered data per metering grid area, BRP and retailer: for a delivery day at the latest on the second day after it, with updates until the thirteenth day at 00:00. eSett runs a preliminary settlement daily and the final settlement when the update window has closed. Results come as data packages: eSett defines their content and schedule, lists them in the Online Service, and you subscribe to the ones you need.
Invoices and collateral. Invoices and updated collateral requirements are published in the Online Service on Mondays by 13:00 CE(S)T. Additional collateral is due the same day. Debit amounts are drawn from the settlement account two days after the invoicing day, on Wednesday.

The channels

eSett supports ECP/EDX, SMTP, SFTP and web services over HTTPS. There are three ways to get data: data packages ordered in the Online Service, the Information Service, a SOAP API with XML payloads that eSett is moving to REST, and the Online Service itself with email notifications. Reporting follows the NBS Handbook; the message structures are in the NBS business requirement specifications and the XML implementation guides, based on ENTSO-E and ebIX standards, which the Nordic Market Expert Group maintains on ediel.org.

Sweden's own layer

In Sweden, eSett also calculates and reports reconciled energy for profiled consumption, settled at BRP level, and invoices it. The DSOs report load profile shares per metering grid area and BRP with the UTILTS E31 message, with updated data before the end of the second month after the delivery month; eSett calculates the reconciled energy per BRP per metering grid area. The handbook describes the model in its appendix on Swedish profiling and reconciliation; the details sit in the Elmarknadshandbok.

What the software must do

Build and send bilateral trade reports before the first gate, read the iCNF and fCNF reports and resolve mismatches before the second gate.
Subscribe to and parse the data packages: preliminary and final settlement, imbalance per settlement period, prices and fees.
Compare eSett's imbalance with your own position from trades, plans and metering, and flag deviations before the final settlement.
Read Monday's invoices and collateral requirements and reconcile them with your settlement account.
Keep the structures current when regulation objects, retailers or metering grid areas change.
Run on one of eSett's channels, with certificates and acknowledgements handled.

How Engrate does it

Engrate is built in Stockholm and live for BRPs in Germany and the Netherlands, where it exchanges the TSOs' messages and settlement data through one API. For Sweden and eSett, talk to us. More on the product: Energy Market Communication.