Ancillary Services & Other System Charges
AS & Other System Charges
A number of payments and charges are paid/levied outside the Single Electricity Market by the Transmission System Operators, EirGrid and SONI. Most of these are related to Ancillary Services costs for services necessary for the secure operation and restoration of the electricity system and also Other System Charges which are intended to incentivise optimum performance of generators connected to ensure efficient use of the power system. On the 1st February 2010, harmonised all-island arrangements were brought into operation for both Ancillary Services and Other System Charges.
For any Ancillary Services settlement and billing queries please email ASQueries@eirgrid.com. For any general Ancillary Services related queries please contact our Customer Relations Team on 01 702 6642 or email AS@eirgrid.com.
|
Ancillary Services & Other System Charges Report |
Effective Date |
|---|---|
| 2011 2012 Tariff Year Report | 21-05-12 |
| 2010 2011 Tarriff Year Report | Sept 11 |
|
Ancillary Services & Other System Charges Documentation | Effective Date |
|---|---|
| AS and OSC Example Calculator | 01-10-10 |
| Overview of harmonised AS & Other System Charges | 01-02-10 |
|
Consultations | Effective Date |
|---|---|
| AS Rates Consultation | 03-04-12 |
| OSC Rates Consultation | 03-04-12 |
| AS Agreement and Reactive Power Clarification Note | 13-12-10 |
| Secondary Fuel Consultation | 07-04-10 |
| AS Harmonisation Project | 01-07-06 |
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Further Information | Effective Date |
|---|---|
| 2011 2012 Harmonised Ancillary Service Statement of Payments and Charges | 01-10-11 |
| AS Agreement and Reactive Power Clarification Note | 13-12-10 |
| FAQs for Harmonised AS | 09-07-10 |
| Reactive Power Characteristic Curve Table | 11-06-10 |
| HAS Reactive Power for Wind Farms | 11-06-10 |
| Harmonised AS Agreement (EirGrid Version) | 01-02-10 |
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Archive | |
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| Archive | |
The AS and Other System Charges arrangements were developed on an all island basis. The arrangements were subject of four industry consultations. All relevant documentation can be found at the AS Harmonisation Project subsite.