Transmission Use of System Charges
Transmission Use of System Charges
Transmission Use of System (TUoS) is the provision of access to the transmission network to transfer energy for trade within the market. Customers may incur these charges when importing from the system for their consumption (Demand TUoS) or when exporting to the system (Generation TUoS) or may be subject to charges for both importing and exporting when generation and demand exist on the same premise.
Transmission Use of System (TUoS) charges comprises two parts:
(a) Network Charges: for the use of the transmission system infrastructure in the Republic of Ireland for the transportation of electricity.
(b) System Services Charges: the costs arising from the operation and security of the transmission system. EirGrid pays the costs of Ancillary Services to the providers of such services and also pays constraints costs and costs associated with the settlement system. Users pay EirGrid a System Services Charge in respect of these costs.
Transmission Use of System charges are grouped into three tariff categories:
- Demand Transmission Service (DTS)
- Generation Transmission Service (GTS)
- Autoproducer Transmission Service (ATS)
For further details on these charges please refer to the latest ‘Statement of Charges’ document below.
| Use of System Documents - 2012/2013 | Effective Date |
|---|---|
| 2012-2013 Statement of Charges (18 12 12) - v2.0 | 18-12-12 |
All-Island Generator TUoS Consultation
On 29th September 2011 the CER and the Utility Regulator of Northern Ireland decided on the implementation of all-island Generator TUoS.
Further information on this decision is available on the All-Island Project website or throught he link below
Generator Transmission Use of System Charging Decision
Harmonised all-island arrangements
On the 1st February 2010, harmonised all-island arrangements were brought into operation for both Ancillary Services and Other System Charges. The Other System Charges Rates and Parameters are included in the Statement of Charges above, however further details on both Ancillary Services and Other System Charges can be found in the Ancillary Services section of this website.
MIC Administration Paper
The MIC Administration Paper outlines the policy for dealing with requested MIC changes for customers connected to the transmission system receiving transmission service via the DTS-T tariff schedule i.e. Directly Connected Transmission Demand Customers.
It is extremely important that an applicant applying for a demand connection accurately determines and specifies the MIC required. System reinforcements will be designed to facilitate this MIC. If the MIC is changed during construction or after connection work is completed a minimum notice period applies.
Please note that there will be an updated MIC Administration paper published shortly.
Archive TUoS Charges Documentation
- TUoS Statement of Charges
- Explanatory Papers
- Generator Testing Charges
- Indictive Generator TUoS Tariffs
- Demand TUoS Charges Calculators