FAQs

The transmission connection policy, approved by the CER, is that generators pay a shallow connection charge. In other words generators pay for all of the cost of construction of the physical connection to the transmission system, but not any additional deep system reinforcement costs. Demand customers are also subject to a shallow connection policy, but pay for 50% of the cost of construction of the physical connection.

The transmission use of system (TUoS) tariffs for generators and customers are approved by the CER. Generation TUoS charges are applied on the basis of the generator’s capacity and are site specific, differing according to the location of the generator. Demand customers are charged on a mixture of capacity and energy use, with the tariffs depending on whether they are connected to the transmission system or the distribution system, the latter of which is divided into two tariff categories depending on consumption.

For more information on tariffs, please see the Transmission Regulated Revenues and Tariffs section of our website.

Parties requiring connection to the transmission system must apply to EirGrid, the transmission operator, for a Connection Offer. EirGrid operates a standard process for providing Connection Offers to parties seeking connection to the transmission system. The connection offer process for generators and demand customers is available to view on the EirGrid website.

The CER recently approved EirGrid’s revised form of Connection Agreement. In order to make the new Connection Agreement more user-friendly, it has been restructured into three parts, namely the Connection Agreement (contains the more specific provisions in respect of connecting both generation and demand customers), the General Conditions (contains the general provisions of the Connection Agreement) and Schedule 10 (contains construction and commissioning provisions). All documents are available on EirGrid’s website.