Interconnectors

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What are interconnectors?

Interconnectors are high-voltage cables that run under the sea, underground or via overhead cabling that connect the electricity systems of neighbouring countries to one another. Interconnectors allow excess power on the system to be traded and shared between countries. By sharing excess power, we can ensure renewable energy isn’t wasted, and constraint payments are minimised.

Future of Interconnectors

Below, you can find an interconnector analysis report that outlines the socio-economic benefits of interconnection for consumers, generators, and interconnector developers under a range of scenarios. Rather than assessing actual projects this report evaluates the benefits from hypothetical interconnectors. 

This analysis can provide a market and network assessment of the optimal mix of interconnection capacity. It evaluates the overall benefit to society by considering socio-economic welfare (SEW), as well as constraint costs, capital expenditure (Capex) and environmental impacts. 

The analysis does not assess the viability of current or future interconnector projects; the final insights are based on assessing a range of theoretical interconnector options.

Interconnector Analysis Report

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FAQ Session

Here we have compiled answers to some of the most common queries we receive.
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Network Assessment Options for Interconnectors

NOA for Interconnectors identifies how much interconnection capacity would provide benefit to consumers and other interested parties.
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Offshore Hybrid Assets

An Offshore Hybrid Asset (OHA) integrates the network infrastructure for offshore wind generation with an interconnector.
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Publications and Resource Hub

This page is a go-to resource for different work, articles, reports, and more.
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Revenue generation for interconnectors

Congestion income refers to the financial gains generated by the difference in electricity prices between interconnected markets or regions.
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What is an NTC?

NTC is a value used by System Operators (SOs) in order to set the maximum capacity that an interconnector can import and/or export to that SO’s grid for a given Market Time Unit.