Researchers at University College Dublin (UCD) claim that a fully connected “Pan-EU” energy transmission system can reduce energy costs by 32pc compared to the continent’s current “business as usual” approach.

The team from UCD’s energy institute said derestricting EU power flows will allow the locations of renewable energy generation to be optimised, which would significantly decrease the total installed capacity.

While this scenario proposes an increase in transmission capacity, the study claimed that the costs are “insignificant” when compared to the cost savings in generation investment.

The study was commissioned by technology company SuperNode, which is headquartered at NovaUCD and designs superconducting systems to connect renewable energy grids. The team evaluated the Europe’s transmission system capabilities based on the SuperNode Energy Scenario for Europe 2050.

“The existing transmission system is not fit for purpose for Europe’s energy future,” study lead Prof Andrew Keane said. “The shortcomings of the current transmission system have been known for years but were tolerated. The imperative to keep the lights on and the requirements of the energy transition make it clear that a more advanced approach to transmission is required.”

The study also looked at an “unconstrained scenario”, which is an interconnected European grid with less constraints than the pan-EU model. The study claimed the unconstrained model could reduce costs by 48pc compared to the current model.

The study said Europe will face challenges with load shedding (temporary interruptions to electricity deliver), generation curtailment and excessively high emissions without an accelerated investment in infrastructure.

“Large scale transmission projects are known to take over 10 years to complete,” The team said in the study. ”Planning for future interconnection to facilitate larger power flows needs to begin as soon as possible to coincide with the increasing levels of renewables in the system.”

Supernode market and policy analyst Marcos Byrne said Ireland and Europe’s grid challenges will “only worsen” as more renewables are added unless a new mindset in grid development is taken.

“This reinforces SuperNode’s belief in the need for new transmission technologies to reduce energy costs and we are confident that the superconductive transmission systems SuperNode is developing will be a key enabler of Europe’s energy transition,” Byrne added.

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