Ecofys estimates 50-80 GW of new interconnectivity needed for North ..
23 november 2017
News
Ecofys estimates 50-80 GW of new interconnectivity needed for North Seas energy infrastructure
Published: 23/11/2017
Ecofys, a Navigant company, has identified a 2045 minimum offshore interconnection level of 50 to 80 GW for the discussed energy infrastructure in the North Seas. In a study for TenneT and Energinet.dk, Ecofys calculated the installed offshore wind capacity needed from the North Seas region to reach the COP21 targets as well as the related levels of offshore interconnection to ensure reliable operation of the system.
Assuming offshore wind as the dominant power generation source for Northwestern Europe by 2045, the scenario highlights the increased need for flexibility to cope with higher shares of variable renewable generation. The experts estimate the share of dispatchable electricity generation capacity in the system will decrease from 64% today to 25% in 2045.
For the high-level interconnectivity assessment of the region, Ecofys looked at the three subsystems of Great Britain and Ireland, continental Northwest Europe and the Nordic countries. The 50-80 GW of offshore interconnections between these subsystems could pool generation and flexibility resources from across regions to avoid loss-of-load under stressed power system conditions.
While the need for more interconnection can be clearly described, the incentives to enable these investments will require new methodologies to value grid stability. The study recommends updating cost-benefit analysis methodologies and regulatory measures to incentivise interconnector capacity and maintain operational security.
Tell a friend