SSE PLC, through its subsidiary Scottish and Southern Electricity Networks Transmission, has completed and energized the Caithness-Moray electricity transmission link in Scotland.

The 1,200-MW high-voltage, direct-current transmission line was completed on time and within budget, SSE said in a Jan. 11 company news release.

Constructed in four years, the project transmits power through a 113-km cable under the Moray Firth seabed between new converter stations at Spittal in Caithness and Blackhillock in Moray.

Total expense for the project is estimated to be £970 million, against an allowance of £1.06 billion.

The transmission line has already connected turbines from the Beatrice offshore wind facility and Dorenell onshore wind farm to the national grid. Onshore wind farms in Caithness and Ross-shire are expected to be linked to the grid through the transmission line in coming months.