In brief
On 9 November 2026, Colombo authorities announced the launch of a 26‑km, 220‑kV transmission line costing roughly 7.5 million USD to link the 100‑MW Mannar wind farm to the national grid. The domestically financed project, featuring a double‑circuit line, is intended to improve grid stability and support further renewable integration. Sources agree on the details but do not provide dates for completion or potential operational challenges.
On Sunday, 9 November 2026, Sri Lanka began construction of a domestically funded, 26‑km transmission line that will connect the newly built 100‑MW Mannar wind farm to the national grid. The line will operate at 220‑kV and comprise a double‑circuit configuration that links the Mannar 220/33‑kV grid substation to the proposed Mullikulam 220‑kV metering substation.
The Department of Government Information announced the project will cost 2.5 billion Sri Lankan rupees, or approximately 7.5 million U.S. dollars. The publicly‑funded line will therefore be financed entirely through domestic resources, according to Xinhua and the Australian‑based eLanka news outlet.
Both outlets note that the primary objective of the line is to transmit electricity generated by the new wind farm directly to the national grid. The Department of Government Information said that the project “is intended to ... help improve the stability of the country's power system.” Officials have also stated that the line “will support the integration of more renewable energy into the national electricity system.”
Contextually, the Mannar wind farm itself is a 100‑MW development that represents the fifth large‑scale wind project on Sri Lanka's smaller southern island. While the on‑site generation capacity is not mentioned in the sources beyond the nominal 100 MW, the strategic placement of the transmission line reflects a broader national effort to phase in renewable sources across the grid.
The commissioning of the 26‑km line follows a series of domestic‑infrastructure projects aimed at reducing Sri Lanka's import dependence and expanding renewable capacity. Over the last few years, the country has rolled out additional electrification initiatives, but this is the first explicitly domestically financed transmission line directly linked to a renewable sub‑project.
Both Xinhua and eLanka confirm that construction has already started, and that the project is expected to begin operation once the wind farm is productive. The CounterPoint outlet stated that the project launch occurred on 8 November 2026, a day before the public release by Xinhua, but did not provide additional details beyond the date and nature of the line.
In summary, Sri Lanka has opened a domestically funded, 26‑km, 220‑kV double‑circuit transmission line to connect its 100‑MW Mannar wind farm to the national grid, with the stated aim of improving grid stability and supporting renewable integration. No source has mentioned any specific uncertainties regarding the project's timeline, technical challenges, or potential future capacity constraints, so the current public record reports an unqualified commitment to the initiative.
