
Sephu plant will serve as an addition to the 180 kW grid-connected ground-mounted solar photovoltaic power station in Rubesa (near ), which became operational in October 2021. The Sephu plant is currently under construction over an area of 65 acres in Yongtru village, situated in the . Upon its completion, the overall installed capacity of the facility will reach 22.38 megawatts and is expected to be complete by March 2025. It was initially planned a. [pdf]
The Chairperson of the National Council of Bhutan, Lyonpo Tashi Dorji, inaugurated the 180kW grid-tied ground mounted Solar Photo-Voltaic Power Plant at Rubesa, Wangdue Phodrang on October 4, 2021.
The commissioning and inauguration of the 180kW grid-tied ground mounted solar photo-voltaic power plant marks the start of Bhutan’s investment in grid-tied solar energy as a viable alternative energy source in the face of soaring domestic demand and climate change.
Minister of Energy and Natural Resources, Loknath Sharma said, “Sephu solar plant is the first medium solar farm in the country.” The minister said that Sephu solar plant marked the beginning of achieving a 500-megawatt energy target through solar power in the next three years. He said that the plant project is undertaken by the ministry.
When Shingkhar solar power plant was dropped the ADB couldn’t fund the wind farm as it became economically non-viable. As per the Renewable Energy Management Master Plan 2016, it is estimated that Bhutan has the potential to produce 12 gigawatts of solar and 760 megawatts of wind energy.

The Sunergise 6 MW IPP Solar Generation Systems is a photovoltaic power plant in Kolovai, Tongatapu, Tonga. It is the largest photovoltaic power plant in South Pacific. . The between Sunergise New Zealand and Tonga Power Limited with the support of was signed on 21 March 2019. The power plant was commissioned by . The power plant has an installed capacity of 6.9 MWp, making it the largest photovoltaic power plant in south . It consists of three interconnected 2.3 MWp ground-mounted solar arrays. . • [pdf]
Producing energy since August this year, and providing power for up to 10,336 households, the Solar Farm is helping The Government of Tonga pursue its National Energy Roadmap plans to see up to 70% of Tongatapu’s electricity generation sourced from renewables by the end of 2025.
Tongan King Tupou VI at the official opening of the biggest solar power plant in the South Pacific. Photo / Sunergise Tongan Prime Minister Hu’akavameiliku Siaosi Sovaleni, who was also at the launch, said the plant indicates the need for independent power - like solar energy - to achieve their National Energy Roadmap.
Renewables like solar are a significant means for Tonga to expand energy access, stabilize power grids as well as reduce pollution. Considering the shortage of solar expertise and finances for countries like Togan, the role of independent power producers and the practice of PPA provide solid support to smooth the way for solar deployment.
The Sunergise Tongatapu Solar Farm is the largest in the South Pacific. It was built as part of a power purchase agreement between Sunergise New Zealand Limited, a Todd Corporation solar company and Tonga Power Limited, with support from the Asian Development Bank.
As Hu'akavameiliku, Prime Minister of Tonga said at the ceremony: "The successful completion of the Sunergise's 6MW Independent Power Producer solar generation system today, demonstrates the major role renewable energy independent power producers play towards achieving our 70% target by [the] end of [the] year 2025."
This solar project was completed under the partnership between Sunergise New Zealand Limited and Tonga Power Limited with support from the Asian Development Bank (ADB). Sunergise led the construction and meanwhile united local Tongan civil, mechanical and electrical sub-contractors to the team.
We are deeply committed to excellence in all our endeavors.
Since we maintain control over our products, our customers can be assured of nothing but the best quality at all times.