As locals await relocation and environmentalists raise concerns over impacts on the Mekong’s ecology, the future of the planned Phou Ngoy dam (also called Lat Sua) looks uncertain, "The Third Pole" reports. The run-of-river-dam is planned on the Mekong River in Champasak Province in Laos, about 18 km downstream from Pakse. The project for producing 728 Megawatt of electricity has been developped by Charoen Energy and Water Asia Corporation of Thailand (CEWA) and the South Korean construction companies Doosan Heavy Industries and Construction and Korea Western Power. The dam structure would be 1,300 meters long and 27 meters high with a head of 10.6 meters.
Visualisation of the Phou Ngoy Hydropower Project by CEWA
How many villages along the Mekong are affected?
The US $2.4-billion dollar project would impact more than 200 hectares of land and 88 villages, 57 villages above the dam and 31 below. The most-affected village would be Ban Khonken fishing village, where 811 residents reside in 142 households. They have been told that they will have to relocate for the construction works.
Is there an impact on Vat Phou Unescco World Heritage site?
An official at the Lao Ministry of the Information, Culture and Tourism said according to rfa.org he was worried about the dam’s impact on Vat Phou, a Khmer Hindu temple complex about six kilometers (3.7 miles) from the Mekong River. “If the Lao government and the Phou Ngoy Dam developer really want to build this dam, they’ll have to do the Heritage Impact Assessment, similar to the one for the Luang Prabang Dam Project that has been submitted to UNESCO,” he said.
Is Phou Ngoy Hydropower project economically feasable?
There are doubts, as "The Third Pole" reported in Dezember. Yongpil Seo, country director of the Thai office of Doosan Enerbility, one of the Korean partners, said he thought it was “unlikely” the Korean partners would continue with the project, adding he believed CEWA is currently looking for lower-cost Chinese partners and is struggling to find investment. No power-purchase agreement (PPA) with the Thai state enterprise Electricity Generating Authority of Thailand (EGAT) seems in sight.
Another interruption of the free flow of Mekong river and the way for its fish population; more than 1200 families are forced to move their homes and income resources, and the earthquake risk for the historic town of Unesco-protected Luang Prabang is rising: The construction of a highly controversial hydropower project in Laos has begun. The energy shall be delivered to Thailand.
The development cost of the 1,460-Megawatt facility is estimated at U.S. $ 3 billions. The run-of-the-river dam is planned about 25 kilometers upstream from Luang Prabang, at Houygno village according to the website of Mekong River Commission, located by the upstream Pak Beng hydropower project and the downstream Xayaburi project. The energy will be produced by 7 turbines or generators, each delivering 200 Megawatt. See this introduction video:
Who is behind the Luang Prabang hydropower project?
The Luang Prabang Power Company Limited (LPCL), a company established by Lao PDR and PetroVietnam Power Corporation, is the project developer, finances it and will operate it. In late 2020 an ownership change occurred with the stock ownership of Luang Prabang Power Company Limited changed to the following: PT Sole Co., Ltd. 38 percent; Petro Vietnam Power Corporation 10 percent; CK Power Public Company 42 percent and CH. Karnchang Public Company Limited 10 percent. CK Power Plc (CKP) is the power generation arm of the Thai construction firm CH Karnchang Plc, which built the Xayaburi Dam. So a Thai company is the major shareholder . in July 2021 LPCL signed the Concession Agreement of
the LPHPP with the Government of the Lao PDR, for a concession period of 35 years. LPCL has signed a tariff Memorandum of Understanding with the Electricity Generating Authority of Thailand (EGAT). EGAT shall be the off-taker of all electricity generated by the Luang Prabang hydropower plant from the scheduled Commercial Operation Date (January 1, 2030).
What happens tro the people living around the dam area?
More than 1,200 families in Oudomxay province will be forced to move to make way for the project. The dam will flood a dozen villages on the bank of the Mekong River in Nga district, including Lath Han, Khok Phou, Yoiyai and Phonsavang. Also residents of Houei Yor village, Chomphet district, in Luang Prabang province are affected. Residents of Nga district in Oudomxay province and Chomphet district in Luang Prabang province say authorities are shortchanging them for the land and other property they would lose. Oudomxay officials offered 100 million kip (U.S. $8,500) per hectare of farmland to locals, said a Nga district resident.
What happens to the historic town of Luang Prabang and ist famous temples - a UNESCO World Heritage Site?
Unesco has demanded a Heritage Impact Assessment, because there were concerns. Dams will encircle Luang Prabang’s urban area. " I can see a nightmare scenario where dam operators aren’t talking to each other, a massive weather event pours through northern Laos and sudden dam releases from these dams cause an unnecessary flooding event around Luang Prabang,” said Brian Eyler, director of the Stimson Center’s Southeast Asia programme. “The Xayaburi dam would act like a plug in the bathtub, not allowing the water out to the downstream if its flood responses weren’t ready for those sudden upstream releases. It’s a complicated but possible scenario.” The Luang Prabang dam would be the first in the Lower Mekong Basin to encounter water discharged from the 11 mainstream Chinese dams, including the massive 5,850 MW Nuozhadu dam. Upstreams of Luang Prabang the Mekong also merges with the Nam Ou, a river with a cascade of seven hydropower dams built by PowerChina.
By signing the World Heritage Convention, countries pledge “not to take any deliberate measures which might directly or indirectly damage the natural and cultural heritage” of a site and to “ensure the protection and conservation of their Outstanding Universal Value and other heritage values.”
The dam will be built in an earthquake-prone zone. “We are very worried about the seismic fault only 8.6 kilometers from the Luang Prabang dam site,” said leading Thai seismologist Punya Churasiri. “It is too dangerous to go ahead with this project.”
How is the progress of the construction works so far?
อัปเดต 2023, โครงการก่อสร้างเขื่อนหลวงพระบาง ห่างจากมรดกโลกหลวงพระบาง ประมาณ 25 กม. **โดยทุนไทย** - Update 2023, Construction work has begun on the Luang Prabang hydropower dam on the Mekong River in Laos.#เขื่อนหลวงพระบาง#แม่น้ำโขงpic.twitter.com/o4QkhN5Q6y
In March 2021 Xinhua reported that the preparatory work was already 80 per cent complete. Among the work was the construction of an 11-km access road, a 500-metre bridge over the Mekong River, three temporary ports, as well as some transmission lines and a small electricity station. Bangkok Tribune shows pictures of the construction progress.
What could stop the construction of Luang Prabang hydropower plant?
The dam has been criticised by environmental groups and the government in Thailand, which will feel the effects on its Mekong border with Laos and beyond. “Surely effects for Thailand include fish loss, the fluctuations of dams cutting the river ecology, the unnatural water flow and the sediment loss until the water becomes blue,” said Niwat Roykaew of Thailand’s Chiang Khong Conservation Group, adding that it will impact fishing communities. Thailand’s authorities have received pressure from environmental groups to not purchase power from the Luang Prabang dam and other projects. But: "Environmental and heritage reviews are unlikely to stop the
Lao government forging ahead with its hydroelectric plans", wrote Milton Osborne.
Updated informations about Luang Prabng hydropower plant you can find on Hobomaps.
