Overview
The Nam Houng 1 Hydropower Project is located on the Nam Houng River in Xayaburi Province, Lao PDR — approximately 12 km southeast of Xayaburi town, upstream from the confluence of the Nam Houng and the Mekong River. The Nam Houng is the principal river flowing through the provincial capital of Xayaburi, making this project central to the region’s energy landscape.
The project was completed and is currently operating under a concession agreement with the Government of Lao PDR, with electricity supplied to Electricité Du Laos (EDL). In March 2024, Alpha Divisions Public Company Limited (ALPHAX) agreed to acquire Nam Houng 1 Hydropower Limited, with ownership transferred to Alpha Power Development (Laos) Company Limited (APDL), a subsidiary of Alpha Power Development Company Limited. The project is now proudly owned and operated by APDL, further strengthening the company’s expanding portfolio of sustainable hydropower assets across Lao PDR.
Characteristics of Dam
Installation
15MW
Annual energy
86.10 GWh
Total storage
16.72 MCM at FSL: 272 masl
Average inflow
34.45 m³/s
PPA
Electricite Du Laos (EDL)
HPP type
Run-off River
Characteristics of Technical
Reservior type
Run-Off River
Maximum height
34.17 m
Powerhouse type
Underground
Connect point
Thana Station
Switchyard type
AIS
Transmission Line Type
Double Circuit
Company Address
- Nam Houng 1 Hydropower Sole Company Limited
- Pak Houng Village, Xayaburi District, Xayaburi Province, Lao P.D.R.
Contact
- Email: info@alphalaos.com
- Tel: +856 (21) 453611, 453612





COMPANY ADDRESS
- Alpha Power Development Laos Sole Company Limited
- SMG Building, Kampheng Muang Road (T4), Phonthan Village, Xaysettha District, Vientiane Capital, Lao P.D.R.
CONTACT
- Email: info@alphalaos.com
- Tel: +856 (21) 453611, 453612
© Alpha Power Development Lao Sole Company Limited. All rights reserved