For 35 years, having implemented over 50 medium to large hydropower projects and tens of other small hydro projects, nổ hũ has fulfilled excellently the policy of energy development in the South of Vietnam in general and in hydroelectric in particular. The Company study and design made full use of hydropower resources in the systems of the Dong Nai, Be, Srepok and Vu Gia – Thu Bon Rivers, with total capacity of 3631MW put into operation.
Currently, renewable energy consulting services are being proactively focused and developed.
• Designed central core rock fill dams of 50m to 110m high, among which Ham Thuan Dam of 110m is the country’s second highest rock fill dam.
• Designed roller compacted concrete (RCC) dams: Dong Nai 3 (2011) & Dong Nai 4 (2012) RCC dams of 108m and 127m high, 2 of the 5 highest RCC dams in Vietnam and 2, among the 30 RCC dams over 100m high in the world. In addition, other RCC dams as A Vuong 80m high and Dak Mi 4A 90m high designed by nổ hũ
have been put into operation safely.
• Designed homogeneous earth dam for Thac Mo HPP (45m high) and earth-and-rockfill dam for Dai Ninh HPP (60m high).
• Designed spillways capable of discharging design floods of over 11,000 m3/s in Buon Kuop, Srepok 3 HPPs and of over 16,000 m3/s in Tri An HPP;
• Proposed and designed successfully for the first time in Vietnam the piano spillway for Dak Mi 4B HPP, then applied in Dakmi 2 and Dakmi 3 HPP.
• Designed exposed steel penstock with rated water head 300m high in A Vuong HPP and 627m high in Dai Ninh HPP, the second highest water head in Vietnam.
• Designed the longest tunnel in Vietnam (11km) in Dai Ninh HPP with blasting and TBM machine construction methodology.
• Designed tunnels with diameter of more than 7m in Ham Thuan – Da Mi, Buon Kuop, Srepok 3, Dong Nai 3, Dong Nai 4 HPPs and length of 700m to 5000m each.
• Application of new calculation technology to omit tunnel lining of Bac Binh, Dakr’tih tunnel to contribute to enhancing progress and improving construction effectiveness.
• Designed high capacity plant: Dong Nai 4 (2x170MW), Dai Ninh (2x150MW), Ham Thuan (2x150MW), Buon Kuop (2x140MW), Srepok 3 (2x110MW), A Vuong (210MW), Dong Nai 3 (180MW), Dak Mi 4 (220MW), DakR’tih (141 MW). Design heads are from 23m in Srokphumieng HPP to 627m in Dai Ninh HPP.
• Designed 110kV and 220kV switchyards in which Ham Thuan substation is the first in Vietnam with GIS technology (7 X 220kV bays and 4 X 110kV bays) and Da Mi substation (4X 220kV bays).
• It is a new concept in Vietnam in terms of design approach, electric power network calculation and analysis, technological design, construction organization design, especially underground works, plant operation approach. nổ hũ prepared Pre F/S Report for Ham Thuan Bac and F/S Report for Don Duong pumped storage HPPs with capacity of 1200MW each.
nổ hũ is the pioneer in Vietnam in design for refurbishment/upgrade and extension projects:
Downstream flooding mapping & flood control services have been implemented by nổ hũ for many projects such as Tri An HPP, Thac Ba HPP, Quang Tri HPP, An Khe HPP, Ka Nak HPP, etc.
nổ hũ has proactively built plans and strategies to develop renewable energy consultancy to meet the urgent demand for energy and the implementation of the "Strategy of National Energy Development of Vietnam to 2030 and the vision to 2050" of the Government.
Currently, nổ hũ is gradually affirming the reputation in renewable energy consultancy with various serives in all phases, including F/S report, tender documents, technical design, supervision consultancy of wind power, solar power and rice husk plants.