Vietnam has already demonstrated how quickly a renewable energy market can expand when policy, private capital and strong natural resources align. Solar farms and rooftop systems appeared across the country at exceptional speed, while wind development followed along the central and southern coasts. By 2024, wind and solar represented more than one-quarter of Vietnam’s installed generating capacity and produced approximately 13% of its electricity.[1]
The next stage will be more difficult. Vietnam must now convert a large collection of renewable assets into a dependable power system capable of supporting factories, cities and rising household demand. That requires stronger transmission lines, energy storage, clearer investment rules and a better balance between projects and the regions where electricity is consumed.
Vietnam’s Solar Boom Arrived Before the Grid Was Ready
Solar power transformed Vietnam’s electricity sector within only a few years. Feed-in tariffs introduced during the late 2010s created a powerful incentive for developers to finish projects before fixed-price deadlines. Utility-scale solar farms were concentrated in sunny provinces such as Ninh Thuan and Binh Thuan, while rooftop systems spread across homes, factories and commercial buildings.
This expansion made Vietnam Southeast Asia’s leading solar market. It also exposed a major weakness in the country’s planning process. Solar projects could be developed faster than transmission infrastructure could be approved and constructed. In several renewable-rich provinces, new generating capacity exceeded the ability of local substations and power lines to move electricity to major demand centers.
The result was congestion and curtailment. Some solar and wind facilities were technically available but could not deliver all their output because the network lacked sufficient capacity. Vietnam therefore had renewable electricity that could be produced, but not always transmitted or sold.[2]
This experience is changing the country’s approach. Future development is expected to place greater emphasis on grid availability, project location and on-site consumption. Revised Power Development Plan VIII, approved in April 2025, encourages rooftop solar at homes, factories, industrial parks and commercial buildings, particularly where the electricity can be consumed at the same location. This model reduces pressure on the national grid because power does not need to travel long distances.
Large centralized solar projects will face stronger integration requirements. Under the revised plan, new utility-scale solar developments are expected to include battery storage equal to at least 10% of project capacity for two hours. This signals a transition from building the greatest possible volume of solar panels to developing projects that can support the wider electricity system.[3]
Wind Power Offers the Next Large Expansion Opportunity
Vietnam’s long coastline gives it some of Asia’s strongest wind resources. Existing wind development has focused mainly on onshore and nearshore projects in the south-central provinces, the Central Highlands and parts of the Mekong Delta. These projects complement solar because wind generation can occur during different hours and weather conditions.
The revised power plan sets a 2030 target of approximately 26.1 to 38 gigawatts of onshore and nearshore wind capacity. Reaching even the lower end of this range would require a major acceleration in project approvals, grid construction and equipment deployment.[3]
Offshore wind represents a larger but more complicated opportunity. Vietnam has extensive areas of relatively shallow coastal water close to large population centers and industrial regions. These conditions could support projects at a scale that is difficult to achieve on land. Offshore wind could also create demand for port services, steel structures, foundations, electrical equipment, specialized vessels and engineering work.
Vietnam’s plan calls for roughly 6 to 17 gigawatts of offshore wind serving domestic electricity demand during the 2030–2035 period, with much greater capacity envisioned by 2050.[3] The World Bank has identified offshore wind as a major strategic resource but has also stressed that development will require large amounts of private capital and a clearer legal and commercial framework.[4]
The main obstacles are no longer wind quality or technical potential. Investors need predictable rules for seabed surveys, site allocation, project bidding, electricity pricing and grid connection. Large projects also require power purchase agreements that international lenders consider bankable. Without these conditions, offshore wind targets may remain planning figures rather than operating capacity.
The first successful commercial projects will therefore matter beyond their individual output. They will establish regulatory procedures, supply-chain expectations and financing models for the wider industry.
Hydropower Remains Essential but Cannot Carry the Transition Alone
Hydropower remains one of Vietnam’s most important renewable electricity sources. Large reservoirs and smaller hydroelectric plants provide generation as well as valuable flexibility. Unlike solar and wind facilities, some hydropower stations can increase or reduce output in response to changes in electricity demand.
This flexibility will become more valuable as variable renewable capacity grows. Hydroelectric facilities can help balance the system when clouds reduce solar output or when wind conditions change. Pumped-storage hydropower can provide an additional service by using electricity during periods of low demand to move water into an upper reservoir and releasing it later when the system needs more power.
The revised power plan targets between 2.4 and 6 gigawatts of pumped-storage capacity by 2030. Battery storage is expected to reach approximately 10 to 16.3 gigawatts over the same period.[3] These technologies are becoming central parts of Vietnam’s renewable strategy rather than optional additions.
However, hydropower production is exposed to rainfall conditions, drought and competing demands for water. Lower hydroelectric output can force the electricity system to rely more heavily on coal and other thermal generation during dry periods. New dam construction can also affect forests, river systems, agriculture and local communities.
Vietnam is therefore more likely to improve and selectively expand its existing hydroelectric system than to reproduce the large hydropower development cycle of previous decades. Modern turbines, reservoir coordination, pumped storage and better forecasting may provide more value than an unrestricted wave of new dams.
Biomass and Waste Power Fit Vietnam’s Agricultural Economy
Solar, wind and hydropower dominate Vietnam’s renewable energy discussion, but biomass has a distinct national role. The country’s agricultural and food-processing sectors produce rice husks, sugarcane bagasse, wood residues and other materials that can be used for electricity and industrial heat.
Biomass projects can provide steadier output than solar and wind because fuel can be stored and used when required. They can also reduce agricultural waste and supply power to processing facilities located outside major cities. Combined heat and power systems are particularly relevant for sugar mills, paper producers, food processors and wood-product manufacturers.
The revised power plan anticipates approximately 1.5 to 2.7 gigawatts of biomass generation and 1.4 to 2.1 gigawatts of electricity from waste and solid-waste facilities by 2030.[3]
The quality of individual projects will be important. Biomass plants need reliable fuel supplies, controlled emissions and responsible sourcing. Transporting low-density agricultural residues over long distances can quickly reduce a project’s economic and environmental value. The strongest projects are likely to be located close to concentrated sources of usable waste.
Manufacturing Demand Is Reshaping the Renewable Market
Vietnam’s position as a manufacturing and export center gives renewable energy an economic importance that extends beyond electricity generation. Electronics, clothing, footwear, consumer goods and other export industries increasingly face pressure to reduce emissions across their supply chains. Large manufacturers want access to renewable electricity so they can meet corporate climate targets and customer requirements.
Vietnam’s direct power purchase framework allows qualifying large consumers to contract with renewable generators through private transmission lines or arrangements using the national grid. The framework was introduced in 2024 and updated under Decree 57 in 2025.[5]
Direct power purchase agreements could create a new source of demand for renewable projects. Instead of relying only on a standard contract with the state electricity system, developers may be able to secure long-term agreements with industrial customers. Manufacturers, in turn, can obtain more credible access to clean power.
The model will depend on workable grid charges, settlement rules and contract terms. Companies need confidence that renewable electricity claims can be measured and verified, while generators need predictable revenue. Successful implementation could help Vietnam retain foreign investment as global companies place greater value on the emissions associated with manufacturing locations.
Power Development Plan VIII Sets Scale, but Delivery Will Decide the Outcome
Vietnam’s revised Power Development Plan VIII significantly increases the planned role of renewable energy. By 2030, it envisions approximately 46.5 to 73.4 gigawatts of solar capacity, 26.1 to 38 gigawatts of onshore and nearshore wind, substantial energy storage and the beginning of commercial offshore wind development.[3]
These targets reflect the scale of Vietnam’s electricity challenge. Demand is expected to rise rapidly as the economy grows, manufacturing expands, air-conditioning use increases and transport and industry become more electrified. The International Energy Agency has estimated that electricity demand could double by 2030 under the country’s power development pathway.[6]
Renewable energy must therefore do more than replace existing fossil-fuel generation. It must also satisfy a large share of new demand.
The decisive issue will be coordination. Generation projects, transmission lines, storage facilities and electricity-market reforms must progress together. Vietnam’s first renewable expansion showed that investment incentives can mobilize capacity very quickly. It also showed that capacity alone does not guarantee usable electricity.
Vietnam now has the resources, industrial demand and policy ambition to become a much larger renewable energy market. Its progress will depend on whether grid investment and commercial reform can advance at the same pace as the country’s solar, wind and storage targets.
