Malaysia’s renewable energy transition is being shaped by two competing forces. The country wants to reduce its dependence on coal and natural gas, but its electricity requirements continue to grow as manufacturing expands, transport becomes more electrified and large data centres connect to the grid. Renewable capacity must therefore do more than replace existing fossil generation. It must also meet new demand without weakening the reliability of an electricity system that supports one of Southeast Asia’s most industrialised economies.
Hydropower currently provides most of Malaysia’s renewable generating capacity, especially in Sarawak, but solar power has become the main source of new development. National policy now combines utility-scale solar parks, rooftop installations, corporate power-purchasing schemes, bioenergy projects and grid investment. The transition is no longer centred only on adding renewable power plants. It increasingly depends on whether Malaysia can reform its electricity market, strengthen transmission networks and give major consumers reliable access to low-carbon electricity.
Solar Power Becomes Malaysia’s Main Route to Renewable Growth
Malaysia’s location near the equator gives it consistent solar resources throughout the year. Conditions vary with cloud cover and the monsoon seasons, but solar photovoltaic systems can be installed across the country without depending on a limited number of high-resource regions. Rooftops, reservoirs, former industrial sites and agricultural land all offer possible locations.
Solar accounted for approximately 2.3 gigawatts of Malaysia’s renewable capacity in 2024, compared with more than 6.2 gigawatts of hydropower. Although hydro remained much larger, solar was expanding more quickly and represented the most practical technology for reaching future capacity targets.
The Large Scale Solar programme has been the central mechanism for building utility-scale projects. Competitive procurement has allowed developers to propose large solar farms that sell power into the electricity system under long-term arrangements. Successive bidding rounds have increased project size and attracted domestic and international investment.
Distributed solar has developed through Net Energy Metering and self-consumption programmes. Homes and businesses can install panels to reduce the amount of electricity they purchase from the grid, while eligible users may receive credit for surplus generation. Commercial and industrial rooftops are particularly important because they provide large areas close to existing electricity demand.
Floating solar is also becoming more relevant. Malaysia has reservoirs associated with hydropower schemes and water infrastructure, allowing panels to be installed without competing directly for agricultural or development land. Floating projects can use existing transmission connections where they are located near power facilities, although engineering costs and environmental conditions must be managed.
Solar development will ultimately be limited less by resource availability than by grid capacity, project execution and the ability to balance production after sunset.
Hydropower Gives Sarawak a Different Energy Transition
Malaysia does not operate as one completely unified electricity market. Peninsular Malaysia, Sabah and Sarawak have separate systems, different generation resources and different development priorities. This regional division is particularly important for renewable energy.
Sarawak has extensive hydropower capacity supported by large river systems and reservoirs. Its hydroelectric stations supply electricity to cities, industrial facilities and energy-intensive operations. This gives Sarawak a lower-carbon electricity profile than Peninsular Malaysia, where coal and natural gas remain central to power generation.
Hydropower has helped Sarawak attract industries that require large volumes of relatively stable electricity, including metals processing. Unlike solar, a reservoir-based hydroelectric plant can often adjust its output in response to changes in demand. This flexibility may become more valuable as variable solar generation increases elsewhere in the system.
Large dams also create substantial land-use, ecological and community impacts. Future hydroelectric development must account for forest loss, river changes, resettlement and the rights of communities in affected areas. These factors make it unlikely that large hydropower alone can deliver Malaysia’s national renewable expansion.
Sabah faces a different position. Its power system has experienced tighter supply conditions and weaker infrastructure than the larger Peninsular grid. Solar, small hydropower and local generation can improve supply, but new capacity must be supported by transmission and distribution investment. Renewable projects in remote areas provide limited value when the network cannot transfer their electricity to the places where it is needed.
Corporate Electricity Demand Is Changing the Market
Malaysia’s industrial position has made renewable electricity a competitiveness issue as well as an environmental objective. Manufacturers that export to international markets increasingly face carbon-reporting requirements from customers, lenders and regulators. Technology companies and data-centre operators also want access to electricity that can support their own emissions targets.
Traditional renewable programmes allowed companies to buy green electricity products or enter virtual arrangements with project developers. The Corporate Renewable Energy Supply Scheme goes further by allowing eligible businesses to procure electricity directly from renewable generators through the Peninsular grid. This introduces a more open-access model in which the network transports power between a developer and a corporate consumer.
The scheme could provide renewable developers with long-term commercial customers outside the conventional utility procurement process. It may also allow companies to secure a clearer relationship between their electricity use and a particular renewable project.
Implementation will depend on network charges, contract structures, connection availability and the financial strength of the participating companies. Renewable electricity still moves through the same physical grid, so corporate procurement cannot bypass the need for transmission upgrades or system balancing.
Malaysia has also begun using Energy Exchange Malaysia to support cross-border renewable electricity trade. Initial exports to Singapore demonstrate how Malaysia could participate in a more connected Southeast Asian electricity market. Regional trade may create a new source of demand for renewable generation, but domestic supply, affordability and grid reliability will remain national priorities.
The Grid Is Becoming the Decisive Constraint
Malaysia’s historical electricity infrastructure was designed around large coal, gas and hydropower stations with predictable production patterns. A system with much more solar generation behaves differently. Output rises during daylight hours, falls quickly in the evening and changes with weather conditions.
Transmission upgrades will be required to connect new renewable zones and move electricity from areas with available land to urban and industrial centres. Distribution networks must also adapt to electricity flowing from thousands of rooftop systems rather than only from central power stations.
Battery storage is becoming an important part of this programme. Grid-scale batteries can absorb excess solar electricity, release power during periods of higher demand and provide services that help maintain frequency and voltage. Malaysia has placed more than one gigawatt of storage development within its wider transition plans, although project delivery, market rules and cost recovery will determine how quickly this capacity becomes operational.
Gas-fired generation is likely to retain an important balancing role during the transition. Malaysia’s strategy is not based on replacing every conventional plant immediately. It is based on increasing renewable capacity while maintaining enough flexible generation and network support to keep the system reliable.
Demand growth makes this task more difficult. Data-centre expansion, industrial development, electric vehicles and wider electrification can absorb part of the renewable capacity being added. Malaysia may install large amounts of solar while seeing a more gradual reduction in fossil-fuel generation if total electricity consumption continues to rise.
Palm Oil Creates Both a Bioenergy Resource and an Execution Problem
Malaysia’s agricultural and processing industries generate large quantities of organic material. Palm oil mills produce empty fruit bunches, fibres, shells and liquid effluent that can be used to generate electricity, heat or biogas. Landfills, livestock operations and other agricultural businesses provide additional bioenergy resources.
Bioenergy offers advantages that solar does not. Fuel can be stored, and generation can be scheduled rather than depending directly on sunlight. Projects may also reduce methane emissions and waste-disposal problems.
Commercial development has nevertheless been uneven. Feedstock may already have other uses, transport costs can become high, and small facilities may be located far from suitable grid connections. Project developers also face financing, fuel-supply and operational risks that do not apply in the same way to solar farms.
Malaysia’s feed-in tariff has supported biomass, biogas and small hydropower projects, but policy attention has increasingly shifted toward improving project completion rather than simply awarding capacity. Bioenergy is likely to remain a supporting part of the renewable mix rather than the main source of expansion.
Malaysia’s Renewable Targets Depend on Market and Network Reform
Malaysia’s National Energy Transition Roadmap aims for renewable sources to account for 40% of installed electricity capacity by 2035 and 70% by 2050. Solar is expected to provide most of the long-term increase, while hydropower and bioenergy retain smaller but strategically important roles.
Reaching those targets requires more than successive rounds of solar procurement. Malaysia must coordinate planning across its separate regional power systems, increase storage, reinforce transmission infrastructure and develop market arrangements that attract private capital without transferring excessive costs to consumers.
The country has strong advantages: an established electrical industry, experienced utilities, a major manufacturing base and growing corporate demand for green power. The central test is whether renewable deployment can move as quickly as electricity demand. If grid and market reforms keep pace, Malaysia can turn solar expansion into a broader restructuring of its power sector rather than an additional layer on top of continued fossil-fuel growth.
