Beyond the 1.25 GW Storage Mandate: How Malaysia’s Solar Expansion and Corporate PPAs Are Reshaping the BESS Market

Malaysia’s solar-storage policies and corporate renewable energy procurement schemes are creating new opportunities for battery energy storage developers. However, project economics, grid access charges and commercial arrangements will play a critical role in determining how quickly these opportunities translate into actual deployments.

Malaysia is strengthening its renewable energy framework through two major initiatives: the Large Scale Solar (LSS6) programme and the Corporate Renewable Energy Supply Scheme (CRESS). Together, these mechanisms are expected to support the country's solar expansion while creating additional demand for battery energy storage systems (BESS).

Under LSS6, Malaysia has introduced its first large-scale solar tender with mandatory battery storage requirements. The programme targets approximately 2,650 MW of solar capacity and 1,250 MW of battery storage across three development packages.

The largest package covers 2,200 MW of solar PV paired with 1,100 MW of battery storage and is open to qualified developers. A second package allocates 300 MW of solar capacity and 150 MW of storage to eligible Bumiputera developers. The third package covers 150 MW of standalone solar capacity without a mandatory storage component.

The structure creates opportunities not only for established BESS suppliers but also for solar developers seeking technology partners, engineering contractors and system integrators to meet the new requirements.

CRESS Creates Another Route for Storage Deployment

Alongside LSS6, CRESS is emerging as another important mechanism for Malaysia's renewable energy market. The scheme allows corporate electricity buyers to procure renewable power directly from generators through the national grid, creating opportunities for long-term corporate power purchase agreements (PPAs).

However, the commercial attractiveness of these arrangements depends partly on the System Access Charge (SAC), which covers the use of the electricity grid.

Current SAC rates stand at RM0.20/kWh for firm power and RM0.40/kWh for non-firm power. The difference highlights the importance of supply reliability and delivery arrangements when developers structure renewable energy projects and negotiate corporate PPAs.

For solar developers, battery storage can help improve supply flexibility and support firm power delivery. However, the additional investment and operating costs of BESS must be carefully evaluated against the potential commercial benefits.

Standalone Storage Projects Strengthen Market Momentum

Malaysia's standalone storage market is also gaining momentum through the Malaysia Battery Energy Storage System (MyBeST) programme.

The initiative selected four projects, each with a capacity of 100 MW/400 MWh, bringing the total planned capacity to 400 MW/1,600 MWh. These projects are being developed at strategic locations across Peninsular Malaysia and are entering the construction phase.

The combination of utility-scale solar-plus-storage tenders, corporate renewable procurement and standalone BESS projects is creating multiple entry points for international battery manufacturers, project developers and technology providers.

Commercial Viability Remains the Key Challenge

Despite the positive policy outlook, developers need to look beyond announced capacity targets when assessing Malaysia's storage market.

Project eligibility, grid connection arrangements, storage performance requirements, financing conditions and revenue structures will all influence project bankability. In particular, developers must consider how storage-related costs are recovered and whether corporate PPA arrangements provide sufficient commercial incentives for battery deployment.

As Malaysia continues to expand its renewable energy capacity, the ability to develop commercially viable projects will become increasingly important. For BESS suppliers and investors, understanding the details of LSS6, CRESS and MyBeST will be essential to identifying sustainable opportunities in the country's evolving energy storage market.