Malawi Launches First Utility-Scale Battery Storage System

Malawi has commissioned its first standalone utility-scale battery energy storage system, marking a significant step in efforts to strengthen one of the world’s least-electrified power systems.

Located at the Kanengo substation in the capital, Lilongwe, the facility has a power capacity of 20 megawatts and an energy storage capacity of 40 megawatt-hours. This means it can deliver its full rated output for approximately two hours.

The system will capture electricity when solar generation is high, or demand is relatively low, and release it when the grid requires additional supply. It can also respond rapidly to changes in electricity production and consumption, helping the Electricity Supply Corporation of Malawi, known as ESCOM, maintain grid frequency, voltage and overall system stability.

The project was implemented by ESCOM in partnership with the Global Energy Alliance for People and Planet. It received USD 20 million in catalytic grant financing from the alliance, which also provided technical support. The organisation estimates that the facility could avoid more than 10,000 tonnes of carbon dioxide emissions annually, partly by reducing the need for diesel-powered backup generation.

Addressing Persistent Electricity Shortages

Malawi’s electricity network has historically struggled with limited generation capacity, grid instability and frequent power cuts. The country is also heavily dependent on hydropower, leaving its electricity supply exposed to droughts, flooding and other climate-related disruptions.

Hydropower plants located along the Shire River provide most of Malawi’s domestically generated electricity. However, changes in rainfall and river flows can significantly affect their output. Cyclone Freddy, which struck southern Africa in 2023, damaged major energy infrastructure and demonstrated the vulnerability of the country’s power system to extreme weather.

Malawi currently has approximately 580 MW of installed generation capacity, including around 100 MW of solar power. Battery storage can help the country use more of this solar capacity by absorbing surplus electricity that might otherwise be curtailed and supplying it after solar production declines.

According to the Global Energy Alliance for People and Planet, the Kanengo installation could help unlock around 100 MW of existing renewable generation that has previously been constrained by limitations in the electricity network. The battery can react almost instantly to changes in grid conditions, providing a level of operational flexibility that conventional power plants may not be able to deliver as quickly.

ESCOM expects the project to reduce average daily power outages from approximately four hours to less than two hours. The utility has also said that the strengthened grid could support connections for an additional 600,000 households, although expanding access will also require continued investment in transmission lines, distribution networks and local connections.

Supporting Malawi’s Electrification Target

Electricity access in Malawi has improved in recent years but remains low by international standards. The World Bank reported in May 2026 that 25.9% of the population had access to electricity, up from 11% in 2019.

Only 11.3% of the population was connected through the national grid, while 14.6% received electricity through off-grid technologies such as solar home systems. The difference between urban and rural communities remains substantial. Around 56.5% of urban households have grid electricity, compared with just 3.8% of rural households.

The Malawian government aims to increase national electricity access to 70% by 2030. Achieving that target is expected to require approximately 1.2 million additional grid connections and 1.6 million off-grid connections, alongside investments in new generation capacity and a more reliable electricity network.

Battery storage alone will not directly connect households that remain beyond the reach of transmission and distribution infrastructure. However, improving the reliability of the existing grid is essential if new customers are to receive consistent electricity after they are connected.

More reliable power could also reduce the need for businesses, hospitals and other institutions to operate private diesel generators. Diesel backup systems are expensive to run, expose users to volatile fuel prices and create local air pollution as well as greenhouse gas emissions.

For small businesses, fewer outages could support longer operating hours and more dependable use of equipment such as refrigeration units, welding machinery, pumps and communications systems. Hospitals and schools may also benefit from improved power quality and fewer interruptions to essential services.

Further Battery Projects Planned

The Kanengo installation is intended to be the first stage of a broader battery storage programme. Malawi plans to develop three additional storage facilities with a combined power capacity of 60 MW in other urban areas.

Successful operation of the first system will provide practical information about battery performance, maintenance requirements, safety standards and integration with the national grid. These lessons could help ESCOM prepare future projects and give potential investors greater confidence in Malawi’s energy storage market.

The project also illustrates how grant financing can support clean energy infrastructure in markets where utilities face limited access to affordable capital. Battery systems require substantial upfront investment, while many of their benefits, including avoided outages, reduced curtailment and improved grid stability, are not always directly reflected in electricity tariffs.

Public and philanthropic funding can help reduce early-stage risks, but larger deployments will require sustainable operating models, clear procurement rules and regulatory arrangements that recognise the different services batteries provide.

The launch of the Kanengo facility therefore represents more than the addition of 20 MW to Malawi’s power system. It is an early test of whether battery storage can improve reliability, support solar expansion and increase resilience in a country where electricity shortages remain a major constraint on public services and economic development.

Source: www.reuters.com