Powering Grid Stability: ACES Renewables’ Soroti BESS Project in Uganda

ACES Renewables is progressing the development of its first utility-scale project in Uganda, marking an important step in the company’s expansion across East Africa. Known as the Soroti 50MWh Battery Energy Storage System (BESS), the project is designed to support Uganda’s renewable energy ambitions by strengthening grid stability and enabling greater integration of clean energy sources.

The primary objective of the Soroti BESS project is to assist Uganda in increasing its available renewable energy capacity while improving the reliability of the national electricity network. By combining solar generation with large-scale battery storage, the project will play a critical role in managing intermittency and supporting consistent power supply across the grid.

The project has a planned installed capacity of 25MWp of solar photovoltaic generation, delivering 20MWac, alongside a 50MWh battery energy storage system. The inclusion of battery storage allows excess energy to be stored and dispatched when needed, contributing to grid balancing and reducing the frequency of power disruptions.

Strategic Location in Eastern Uganda

The Soroti 50MWh BESS project will be located in the Amuria District in the Eastern Region of Uganda, near the town of Soroti. The site is situated approximately five kilometres from the Opuyo 132kV Substation, providing direct access to existing transmission infrastructure and enabling efficient grid connection.

Several factors informed the site selection process. Preliminary environmental impact assessment studies indicate that the area has low environmental sensitivity and minimal anticipated ecological impact. The project is expected to have a positive influence on surrounding communities through employment opportunities and infrastructure development. Confirmed demand for renewable energy and energy storage solutions further supports the viability of the chosen location.

Regulatory Framework and Partnerships

ACES Renewables is working closely with Uganda’s key energy authorities to advance the project. The Electricity Regulatory Authority (ERA) is involved in its capacity as the national energy regulator, overseeing compliance and regulatory approvals. The Uganda Electricity Transmission Company Limited (UETCL), as the national system operator, plays a central role in grid integration, system operation, and the finalisation of grid connection agreements.

A draft Power Purchase Agreement has already been established with UETCL, featuring an approved tariff. The PPA is structured as a 20-year renewable agreement and includes take-or-pay provisions as well as grid support services. These features reinforce revenue certainty and highlight the strategic role of the project within Uganda’s electricity system.

Development Progress and Timeline

The Soroti project has reached several important development milestones. Completed activities include prefeasibility studies, energy resource assessments, land acquisition, preliminary engineering designs, and the securing of a permit from UETCL to proceed with development activities. An offtake Letter of Intent has also been issued by UETCL, reflecting strong institutional support for the project.

Key outstanding steps include the completion of permits and the finalisation of grid connection agreements following detailed Grid Impact Studies. Financial close, construction, and commissioning are targeted for November 2026, subject to the successful completion of these remaining approvals.

Technology and Engineering Approach

All major equipment for the project will be sourced from tier-one manufacturers. The solar component will utilise 610W bifacial monocrystalline N-type PV modules mounted on a single-axis tracker system to optimise energy yield. The battery storage system will consist of containerised lithium iron technology, selected for its safety profile, efficiency, and suitability for grid-scale applications.

An Engineering, Procurement and Construction contractor will be appointed during the next phase of development to deliver the project in line with international standards.

Economic, Social and Environmental Impact

The project is expected to create approximately 500 direct and indirect jobs during construction and operation, with a strong emphasis on engaging local contractors and suppliers. Community development and corporate social responsibility initiatives are planned as part of ACES Renewables’ broader commitment to responsible development.

An Environmental and Social Impact Assessment is currently underway to identify and manage potential environmental and social risks. Detailed mitigation measures will be implemented in line with regulatory requirements and international best practice.

Strategic Importance for ACES Renewables

The Soroti 50MWh BESS project represents ACES Renewables’ first investment in Uganda and aligns with our mandate to develop, own, and operate Independent Power Producer projects across Africa. It also supports our commitment to advancing a just energy transition beyond South Africa.

As a dollar-denominated project, it contributes to revenue stability and long-term shareholder value. Successfully delivering a project of this scale in Uganda will strengthen ACES Renewables’ regional presence, build long-term partnerships with local stakeholders, and establish a strong foundation for future developments in East Africa.

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ACES Renewables is a premier provider of renewable energy solutions across Africa. With over 15 years of experience, we are driving the continent’s energy transition through innovative and sustainable clean energy solutions.

Our expertise spans end-to-end project execution, including engineering, procurement, and construction (EPC), energy optimisation, and advanced storage solutions. With a proven track record and strong local partnerships, ACES Renewables delivers scalable projects that address Africa’s growing energy needs while promoting environmental sustainability and economic growth.

By consistently demonstrating the success and impact of our projects, ACES Renewables is attracting forward-thinking investors eager to participate in Africa’s energy future, creating jobs, uplifting the local communities, improving health and cleaning the environment.  Our strategic vision and commitment to excellence position us as a trusted partner for those seeking to contribute to a cleaner, greener, and more prosperous continent.

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