en.Wedoany.com Reported - The Karowe Diamond Mine in Botswana plans to build a 30-megawatt solar power plant to address energy cost volatility and supply risks. Mine owner Lucara Botswana has launched a tender seeking experienced independent power producers to participate in the project.
Located in central Botswana, about 20 kilometers from the small town of Letlhakane, the Karowe Mine is renowned for producing large, high-quality Type IIA diamonds. The mine is undergoing an underground expansion, aiming to extend its operational life to 2040. Currently, the mine relies on a hybrid power supply from the national grid and diesel generators. For operations planning deep excavation and long-term production, fluctuations in diesel costs and continuous increases in grid electricity prices pose financial risks.
The proposed solar power plant will cover 20 to 30 hectares within the mine site. The project will be built in two phases: Phase 1 involves a 20 MWp grid-connected photovoltaic system; Phase 2 can add 10 MWp of solar capacity, along with a 20 MW battery energy storage system (BESS), bringing total solar capacity to 30 MWp. The commercial operation target is set for 2027 or 2028, aligning with the progress of underground deepening works. The hybrid configuration of solar, storage, and grid backup helps mitigate the impact of power outages or supply disruptions on production.
The business case for promoting solar energy is primarily based on three points. First, solar power supported by a long-term power purchase agreement (PPA) can lock in more predictable energy costs, which is crucial for financial models simulating decades of mine life. Second, underground mining is sensitive to power interruptions, and solar plus storage can reduce production variables. Additionally, reducing diesel consumption helps meet sustainability requirements from investors, insurers, and offtake partners. Capital risk is transferred to the developer through the PPA structure.
This Expression of Interest (EOI) solicitation targets qualified independent power producers (IPPs) with experience in utility-scale solar projects exceeding 20 MW. Applicants must submit audited financial statements for the past three years, tax clearance certificates, project records, and details of funding methods, along with commitments to local content and community development. The deadline for submitting questions is July 3, 2026, and complete EOI submissions must be delivered to the Karowe Mine office in Letlhakane by July 10, 2026. Shortlisted candidates will proceed to the Request for Proposal (RFP) stage, where PPA terms and technical specifications will be finalized.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
