Rural schools in Malawi often face challenges in maintaining stable electricity supply due to unreliable grid connections and high maintenance costs. A mixed-methods approach combining surveys with case studies was employed to gather data from schools receiving various renewable energy grants. Quantitative analysis focused on reliability metrics post-grant deployment. Schools that received solar panel grants showed an average increase of 20% in electricity supply durability compared to those without such support, highlighting the significant role of solar technology in improving service continuity. Renewable energy grants have a substantial positive impact on enhancing school electricity sustainability in rural Malawi. Solar panels are identified as particularly effective for this purpose. Investment in renewable energy initiatives should be prioritised to ensure long-term educational infrastructure improvements, with solar technology serving as a key component of such investments.