Cornerstone Sustainability
Renewable energy & energy transition platform
Cornerstone Sustainability is the renewable energy arm of The Cornerstone Group, dedicated to expanding access to reliable, affordable, and clean energy across Africa. The division designs, deploys, and operates solar generator systems, advanced energy storage solutions, and intelligent energy management platforms tailored to the operational realities of emerging markets.
With a strong operational presence in The Gambia and expanding activities in Senegal and Gabon, Cornerstone Sustainability addresses critical electrification gaps affecting households, healthcare facilities, agricultural operations, public institutions, and commercial users. The division prioritizes scalable, modular solutions that deliver immediate impact while supporting long-term energy resilience and carbon reduction objectives.
Market context and strategic rationale
Across Sub-Saharan Africa, more than 600 million people remain without reliable access to electricity, with many communities relying on costly and polluting diesel generation or inefficient biomass solutions. Energy insecurity constrains economic productivity, limits healthcare delivery, restricts educational outcomes, and increases environmental degradation.
Cornerstone Sustainability responds to this challenge by deploying decentralized renewable energy systems that reduce operating costs, stabilize power availability, and improve service continuity for critical infrastructure and productive sectors.
Core Service Lines
Solar power systems
Design, engineering, installation, and maintenance of grid-tied, off-grid, and hybrid photovoltaic systems for residential, commercial, agricultural, and institutional clients.
Energy storage solutions
Deployment of advanced lithium-ion battery systems enabling load balancing, peak shaving, backup power, and system scalability for diverse operational environments.
Smart energy & digital monitoring
Integration of IoT-enabled monitoring platforms, remote diagnostics, and performance optimization tools to enhance system reliability, efficiency, and lifecycle management.s
Advisory, training & capacity building
Technical advisory services, project feasibility studies, system optimization, and local workforce training programs to strengthen long-term operational sustainability.
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Technology & innovation
The division utilizes high-efficiency solar modules, long-life lithium battery architectures, intelligent inverters, and smart-grid technologies to maximize system uptime and performance. Digital monitoring platforms enable predictive maintenance, real-time analytics, and proactive asset management, reducing downtime and extending system life.
Flagship references
Cornerstone Sustainability has supported the solarization of critical public infrastructure, including the installation of a solar energy system valued at over USD 50,000 for the Edward Francis Small Teaching Hospital, the main national referral hospital in The Gambia. Additional deployments include solar systems for offices, agricultural facilities, and community installations, with ongoing expansion into Senegal and Gabon.
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Growth strategy
The division continues to scale through partnerships with public institutions, agricultural operators, healthcare networks, and development programs. Future growth priorities include decentralized rural electrification, productive-use energy solutions, solar leasing models, and hybrid energy systems aligned with national energy transition strategies.