Kenton School College Solar Water Heating System
Design and installation of an automated electrical control system for a 4,000-litre solar water heating installation at Kenton School College, Kileleshwa.
Year
2024
2024
Location
Location
Kileleshwa, Nairobi
Kileleshwa, Nairobi
Capacity
Capacity
18kW Dual Heating Element System
18kW Dual Heating Element System
INTRODUCTION
This project involved the design and installation of a robust electrical control system for a large-scale solar water heating installation at Kenton School College, Kileleshwa. The system manages two 9kW three-phase heating elements, two circulation pumps, and dual controllers — all integrated into a 4,000-litre storage capacity system. This setup delivers a reliable, fully automated, and energy-efficient hot water supply engineered specifically for the high-demand requirements of a busy educational institution.
DESIGNING METHOD
Hybrid Solar-Electric System Engineering
The engineering phase focused on safety, load balancing, and the precise synchronization of solar-electric hybrid components across a high-capacity institutional system. Key engineering considerations included: Hybrid Integration — developing control logic that prioritizes solar gain as the primary heat source, while intelligently activating the 18kW total electrical heating capacity (2 × 9kW elements) as a reliable backup during low-irradiance periods, ensuring uninterrupted hot water supply year-round. Load & Flow Management — designing circuits to handle the simultaneous operational demand of both heating elements and the dual circulation pumps without overload or imbalance. Safety Protocols — implementing thermal cut-offs, over-current protection, and safety interlocks throughout the system to meet institutional safety standards and protect both equipment and occupants.
SYSTEM INTEGRATION
Automated Control System Integration
System integration centred on delivering a fully automated, set-and-forget experience for the institution's facilities team. The integration included: Dual Controller Configuration — programming two independent controllers to manage the heating elements and pumps in coordination, ensuring the system responds intelligently to solar availability and demand patterns throughout the day. Thermal Management — integrating temperature monitoring across the 4,000-litre storage system to prevent overheating, optimize heat retention, and extend the lifespan of all system components. Operational Reliability — the completed system runs autonomously with minimal manual intervention required, providing consistently available hot water across the college's facilities while significantly reducing the institution's dependence on grid energy for water heating.
Project Impacts
4,000-Litre Hot Water Storage Capacity
4,000-Litre Hot Water Storage Capacity
Fully Automated Solar-Electric Hybrid Control
Fully Automated Solar-Electric Hybrid Control
18kW Dual Heating Element System
18kW Dual Heating Element System
Dual Circulation Pump System Commissioned
Dual Circulation Pump System Commissioned
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Kenton School College Solar Water Heating System
Design and installation of an automated electrical control system for a 4,000-litre solar water heating installation at Kenton School College, Kileleshwa.
Year
2024
2024
Location
Location
Kileleshwa, Nairobi
Kileleshwa, Nairobi
Capacity
Capacity
18kW Dual Heating Element System
18kW Dual Heating Element System
INTRODUCTION
This project involved the design and installation of a robust electrical control system for a large-scale solar water heating installation at Kenton School College, Kileleshwa. The system manages two 9kW three-phase heating elements, two circulation pumps, and dual controllers — all integrated into a 4,000-litre storage capacity system. This setup delivers a reliable, fully automated, and energy-efficient hot water supply engineered specifically for the high-demand requirements of a busy educational institution.
DESIGNING METHOD
Hybrid Solar-Electric System Engineering
The engineering phase focused on safety, load balancing, and the precise synchronization of solar-electric hybrid components across a high-capacity institutional system. Key engineering considerations included: Hybrid Integration — developing control logic that prioritizes solar gain as the primary heat source, while intelligently activating the 18kW total electrical heating capacity (2 × 9kW elements) as a reliable backup during low-irradiance periods, ensuring uninterrupted hot water supply year-round. Load & Flow Management — designing circuits to handle the simultaneous operational demand of both heating elements and the dual circulation pumps without overload or imbalance. Safety Protocols — implementing thermal cut-offs, over-current protection, and safety interlocks throughout the system to meet institutional safety standards and protect both equipment and occupants.
SYSTEM INTEGRATION
Automated Control System Integration
System integration centred on delivering a fully automated, set-and-forget experience for the institution's facilities team. The integration included: Dual Controller Configuration — programming two independent controllers to manage the heating elements and pumps in coordination, ensuring the system responds intelligently to solar availability and demand patterns throughout the day. Thermal Management — integrating temperature monitoring across the 4,000-litre storage system to prevent overheating, optimize heat retention, and extend the lifespan of all system components. Operational Reliability — the completed system runs autonomously with minimal manual intervention required, providing consistently available hot water across the college's facilities while significantly reducing the institution's dependence on grid energy for water heating.
Project Impacts
4,000-Litre Hot Water Storage Capacity
4,000-Litre Hot Water Storage Capacity
Fully Automated Solar-Electric Hybrid Control
Fully Automated Solar-Electric Hybrid Control
18kW Dual Heating Element System
18kW Dual Heating Element System
Dual Circulation Pump System Commissioned
Dual Circulation Pump System Commissioned
Featured Projects