Lombeta Secondary School- 19.8 kWp Hybrid Solar power System

Client: Lombeta Secondary School / Location: Marangu, Kilimanjaro / Year: 2026

St. John Paul II Lombeta Secondary School has successfully enhanced its energy infrastructure with the installation of a 19.8 kWp hybrid solar PV system complemented by 42.9 kWh of battery energy storage.
The system was designed to reduce the school’s dependence on grid electricity, lower operating costs, and provide a reliable power supply for classrooms, administration, dormitories and other essential facilities.
Following the successful installation and commissioning of the system, the school now operates 100% on the installed solar power system, enabling uninterrupted learning activities while benefiting from clean, sustainable, and cost-effective energy that supports its long-term development goals.

Technical Specifications
  • Solar PV Array: 19.8 kWp

  • Inverter Capacity: 15 kW

  • Battery Storage Bank: 42.9 kWh

Key Features & Design Strategy

    • High-Yield Solar Harvesting By pairing a 19.8 kWp solar array with a 15 kW inverter, we utilized strategic DC oversizing. This ensures the system reaches peak generation earlier in the morning and sustains it later into the afternoon, maximizing solar capture even during overcast days in the Kilimanjaro region.

    • Extensive Energy Autonomy With a massive 42 kWh battery bank, the school is equipped with significant energy reserves. This storage capacity easily bridges consecutive rainy days and comfortably powers evening prep classes, security lighting, and staff housing overnight.

    • Intelligent Power Management The central 15 kW inverter acts as the brain of the system, seamlessly prioritizing immediate solar power for daytime school activities, directing surplus energy to top off the batteries, and automatically switching to stored power when night falls.

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