House on the Rock, the Refuge is one of the leading Christian organization in the Northern region. On relocating her activities to the massive beautifully constructed multipurpose facility by the city gate, the rising cost of electricity to power daily operations of the organization became a concern to the leadership and in 2014 serious discussions regarding alternative power source began and this culminated in the signing of an EPC contract with Protergia Nigeria Ltd, a leading Renewable energy company and project developer for the development of a 100KWp to power the daily operation of the organization.


Project Timeline & Facts      

Signing of EPC Contract                        –        March 2016.

Project Delivery                                        –        March 2017

Solar Panels Rating                                  –        315Wp

Number of Panels                                     –        303 Panels

Generation                                                 –        100KWp

Annual Power generation                   –        146,904kWh/annum

Equivalent diesel consumption        –        72,000ltrs/annum (approx)

CO2 Emission Reduction                    –        190,000kg (approx)


Project Highlights:

  • Implementation based on phased approach aimed towards incrementally reducing the dependence of generator use on the premises
  • First phase: 100kW solar + 50kWh battery storage. Features of the 1st phase include
    1. Replaces use of 100kVA generator during sunshine hours
    2. Battery storage ensures generators are also not needed to power low demand night loads like security lights and critical systems. This means night time use of the generators is avoided as well for critical loads.
    3. Reduction in loading of 200kVA, 500kVA and 1000 kVA during daylight hours, leading to significant fuel savings
    4. Intelligent management system that automatically switches between the different power sources (solar, grid, generators) in real-time, depending on load profiles and solar irradiation. This takes away human-error in the management of the systems
    5. Remote monitoring and control capabilities