Grid­ Connected Backup System for Fantsuam Foundation Load and design requirements

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The System Requirements of the electrical power backup system has been defined and documented. The document has been sent out to suppliers in the region as a call for tender.

The full document can be downloaded here.

The requirements can be summarized as following:

  • The main source of alternate power for all subsystems should be groups of deep cycle batteries.
  • All the subsystems with exception of L4 should be connected to the grid and received stabilized power when available
  • The L1 subsystem (NOC) should include a solar­PV caption system as an extra source of energy. The maximum size of this system should be 2 KWp.
  • In order to evaluate the cost savings of using low power equipment in load subsystem L2, the quotes should include a comparative price for a daily load of 45 KWh vs 25 Kwh.
  • The design should allow the charge of the batteries from the existing generator.
  • The design proposal should include an overall design of the installation and the type/model/origin of equipment to be implemented.
  • The design proposal should include the costs for all internal wiring and electrical installation necessary, including grounding, sockets, distribution and dividing boxes, etc.
  • The design proposal should assume that the batteries, solar panels, inverters should be placed in the new network operation center.
  • Comparative prices between equipment options should be included including benefits and drawbacks of the different options.
  • Warranties of both hardware and installation should be included.
  • First expression of interest and initial quotes are expected before the 10th April 2007