PV in Mini-grids and hybrid systems

Smaller PV hybrid mini grids (<100 kW)

Approach:

  • Analysis and evaluation of PV hybrid systems < 100 kW consisting of a PV- and a battery-component, with a small diesel generator (used as back-up in case the battery capacity is not sufficient)
  • Collection and analysis of the following parameters:
    •  Performance
    • Grid stability
    • Fuel consumption and cost
    • Load profile
    • Maintenance effort and cost
    • Levelised cost of energy
    • Logistical problems and organisational issues
    • Options to connect the respective system to the big (national) grid - it this is approaching

Expected results: 

Detailed catalogue of recommendations as part of a final evaluation report for policy makers and utilities.

    PV as a fuel saver (systems >100 kW)

    PV as a fuel saver (systems >100 kW)

    Approach:

    • Analysis of bigger systems in the range of >100 kW typically consisting of a bigger diesel generator supplemented by a small PV-component (often not exceeding 20-25% of the overall installed capacity) but without any battery component (not necessary since with a diesel generator being the “dominant part” no storage required)
    • Analysis of the potential of PV to support electricity generation ("PV as fuel saver")
    • Simulation of a specific system as it is and as it could be if the PV generation part is increased
    • Parameters to be analysed:
      •  Performance
      • Grid stability
      • Fuel consumption
      • Load profile
      • Maintenance effort
      • Levelised cost of energy

    Expected results: 

    Detailed catalogue of recommendations as part of a final evaluation report for policy makers and utilities including critical preconditions for system improvement, overview on existing tools, e.g. HOMER and others and a flowchart for decision making.