The scope of Task 11 is PV based hybrid generators that combine PV with other electricity generators and also energy storage systems. A particular focus is on mini-grid systems in which energy generators, storage systems and loads are interconnected by a “stand-alone” AC distribution network with relative small rated power and limited geographical area. The mini-grid concept has potential applications that range from village electrification in less developed areas to “power parks” that offer ultra-reliable, high quality electrical power to high tech industrial customers. These systems can be complex, combining multiple energy sources, multiple electricity consumers, and operation in both island (stand-alone) and utility grid connected modes.

The main goal of Task 11 is to promote photovoltaic (PV) technology as a technically relevant and competitive energy source in hybrid power generation systems and mini-grids. It aims to enhance the knowledge base of PV hybrid mini-grids and reduce barriers to market penetration of these systems.

The objectives of Task 11 are to:

- Define concepts for sustainable PV hybrid mini-grids taking into account local factors;
- Provide recommendations on individual designs in order to achieve high penetration of PV;
- Assess the potential of technologies to be mixed with PV for hybridisation; and,
- Compile and disseminate best-practices on PV hybrid power systems.

This paper provides both an introduction to the work of the international group of experts on Task 11, as well as an update of the achievements so far and the future opportunities.