Structure of microgrid Greece

What is a microgrid & how does it work?

It is a small village scale autonomous microgrid, composed of a 3-phase low-voltage network, solar PV generation, battery storage, and a backup generator. The grid is composed of overhead power lines and a communication cable running in parallel to serve monitoring and control requirements.

What is an energy microgrid?

A microgrid is a small electricity generation and distribution system containing distributed generation, energy storage systems, loads and monitoring and protection devices. It is an autonomous system that is self-controlled and self-managed. An energy microgrid provides users thermal energy for heating and cooling in addition to electricity.

How to choose a microgrid?

For a microgrid in an island or remote area, the components and structures should be decided based on local environmental conditions. For example, when there are abundant wind and solar resources, the microgrid can be composed of wind turbine generators, PV arrays, diesel generators, and batteries.

Should a microgrid be built on islands or remote areas?

Independent microgrids on islands or in remote areas: It is difficult and expensive to construct a conventional power grid on islands or in remote areas, so a microgrid can be attractive. For a microgrid in an island or remote area, the components and structures should be decided based on local environmental conditions.

What is the basic architecture of a grid system?

The basic architecture of a µGrid system is presented in Fig. 1 (a), which shows that a µGrid system generally consists of four parts: i) the distribution system, ii) the DG sources, iii) energy storage, iv) control and communications modules. Some of the details of each part of the system are discussed below. Fig. 1.

Who can build a microgrid?

A microgrid can be constructed and operated by power users, power companies or independent third-party energy companies.