Small community Test site in Rafina: Meltemi

Small community Test site: Meltemi

A. Vassilakis, G. Messinis, V. Kleftakis, K. Latoufis, A. Dimeas, N. Hatziargyriou

School of Electrical and Computer Engineering

National Technical University of Athens

Iroon Polytechniou 9, 15780, Zografou, Athens, Greece

e-mail: {avassil, vkleft}, {gmessinis, latoufis, adimeas, nh}


Meltemi is a seaside resort located 15 km north-east to Athens. It consists of 170 cottages used as a holiday resort mostly during summer. The Meltemi camping is used as a test field for the Electric Energy Systems Laboratory (EESL) of the National Technical University of Athens. The filed has been used in a large number of European and national R&D projects and studies to validate methods of managing consumption and increasing the use of RES, testing focusing on scenarios related to emergency and critical grid situations as well tests that focus on the provision of ancillary services and shedding support during peak load. Within the campus a small wind turbine test site allows outdoor measurements of the power and energy production of household small wind turbines for grid connected and battery charging applications.

The campus facilities

The campus facilities comprise various Distributed Generators (DGs) including a 40kVA diesel generator, 4.5 kW photovoltaic panels and small residential wind turbines that can partially support the Meltemi camping load in absence of utility grid, Fig. 1. A Multi-Agent system (MAGIC) has been installed in a number of households allowing the DGs and the loads to negotiate in order to optimize energy production and consumption [1]. A critical component of the MAGIC system is the intelligent load controller, based on an embedded processor that runs Linux and can be used to monitor the status of a power line providing voltage, current and frequency measurements. In addition, the consumers are informed online about the status of the system, their consumption and energy costs. Furthermore, a small wind turbine test site allows installation and testing of small wind turbines ranging from 1.2m to 7.6m rotor diameter in off-grid (battery charging) or grid tied operation [2]. The facilities of the test site are in accordance to the IEC international standard IEC 61400-12-1. Planned facilities include an e-bikes sharing system. Stations with automated self-serve docking-charging systems, are located at major destinations centers. The station utilizes energy produced by RES and a battery bank (of 150Ah) for recharging the battery of electric bicycles, but are also connected to the regular power grid, via a DC-AC battery inverter. The stations are able to work on various modes, both island and grid connected mode as well as to accomplish zero net energy consumption.

Figure 1. The meltemi test site.


A.. Dimeas, N. Hatziargyriou , “Intelligent applications for consumer management”, Power and Energy Society General Meeting, 2012 IEEE.

K. Latoufis, G. Messinis, P. Kotsampopoulos, N. Hatziargyriou, “Axial flux permanent magnet generator design for low cost manufacturing of small wind turbines”, Wind Engineering, Vol. 36, No. 4, 2012.


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