IEEE Power & Energy Magazine - Grid Edge 2023 - 66
The MEA project had several commercial, social, and
technical aims (see the EA Technology project close-down
report in the " For Further Reading " section for full details).
The key technical objectives were to
✔ learn customer driving and charging habits
✔ develop and test the equipment to ascertain its ease
of installation
✔ evaluate the range of networks that will experience
technical problems (voltages lower than statutory
limits and overloads) through the creation of
EV clusters
✔ investigate the types of networks in which the Esprit
technology can operate successfully.
To accomplish these objectives, MEA carried out two
trials: one technical and one social. The technical trial
(illustrated by the red pins in Figure 1) created ten clusters
with a total of 101 EVs (7-13 EVs per low-voltage network)
to study the performance of the EV management
solution. For this trial, the project primarily used existing
infrastructure, as it only needed to install sensors at the
head of the feeders, a controllable charging point, and a
programmable logic controller (PLC) at the substation to
host the EV management solution (Figure 2). The social
trial (shown by the blue pins in Figure 1), on the other
hand, involved 118 participants with the purpose of studying
the charging behavior of EV users (such as range anxiety
and typical charging patterns). In this trial, the EV
users did not have a " smart " charging point because they
were not managed at all.
The project studied the technical aspects associated with
figure 1. The distribution of EVs during the MEA project
(technical: red; social: blue).
the adoption of EVs and also the social, environmental,
and economic implications, resulting in a comprehensive
One-Phase Cable
Three-Phase Cable
Data and Control Flow
Substation
11/0.4 kV
Charging Point
Sensor
PLC
figure 2. The infrastructure used for deploying the EV management solution.
66
ieee power & energy magazine
november/december 2018
IEEE Power & Energy Magazine - Grid Edge 2023
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