IEEE Power & Energy Magazine - July/August 2014 - 68

(a)

(b)

figure 9. The HMIs for (a) maintenance management and (b) sustainability indicators. The HMIs are presented in Spanish,
as they were designed for the Huatacondo community's use.

their livelihoods, expressing concern about the loss of cultural
identity that electricity implies and about whether the project
would reinforce a paternalisitc relation of the villagers with
mining companies, jeopardizing the community's capacity for
adaptation and its autonomy.
it was important at this stage to reinforce behavioral
changes regarding electricity consumption. When the
new system was explained, villagers indeed dramatically reduced their average aggregate power demand from
30 kW to 12 kW in a normal day.
Stage 4

many projects that are operational when installed subsequently fail, leading to user dissatisfaction and abandonment of the project. for this system's basic maintenance
and operation, the community e-mails maintenance reports
with annotations, observations, and questions. such feedback is essential to creating and reinforcing awareness of
the energy system.

The Social SCADA System at Huatacondo
once the social characteristics of the huatacondo community
had been identified and a description of the power system completed, the relevant information required by its inhabitants to
enable a socia; sCada was defined. This process guarantees
the community's engagement and acceptance of the project.
a computational tool was developed for supervision of
the maintenance and generation system, allowing the inhabitants to be aware of the actual status of the energy system
and providing useful information for decision-making processes. The following functionalities were determined to be
relevant for the community:
✔  a monitoring system for generation units, including
the energy supplied by each unit
68

ieee power & energy magazine

✔  sustainability indicators
✔  maintenance management
✔  the ability to measure energy consumption per household
✔  demand response
✔  an alarm system.

in the following section, a more detailed description of two
of the most important of these functionalities is presented.
The maintenance management interface is capable of
communicating the predictive maintenance schedule and its
corresponding weekly tasks to the community. figure 9(a)
shows the maintenance management hmi and scheduled
tasks for a specific week. The sustainability indicators are
a set of indicators that were created as a way of monitoring
the community's development over time; they provide information such as reductions in greenhouse-gas emissions, fuel
savings, average family income, and educational attainment.
figure 9(b) shows this interface. in this case, the overall cost
for the social sCada system was about Us$3,000.

Community Perceptions
a survey of perceptions of the impact of the huatacondo project at the community level that covered 95% of households
was conducted in august 2011, almost a year after the commissioning stage was completed. its results, shown next, indicate high acceptance of the microgrid within the community.
Impacts on the Community

regarding impacts on the community, 73% of the respondents stated that the project had a positive effect on their
daily lives since they could now perform more recreational
and economic activities that require electricity, and 20%
thought that the microgrid had neither positive nor negative
effects. meanwhile, 7% believed that 24-hour electricity
could have negative effects on the community.
july/august 2014



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - July/August 2014

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IEEE Power & Energy Magazine - July/August 2014 - Cover3
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