IEEE Electrification Magazine - June 2018 - 49

implementing an Internet-like
energy system to supply energy. It
is also one element of the national
PV
key research and development
Plan of china, started in 2016,
CHP
which is supported by the chinese
IEMS
Ministry of Science and technology.
Distributed
this research project is led by the
Control
china Southern Power grid compaSubstation
ny ltd. (cSPg), the second-largest
Distributed
power grid company in china, with
Control
several high-technology firms and
Ice Storage
PV
universities, constituting a formidaBattery
PV
PV
Storage
ble research group.
Heat
Storage
the demonstration project, based
2
in a 12-km industrial park, is in a
suburb of guangzhou, the capital of Figure 7. A location map of the IEMS and other facilities and resources in the demonstration project.
guangdong province in the southern
part of china (Figure 7). Most of the
the concerns on possible power-quality issues (overpower consumers in this park are industrial and commercial
voltage disturbances and feeder congestions)
consumers, such as a manufacturer of tires, a cooling
xx
the peak load (287 h/year, according to statistics) can
machine facility, and a pharmaceutical factory. the maxibe eliminated by operating multiple energy flows with
mum electricity load in 2016 was about 34.5 MW, with annuthe IeMS, including demand-side response/manageal electricity consumption of 160 million kWh, a heating load
ment and multiple energy storage, such that the elecof 50 t/h (in steam), and a cooling load 15 MW. there are
tric peak load can be reduced by 20%.
already 2 × 15 MW of cchP generation and 9.4 MW of photoas a result,
voltaic (PV) energy in this park. there are also a 110-kV
xx
approximately ¥48 million of investment on energy
substation and 10-kV distribution feeders in this park. corresupply facilities by power grid companies (i.e., the
spondingly, heating pipelines deliver steam and hot water
cSPg) could be reduced or delayed, thus making the
for the consumers.
system more economical and efficient
the goals of this project include
xx
a renewable generation (mostly PV) capacity of
xx
carbon emissions could be reduced by 6,000 tons/
>25 MW, with no curtailment allowed
year, thus making this industrial park more envixx
annual consumption of electricity trading from the
ronmentally friendly.
bulk power market of <20%
also, a mature market for ancillary services and even
xx
reducing the peak electricity load by >20%.
for the spot electricity market is still in development in
china. In the near future, the economic and environmenDeployment of the IEMS
tal benefits of the IeMS can be further extended by coopthe deployment of the IeMS and its relationship with other
erating with power grid companies' ISo and integrating
facilities in this project are illustrated in this section (Figmultiple local resources from different energy sectors.
ure 8). In the IeMS, there are distributed control devices
Conclusions
deployed on the user side, e.g., in an energy-intensive factory
there are many profound environmental, economic, social,
or a smart building, to realize a regional autonomy demand
technical, and policy forces that are driving the developresponse, considering the flexibility of local resources and
ment of the eI in china. the eI is proposed to break down
multiple types of energy. these distributed control units are
the walls between different energy sectors in the traditionimportant basic units of the eI and the IeMS. on the other
al energy ecosystem, so that all types of energy flows,
hand, the IeMS also directly controls some distributed
including electricity, heating, cooling, gas, and transportaresources, such as eV charging and discharging, pipe and
tion, can be optimized together in terms of planning and
feeder reconfiguration, and centralized energy storage sysoperation. consequently, the eI will change energy productems. additionally, the IeMS makes the industrial park act as
tion, transmission, and consumption patterns and will
a virtual power plant from the perspective of the indepenbecome an important way to promote china's energy
dent system operator (ISo) from power grid companies.
transformation. It will improve energy efficiency, energy savaccording to calculations on the benefits of deploying
ing, emissions reduction, and sustainable development,
the IeMS, the belief is that
xx
all of the power generated by newly built PVs can be
which is bound to have a huge impact on other industries
consumed by customers because the IeMS addresses
and society as a whole.

IEEE Elec trific ation Magazine / j u n e 201 8

Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2018