IEEE Power & Energy Magazine - May/June 2014 - 58

Billing and
Accounting

Finance

DOC
Management

Corporate

HR

Biz Ops

Trading

Scheduling

Settlements

Forecasting

System Planning

System
Planning

Capacity
Planning

Network
Planning

Data
Warehousing

Engineering

Maintenance Parts/
Work
Asset
Scheduling Supply Management Management

Sys Ops

EMS

DMS

OMS

Customer Service

CIS

MDM

IVR

Backhaul Coms

Field Coms

Fiber
Network

WiMax
Network

Station Bus
(Revenue Data)
WiMax

Revenue Data

Residential
Metering

IPP

Color Code

Broadband
PLC

Process Bus
(Breakers, Switchgear,
Reclosers, Transformers)

Commercial
Metering

Narrowband/
Broadband
PLC

Industrial
Metering
Gateways

Biofuel

Wind

Data

Data
Warehousing

Microwave
Network

Net Meters

PV

GIS

Public
Proprietary RF
Network

Last Mile Coms

Two-Way Coms

DSM

ERP

COM

HR:

Human Resources Department

ERP:

Enterprise Resource Planning

DOC:

Document Management

EMS:

Energy Management System

DMS:

Distribution Management System

OMS:

Outage Management System

DSM:

Demand-Side Management

GIS:

Geographic Information System

CIS:

Customer Information System

MDM:

Metering Data Management

IVR:

Interactive Voice Response

PLC:

Power Line Communication

WiMax:

IEEE 802.16 Wireless-Networks Standard

RF:

Radio Frequency

PV:

Photovoltaic

Biz Ops: Business Operations
Sys Ops: System Operations
Coms:

Communication Systems

IPP:

Independent Power Producers

VVO:

Volt/Var Optimization

CVR:

Conservation Voltage Reduction

Small
Hydro

Asset

figure 4. A layered smart grid system integration map.

that subsequent moves toward other areas of the system can
be realized seamlessly and without the need to substantially
change or upgrade the assets that have already been rolled
out. as an example, if after ami rollout the plan is to take
substation automation as the next area for investment, the
utility should ensure that subsequent downstream moves to
implement demand curtailment or load shedding as well as
upstream moves to implement asset management or selfhealing can be realized without having to change or upgrade
the investments made for substation automation and ami.
Figure 4 shows the extent to which the specifications of
various parts of the system need to be taken into account
to ensure seamless integration of components, assets, and
functions in both the spatial and temporal domains. it
emphasizes the notion that the sphere of influence of smart
grid capabilities varies considerably across different functions. Some span upstream layers of the system, involving
58

ieee power & energy magazine

enterprise functions, utility operations, and revenue management (e.g., contingency management, asset management,
energy market participation, and so on), while others traverse local downstream layers of the system, involving field
and prosumer-facing assets (e.g., demand response, load
management, and so forth). it is the latter group that places
a heavy burden on the ami system, as it requires close integration and tight operational linkages to ami system components, protocols, and technologies. a poorly designed and
implemented ami system would prove to be inhibitive for
the efficient implementation and/or correct operation of such
downstream smart grid functions.

The Smart Grid Integration Map
as discussed above, the point of departure on the path to the
smart grid and the particular set of smart grid capabilities
each utility may want to achieve will not be the same across
may/june 2014
Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - May/June 2014
