Home Energy Management Systems (HEMS)

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17 Φεβ 2014 (πριν από 3 χρόνια και 1 μήνα)

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Home Energy Management
Systems (HEMS)

ENGR 83

Foothill College

Overview


Smart energy paradigm


End to end Smart Energy


Home Area Networks


Smart energy gateways


Connecting HAN/HEN


ZigBee™ Smart Energy Profiles

Load Duration Curves

Smart Grid


Smart Community

Source: Frost & Sullivan analysis.

Energy Management System

Zero Emission
Buildings

Storage
Battery

Solar Power

Wind Power

Smart House

EVs and PHEVS

New
-
generation Gas
Station

Solar Power

Cogeneration

Biogas

Wasted
Heat

Na
-
S
Battery

Wind Power

Mega Solar

Main Grid

Construct an energy system that is mutually beneficial for the
main grid operator and the regional energy management
provider.

Connect BEMS
with regional EMS

Smart Meter:
Visualization of home
energy use and demand
control

Home
storage
battery

Utilize IT for peak cuts

Construct charging
stations for EVs.

Enable better use of
heat in addition to
electricity.

Regional Energy
Management
Provider

Information
Network

Smart Grid Overview
-

Smart
Community Roadmap

Link

between

regional

EMS and

entire
grid


Solar panel prices and cost of
storage cells will decrease
significantly


As regional EMS
demonstrates its value,
technology and know
-
how
will be accumulated


Regional EMS will gain ground
as storage cells become
cheaper and are further
disseminated


Distribution and transmission
networks that enable two
-
way communication between
the demand
-
side and the
grid
-
side will be actively
established


An EMS that optimizes the
balance in economy and
security between the regional
EMS and the grid will be
established


An EMS that stores energy by
charging EVs at the time of
excessive renewable energy,
and supplies energy to the
grid at high demand, will be
used

2011


2020

2021
-
2030

2031 onwards

Source: Frost & Sullivan analysis.

Buildings


Zero Emission Buildings will
be introduced


New public buildings will be
Zero Emission Buildings

Houses


Remote reading using smart
meters


The HEMS will be
disseminated


HEMS and regional EMS will
be integrated. All power
generated at houses will be
used optimally


A fully
-
automated HEMS will
be realized


massive reduction in
emissions for all new
buildings as a group

Drivers and Restraints


Market Drivers

Market Restraints

High penetration of EVs

Supported from government subsidies and local incentives

The high cost discourages homeowners from adopting the HEMS

Household consumers see little benefit in storing energy at their homes

Technological advancement in battery technology

There are problems with the existing HEMS

Total HEMS Market: Key Drivers and Restraints (Japan)

Source: Frost & Sullivan analysis.

Revenue Forecast

Total HEMS Market: Revenue Forecast (Japan), 2010
-
2015

Note: All figures are rounded; the base year is 2010. Source: Frost & Sullivan analysis.

Distribution Channel Analysis

HEMS Manufacturer

Households

Solar Installer

Utilities

Solar Distributor

Housing companies

Utilities and HEMS

manufacturers need to interface to
integrate components and ensure smooth
utility
-
household interaction

Solar installers
certified by PV
companies/utilities

Shipping of solar panels,
balance of system equipment,
HEMS (in cases where HEMS
manufacturers sell to
distributors)

Housing companies
will play a key role in
the value chain. Eco
-
house builders will
source directly from
the HEMS
manufacturers

Source: Frost & Sullivan analysis.

Home Area Network

A
home network

or
home area network

(
HAN
) is a residential
local area network

(LAN) for communication between digital
devices typically deployed in the home, usually a small number of
personal computers

and accessories, such as printers and mobile
computing devices. An important function is the sharing of
Internet
access
, often a
broadband

service provisioned by
fiber
-
to
-
the
-
home

or via
Cable Internet access
,
Digital Subscriber Line

(DSL) or
mobile broadband

by
Internet service providers

(ISPs). If an ISP
only provides one IP address, a
router

including
network address
translation

(NAT), proxy server software and typically a
network
firewall
, allows several computers to share the external IP address.
The router function may be assumed by a PC with several network
interfaces, but a dedicated router device is more common, often
including a
wireless accesspoint
, providing WiFi access.

http://en.wikipedia.org/wiki/Home_network

Home Area Network (HAN)

http://www.pennenergy.com/index/power/smart
-
grid/display/3151828412/articles/pennenergy/ugc/smart
-
grid/the
-
home
-
area
-
network
-
architectural
-
considerations
-
for
-
rapid
-
innovation.html

Home Energy Network

Gridstream provides interconnectivity with ZigBee®
-
enabled devices that use the Smart
Energy Profile. Emerging applications for this technology include: In
-
home energy displays,
smart thermostats, smart appliances, distributed generation, recharging stations.

GE Nucleus™ Energy Manager

Residential EMS Vendors


BestBuy


Home Depot


GridStream


General Electric

ZigBee™ Smart Energy Profile

Homeowners must find new ways to conserve energy, and utilities need to
deliver enhanced services and manage peak demand. Wouldn't it be helpful if
utility companies and consumer devices could carry on a continuous
background dialog about energy supply and consumption through wireless
networking? They can, using the ZigBee Smart Energy (SE) profile.


SE is the newest application profile of the ZigBee wireless network standard. It
defines the behaviors of secure, easy
-
to
-
use wireless communications between
utility companies and home area network (HAN) devices. ZigBee SE offers
developers an open standard for designing devices that serve the fast growing
advanced metering infrastructure (AMI) and HAN sectors. The technology
enables two
-
way communications between common household devices and the
utility companies' back
-
end IT infrastructure. The profile benefits consumers by
allowing them to cost
-
effectively manage energy consumption, using automation
and near real
-
time information, while having the ability to choose interoperable
products from a diverse range of manufacturers.

http://www.sensorsmag.com/networking
-
communications/standards
-
protocols/designing
-
smart
-
energy
-
devices
-
1526

ZigBee™ Home Automation

ZigBee Energy Service Portal

The Energy Service Portal serves as a bridge between the utility’s communication
network and the HAN. (Courtesy of the ZigBee Alliance).

ZigBee Enabled Home

A ZigBee
-
enabled home energy management system can employ multiple Application Profiles to provide unified
control of all home energy systems. In this example, the system uses the Smart Energy (SE) profile to pass the
utility’s load management and demand response messages to the home’s major loads and energy sources. The
Home Automation (HA) and RF for Consumer Electronics (RF4CE) profiles are used to communicate with Smart
Appliances, lighting systems and other consumer
-
controlled products. (Image Credit Freescale Semiconductor.)

ZigBee HAN and AMI

The figure

shows a typical Smart
Energy network, within which are
actually two communications
networks. The first is the
neighborhood area network (NAN)
that provides a link from electricity
meters to the utility's data centers.
The second network is the HAN. The
HAN is formed by the energy
services portal (ESP), which is
typically a meter but could be a
broadband gateway or other device
that has connectivity to the utility
data centers. The ESP serves as the
connection between the HAN and the
NAN and provides utility data to the
home. The ESP also performs a
security function by letting only
authorized devices on the network.
Because your utility consumption
data is private, utilities do not want
unauthorized devices on the network.

http://www.sensorsmag.com/networking
-
communications/standards
-
protocols/designing
-
smart
-
energy
-
devices
-
1526

ZigBee Smart Energy
Profile 1.x Standard

ZigBee Smart Energy is the world's
leading standard for interoperable
products that monitor, control, inform
and automate the delivery and use of
energy and water. It helps create
greener homes by giving consumers
the information and automation needed
to easily reduce their consumption and
save money, too. All ZigBee Smart
Energy products are
ZigBee Certified

to perform regardless of manufacturer,
allowing utilities and consumers to
purchase with confidence. Every
product needed to implement a robust
ZigBee Smart Energy home area
network (HAN) is available. These
products make it easy for utilities and
governments to deploy smart grid
solutions that are secure, easy to
install and consumer
-
friendly.

http://www.zigbee.org/Standards/ZigBeeSmartEnergy/Overview.aspx

ConnectPort X2e Smart Energy

The user
-
installable ConnectPort X2e supports
applications

including demand response, energy efficiency, and
consumer engagement, says Digi. The gateway can be controlled via utility
-
hosted websites designed for customer
engagement, as well as directly by the customer via Digi’s Android
-

and iPhone
-
compatible
Smartlee application
.



Internet of Things

http://en.wikipedia.org/wiki/Internet_of_Things

Machine to Machine (M2M)

Machine to machine (M2M)

refers to technologies that allow both wireless and
wired systems to communicate with other devices of the same ability.
[1]
[2]

M2M
uses a
device

(such as a sensor or meter) to capture an
event

(such as
temperature, inventory level, etc.), which is relayed through a
network

(wireless,
wired or hybrid) to an
application

(
software

program), that translates the captured
event into
meaningful information

(for example, items need to be restocked).
[3]

Such communication was originally accomplished by having a remote network of
machines relay information back to a central hub for analysis, which would then
be rerouted into a system like a personal computer.
[4]

However, modern M2M communication has expanded beyond a one
-
to
-
one
connection and changed into a system of networks that transmits data to personal
appliances. The expansion of IP networks across the world has made it far easier
for M2M communication to take place and has lessened the amount of power and
time necessary for information to be communicated between machines.
[5]

These
networks also allow an array of new business opportunities and connections
between consumers and producers in terms of the products being sold.
[6]




http://en.wikipedia.org/wiki/Machine
-
to
-
Machine

Summary


Home Area Networks are essential in both
monitoring and managing home energy


Integration of device data, communications,
control, and security are all challenges (WIP)


Internet Protocol (IP) will increasingly become
part of the ‘wiring’ in future smart homes.

References


http://en.wikipedia.org/wiki/Home_network


http://www.zigbee.org/Standards/ZigBeeSm
artEnergy/Overview.aspx


http://www.digikey.com/us/en/techzone/ene
rgy
-
harvesting/resources/articles/zigbees
-
smart
-
energy
-
20
-
profile.html



http://www.resnet.us/



http://demandenergynetworks.com/