Smart Grid
Figure 4: Navigant Consulting Approach to Determining Smart Grid Value
Source: Navigant Consulting
a substantially more efficient and reliable grid by 2020. The implementing. The picture will continue to change as the
Galvin Electricity Initiative estimates the Smart Grid could technologies are combined with new rate structures and
support annual savings over the next 20 years of US$49 billion business processes.
for power disturbances, US$20 billion in power consumption
and US$20 billion in DER benefits; an additional US$117 Investment Recovery
billion for infrastructure investment could also be saved.
3
The Gaining approval for recovery of investments has been a
Brattle Group estimates present value benefits totaling US$568 requirement for major deployments of Smart Grid technologies
billion, including PHEVs, over the period 2010-2050.
4
so far. Most AMI projects have received cost recovery in the
Furthermore, the Information Technology & Innovation form of surcharges to monthly electric bills, inclusion in base
Foundation (ITIF) estimates that investing US$50 billion over rates, or trackers which are unpredictable costs determined at
the next five years could create or save 239,000 jobs per year.
5
the end of the year and then recovered over a 12-month
KEMA estimates that US$16 billion in federal Smart Grid period.
7
For example, Oncor in Texas will levy a monthly
investment over the next four years could create 280,000 jobs.
6
surcharge for customers to recover its costs. However, in order
for Texas utilities to recover smart meter costs, they must meet
Evolution of the Smart Grid minimum standards ranging from two-way communications,
We are at a critical period in developing our understanding to providing 15-minute or shorter interval data, and
about what the Smart Grid will really be, and how it will be supporting Home Area Networks (HAN) based on non-
deployed and utilised. A number of factors will significantly proprietary standards such as ZigBee
®
.
influence the Smart Grid and the way in which it is deployed
in the US over the next few years. The following looks at four Standards Development
factors that will be especially important in the near-term. In order to make Smart Grid interoperable and interactive,
protocols need to be established so devices are able to talk to
Experimentation & Learning one another. However, there are several hurdles for standards
Most deployments are beginning with focused pilots to development. Most utilities still use legacy, proprietary systems
understand technology capabilities and business process that will require significant investment to upgrade, and also
impacts. These projects will be conducted over the next few require security add-ins in order to correctly recognise
years, and the utility and vendor communities will learn a connected devices. Standards will require significant vetting
tremendous amount about how these complex systems work before they are generally adopted, and must accommodate
and should be improved to scale-up to full deployments. Even enough flexibility to satisfy the 80/20 rule (i.e., meet 80% of
after Smart Grid technologies are widely deployed, some the utility’s interoperability needs, but leave 20% open for
utilities have indicated that it may be some time before they operating requirements from vendors and utilities).
8
Several
tap the full capability of the technologies and systems they are groups are working on Smart Grid standards, including, but
132 worldPower 2009
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