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Executive Summary
The greatest technological achievement of the last century, according to the
National Academy of Engineers, was neither the internet nor the airplane, the
artificial heart nor the satellite, the refrigerator nor the assembly line,
but that which enabled them all: the electrical grid. There is no small irony
in this as contrary to what one may expect, the electrical grid was not meticulously
planned and executed but rather cobbled together somewhat haphazardly as utility
companies discovered the benefits and efficiencies that could be realized from
interconnecting their electrical systems, and over decades it grew into the
nationwide network. The electrical grid's development then was evolutionary,
not revolutionary.
Evolution by its very nature is a never-ending series of experiments, some
fostering advancement, others impeding it. Interconnection is the prime example
of the former while deregulation has proven to be an evolutionary dead end,
one consequence of which has been the paradox that the very mechanism that
has enabled so much of the technological innovation of the last generation
has itself employed so comparatively little of it. Where computers, remote
sensors, advanced modeling and myriad electronic devices have transformed every
other major industry, the electrical grid effectively remains 'dumb.' However,
now that the deregulation's failure has been widely recognized, regulatory
uncertainties are being resolved, long-ignored upgrades expedited, and changes
that reflect the needs of the marketplace implemented. Combined, the electricity
industry is building momentum toward its next evolutionary leap -- to
an electronically-enabled electric grid delivering digital-quality power.
This shift away from analog mechanical operation will have the most profound
effect on the electricity industry in its history. From an investment point
of view, the beauty is in the simplicity of the premise. If the US wants to
maintain its economic competitiveness as well as its standard of living, both
of which are directly correlated to electrical energy consumption, 1 the
changes needed to adapt to the demands of the Digital Age must be made.
And soon: the US has fallen to seventh place in world rankings of countries
positioned to participate in and benefit from information and communication
technologies.2
In its most basic form, the transition from analog to digital-quality electricity
is a matter of reliability, and realizing the necessary level of service will
take a considerable amount of time and involve staggering sums of money, with
industry estimates running as high as two trillion dollars over the next two
decades.3 To
take advantage of the various opportunities associated with the build-out,
the Emerging Trends Report (ETR) has put together a broad spectrum 'best of
breed' approach, which includes various sector-specific benchmarks that must
be met in order to remain viable. This is of paramount importance in an industry
with more than $800 billion of assets, for the trick to investing in the electrical
grid resides in differentiating between the sectors to invest in now, the sectors
to monitor for the breakthroughs necessary to make them viable in the years
ahead, and the sectors to disregard entirely as pie-in-the-sky hype that will
only reward those promoting them.
The Digital Age
The following chart identifies the de facto dawn of the Digital Age. With
the crossing of two innocuous lines, 1997 became the watershed year in which
the longstanding correlation between economic growth and electricity use 'uncoupled'
and began to reflect the guiding principle of the Digital Age: increased output
from reduced electrical consumption.4

Source: EIA Annual Review 2004
Increasingly permeating all aspects of our daily lives, the icon of the Digital
Age is the microprocessor. Perhaps giving new meaning to the word ubiquitous,
the proliferation of microprocessors has been nothing short of stunning. From
virtually zero thirty years ago, the more than 12 billion microprocessors extant
in the US today outnumber computers by 30:1, people by 40:1, 5 and
are found in everything from digitally-managed assembly lines to automobiles
to household appliances to toy dolls.
Over the last few years, the internet and broadband access have subtly shifted
the emphasis from processing speed to storage capacity as myriad digital devices
access and share digital music, photographs, video and unimaginable amounts
of data. Once the back office orphan, the humble server now congregates in
vast populations that enable data retrieval and transference on a planetary
scale; in the US alone these server farms now constitute 4% of total electrical
demand.6 Electrical
consumption has become such an issue for server farms that the likes of Google
and Microsoft are now siting server farms on the basis of access to cheap,
abundant electricity.7
But in order to operate properly, a microprocessor requires a supply of electricity
that is significantly different from the analog, or continuously varying, supply
of alternating current that is delivered by the existing electrical grid. Microprocessors
must have what is known as 'digital-quality' power: a continuous source of
electricity free of signal variation. To resolve the conflict between what
is available and what is needed, the nearly universal practice has been to
employ a rectifier to convert the alternating current delivered by the electrical
grid into direct current for use by the digital device. This practice adds
yet another layer of waste to an already profligate system. The single largest
benefit of the evolution to the "Smart Grid" (see below) and digital-quality
power will be the improved efficiency and reliability of the system as a whole.
Consider the wastage inherent to the electrical system bringing the image
of this report to your computer screen. Roughly two-thirds of the energy produced
to power your computer was lost as waste heat in the centralized generation
of electricity; it was simply vented into the atmosphere. Of the remaining
third, line losses during transmission and distribution misplaced another roughly
seven percent bringing the electricity to your wall outlet. And finally, half
of that energy was lost as waste heat converting the 110-volt alternating current
to the 12-volt direct current your computer (and countless other digital devices)
needs in order to operate free of the even minor power fluctuations that can
adversely affect digital circuitry. So in this example for every 100 watts
of electricity generated, only about 16 actually get used. Imagine the waste
attendant to the server farms of the five largest search engines in the US,
which combined are estimated to continuously operate more than 2 million servers.8
That is not to say the Digital Age will entail a shift from alternating current
to direct current. Rather, the shift will be from an inefficient, slow, outdated
mechanical switching to a focused, faster, more intelligent system employing
electronic devices to improve monitoring capabilities and load capacities while
smoothing fluctuations and increasing the reliability of the existing alternating
current.
Below is a rough comparison of the existing grid and what the future holds:
| Existing Grid |
Smart Grid |
| Electromechanical |
Digital |
| One-way communications (if any) |
Two-way communications |
| Built for centralized generation |
Accommodates distributed generation |
| Radial topology |
Network topology |
| Few sensors |
Monitors and sensors throughout |
| "Blind" |
Self-monitoring |
| Manual restoration |
Semi-automated restoration and, eventually,
self-healing |
| Somewhat prone to failures and blackouts |
Adaptive protection and islanding |
| Check equipment manually |
Monitor equipment remotely |
| Limited control over power flows |
Pervasive control systems |
| Limited price information |
Full price information |
| Few customer choices |
Many customer choices |
Source: Center for Smart Energy: "Smart Grid of the Future." 9
Today digital-quality power demand in the US constitutes roughly 10% of total
electrical demand; by 2020, the Electric Power Research Institute (EPRI) projects
digital-quality power demand will range from between 30 and 50% depending on
the industry's ability to meet accelerating growth.10
Effecting sweeping changes in a mechanism as vast and complicated as the electrical
grid to meet this new usage is rather like changing course in a fully laden
supertanker. The inertia behind the century-long accumulation of more than
10,000 power plants, 12,000 transmission and distribution substations, and
more than 1.3 million miles of electrical lines, 160,000 miles of which are
high voltage transmission cable (235 kilovolts or higher), 11 means
any change will be slow and ponderous but unstoppable once underway. Such decisions
simply cannot be undertaken lightly or implemented quickly. Further complicating
the shift, many of the changes that must be made are not technologically
feasible at this time.
And before building the Smart Grid, the electric industry must surmount three
obstacles of increasing difficulty and complexity, the most serious of which
is a result of the Law of Unintended Consequences.
Run to Failure
The first problem regards the nature of the longstanding relationship between
the American consumer and analog electrical power. Long profligate in terms
of waste, consumers have been willing to accept a lower degree of reliability
in exchange for cheap, abundant electricity, and they have yet to be convinced
it is in their interest to finance, via higher rates, the transition to digital-quality
power.
As in the case of water and sewage treatment, electricity is something that
is only noticed in its absence. With various crises and scandals in the industry,
as well as electrical rates having been on the rise as a result of increased
fuel costs,12 the
failure of deregulation to deliver on its promise of lower rates is fresh in
consumers' minds, so opposition to further increases to fund the shift to digital
power is understandable.
This makes the challenge facing the North American electrical industry one
of helping rate-payers recognize that the fundamental shift in emphasis from
the quantity of electricity produced to the quality of electricity
delivered will be to their benefit by eventually lowering rates while
improving reliability. Working in their favor is the strong growth of convenience-
and productivity-enhancing digital technology. From 2001 to 2005, residential
information technology use increased more than 250%,13 and
consumers are now more aware than ever that devices equipped with microprocessors
do not automatically resume operation after a power outage or spike but may
well be irreparably damaged. Consequently, the continued growth of microprocessor-enabled
devices in itself is serving to highlight the way the existing system is
not meeting the new demands of the Digital Age and will in time effect
the desired changes in consumer attitudes.
The second obstacle is simply the condition of the electrical grid itself.
The range of equipment nearing or beyond its projected service life is staggering:
70% of America's roughly 160,000 miles of high voltage transmission lines are
25 years or older-- as are 70% of the more than 63,000 transformers; further,
60% of the nearly 200,000 circuit breakers are at least 30 years old.14 Electro-mechanical
analog switches are still the norm system-wide, which comes as a bit of a surprise
considering the same kind of switch was discontinued from use in television
sets more than twenty years ago.15 Keeping
such increasingly obsolete equipment operating, not to mention finding spare
parts, has become such a major problem for the industry that investor-owned
utilities
(IOUs) rank service reliability and the condition of electric infrastructure
as their two top concerns, with an aging workforce being third.16
Clearly, the US cannot hope to maintain a leadership role in terms of technological
innovation hobbled by such an antiquated electrical grid. But even the effort
to establish new industry standards for increased efficiency and reliability,
which must be determined before the upgrade cycle can begin, have been so mired
in bureaucratic and political wrangling that fifteen states finally had to
sue the Department of Energy in order to get them to release the first new
standard since President Bush took office. Demonstrative of this bickering,
the compromise that eventually emerged as the new standard for transformer
performance is, even by government evaluation, inferior to other proposals
-- but it will show a return on investment in a shorter period of time.17
This is the kind of thinking that has led directly to the most difficult problem
needing to be resolved: repairing the damage wrought by the deregulation of
the wholesale electric energy market. Fifteen years of deregulation have contributed
significantly to the systematic neglect outlined in the preceding paragraphs. Ironically,
though deregulation coincided with the dawn of the Digital Age, it effectively
sacrificed reliability on the altar of profits.
Managing the electrical grid on the basis of short term profit (and often
substantial bonuses for corporate officers) rather than long term common good
has decimated the industry. Operational procedure became to run equipment until
it failed. Employment has been cut by 27%18 and
roughly 40% of the remaining skilled workforce will be eligible to retire within
about four years.19 Budgets
for maintenance and tree-trimming, the cause of one out of every six minutes
lost to power outage20 as
well as the cause of the massive 2003 blackout in the northeast, have been
slashed-- as have those for training programs. Entire system planning departments
have been dissolved, and US research and development lags that of most developed
countries by a considerable margin. 21
Deregulation inadvertently twisted the same interconnection between adjoining
systems that once fostered cooperation toward the common good of insuring reliability
into a mechanism for transferring electricity cross-country in a parody of
free market competition. It simultaneously grossly overloaded the transmission
system and discouraged investment in the expansion needed to alleviate the
very congestion it was causing.
Historically, 95% of power outages are transmission-related.22 Due
in large part to regulatory uncertainties regarding the return on investment
for the construction of new transmission lines, capital expenditures since
1990 have plummeted 30% at the same time electrical demand has increased 25%.23 Amortization,
or depreciation, rates have exceeded construction expenditures every year since
1995.24
Mandating that vertically integrated utilities facilitate the wholesale bulk
transfer of electricity between multi-regional markets by third parties has
resulted in the system being used daily in ways it was simply not designed
to function. For example, bulk power transactions on the Tennessee Valley Authority
system exploded from less than 20,000 in 1996 to more than 250,000 by the end
of 2001.25
Increased bulk power transactions have led to a substantial drop in capacity
margin, which is essentially the reserve of electrical power available to meet
changes in demand at any given time. From a range between 30-40% in the 1980's,
margin capacity has fallen to less than 16% in 2005,26 which
provides little room either for growth or to maneuver in times of crisis. Overloading
the transmission system has become the norm -- as has an increase in the number
of delivery constrictions that resulted in monetary loss, which are known as
Loading Relief Events:
Transmission Loading Relief Events, 1997-2004

Source: North American Reliability Council (NERC)
Nowhere is the failure to meet the demands of digital-quality power more evident
than in the explosion in so-called reliability costs. Electrical outage costs,
which have historically averaged about $20 billion per year, have been running
closer to $100 billion for the last few years,27 and
adding in newly significant momentary interruption costs, which necessitate
rebooting systems and thereby stalling work forces, brings the total loss to
in excess of $130 billion annually.28
As a result of all this, the US electrical industry now ranks among the worst
of developed nations in terms of service reliability. This has become such
an issue that one out of every six dollars invested in generation and delivery
equipment nationwide now goes for emergency backup power.29 More
startling was Allied Business Report's claim in 2000 that lack of confidence
in service reliability had driven so many companies to generating their own
power that it accounted for as much as 10% of total US generation -- and that
figure was set to grow 15% annually.30 This
sentiment is increasingly shared by US households: in 2006, 51% of those polled
were planning to purchase a backup generator in the next two years, and 47%
were very interested in having base load capacity in order to insure reliability
of supply.31
The cause and extent of such dissatisfaction is easily seen on the following
chart which shows the amount of time lost each year to system outages not
related to weather events:

Source: Apt, J. et al: Feb, 200632 Chart:
FRPitt/ETR
It is worth noting that where a resident of Japan loses power roughly once
every twenty years, Americans lose power once every nine months.33
Perhaps most troubling of all, deregulation with fixed retail pricing shifted
the risks to investors, where previously under rate-of-return regulation, the
risks were borne by ratepayers.34 This
shift combined with questionable management practices such as the aforementioned
have combined to effectively run many previously sound companies into the ground.
This is reflected in the median bond rating of investor-owned utilities, which
was "A" before deregulation, falling three grades to "BBB" in 2005. Credit
ratings for independent power producers and energy traders are considerably
worse. Combined, the drop in industry credit ratings translates into higher
financing costs going forward, which will certainly be passed on to consumers.
The following chart of credit-quality does not present the picture of a healthy
industry well-positioned to respond to what will undoubtedly be the largest
concerted restructuring in its history.

Sources: Brattle Group. 35 S&P
ratings as reported by Compustat: the sample consists
of 121 companies based on Compustat's GICS codes for utilities and multi-utilities.
The upshot of all of this is that deregulation didn't deliver lower prices,
just lower reliability.
Putting finance and marketing personnel in charge of a mechanism traditionally
operated by engineers has been akin to letting a bunch of hooligans (think
Enron) take the family car for a joyride: the surprise is not that the vehicle
breaks down but that it did not break sooner, which in itself is testimony
to the build quality of the grid.
...and on that sound foundation a new grid will rise
The build-out of an improved electrical grid and transition to the delivery
of digital-quality power is a foregone conclusion -- there is simply no going
back. Everyday modern conveniences as well as our continued ability to compete
globally dictate that it is not a question of if the build-out will occur but
simply its rate of development. But make no mistake: the value of electrical
service to users in the US is in the range of one hundred times prices paid,36 and
this relationship only stands to improve in the Digital Age, which means barring
utter economic collapse there is little chance of these changes not being implemented.
The forces for change are gathering momentum. In a pragmatic work-around,
equipment is being designed that will surpass whatever standards the DOE finally
endorses. Research, especially into open standards and so-called plug-and-play
flexibility, has been accelerating. And because deregulation can never be publicly
recognized as a failure, new legislation assuming the right of eminent domain
is attempting an end run around consumer advocacy groups, NIMBY and environmental
opposition by providing the power to designate National Transmission Corridors
that will speed transmission relief to the most congested areas, namely the
northeast metropolitan areas and southern California.37 More
will follow, thereby providing job security for a generation of lawyers.
But it also means electricity rates nationwide, which have long been considered
a bargain, are going to increase substantially in the years ahead. The rate
increases will initially be used to resolve transmission and decrepit equipment
problems. Subsequent increases will reflect the gradual but widespread adoption
of power electronics to upgrade the intelligence, reliability and capacity
of the grid. And by 2015 the generation capacity under construction now will
be coming online, insuring higher rates decades into the future.
Far from being depressed by the prospect of increased rates though, long term
investors should rejoice, for this process will literally take decades and
involve at least two overlapping, if not simultaneous, iterations before nearing
the next evolutionary plateau. As EPRI puts it, "The effort is not a centralized,
top-down makeover, but rather a distributed, bottom-up transformation created
by individual companies adding advanced capabilities piece by piece on the
existing grid."38
And that leads us to what tomorrow's grid will look like and how to profit
from the build-out -- without being duped by the boondoggles.
In the following sections for subscribers, the Emerging Trends Report continues
its assessment of the electrical industry with sections detailing:
- the next two iterations of the electrical grid-- and what may never
come to pass;
- developments in the search for the electric industry's Holy Grail, and
what finding it will mean;
- where to invest today, what to monitor for investing tomorrow, and what
to stay away from entirely;
- our investment approach and stock recommendations;
- and our substantial Sources/Further Reading section.
To purchase either this 30-page report or an annual subscription to our service,
please visit our website at www.emergingtrendsreport.com.
1 Basheda, G., Chupka,
M. W., Fox-Penner, P., Pfeifenberger, J.P., & Schumacher, A.: Why
Are Electricity Prices Increasing? An Industry-Wide Perspective; Brattle
Group/ the Edison Foundation: pp. 5, 6/ 2006. http://www.eei.org/industry_issues/electricity_policy/
state_and_local_policies/rising_electricity_costs/Brattle_Report.pdf
2 Mia, Irene & Dutta,
Soumitra: The Global Information Technology Report, 2006-7; World
Economic Forum/INSEAD: March 2007. http://www.weforum.org/pdf/gitr/rankings2007.pdf
3 Bond, Leonard J.: "Future
Energy Technologies and Employment Challenges"; Today's Engineer: November
2006. http://www.todaysengineer.org/2006/NOV/FUTURE_TECHNOLOGIES.ASP
4 Basheda, G., Chupka,
M. W., Fox-Penner, P., Pfeifenberger, J.P., & Schumacher, A.: Why
Are Electricity Prices Increasing? An Industry-Wide Perspective; Brattle
Group/ Edison Foundation: pp.25, June 2006. http://www.eei.org/industry_issues/electricity_policy/
state_and_local_policies/rising_electricity_costs/Brattle_Report.pdf
5 Gellings, C.W. & Yeger,
K.E.: "Transforming the Electric Infrastructure"; Physics Today: pp. 49, December
2004. http://www.physicstoday.org/pt/vol-57/iss-12/p45.html
6 Economist (not attributed): "The
gigabyte guzzlers"; economist.com: 29.01.2007. http://www.economist.com/world/international/PrinterFriendly.cfm?story_id=8615835
7 Gilder, George: "The
Information Factories"; Wired Magazine: 16.10.2006. http://www.wired.com/wired/archive/14.10/cloudware_pr.html
8 Ibid.
9 Center for Smart Energy
(CSE), "The Emerging Smart Grid: Investment and Entrepreneurial Potential in
the Electric Power Grid of the Future"; CSE: pp.2, October 2005.
10 Basheda, G., Chupka,
M. W., Fox-Penner, P., Pfeifenberger, J.P., & Schumacher, A.: Why
Are Electricity Prices Increasing? An Industry-Wide Perspective; Brattle
Group/ Edison Foundation: pp.49-50, June 2006. http://www.eei.org/industry_issues/electricity_policy/
state_and_local_policies/rising_electricity_costs/Brattle_Report.pdf
11 Department of Energy: "Gridworks";
Office of Electricity & Energy Reliability: 2005. http://www.energetics.com/gridworks/index.html
12 Energy Information
Agency (EIA): "Electric Power Annual with data for 2005"; EIA/DOE: revised
09.11.2006. http://www.eia.doe.gov/cneaf/electricity/epa/epa_sum.html
13 TIAX, LLC: Residential
Information Technology Energy Consumption in 2005 and 2010; prepared
for the the U.S. Department of Energy: pps.1-2, March 2006.
14 Anderson, K.L., Furey,
D., & Omar, K.: "Frayed Wires: U.S. Transmission System Shows Its Age";
Fitch Ratings: 25.10.2006. http://www.fitchratings.com/corporate/login/
setSessionVars.cfm?userIdParam=karnspicuous&SCRIPT_NAME=/ corporate/reports/report_frame.cfm&QUERY_STRING=rpt_id=299408
15 Basheda, G., Chupka,
M. W., Fox-Penner, P., Pfeifenberger, J.P., & Schumacher, A.: Why
Are Electricity Prices Increasing? An Industry-Wide Perspective; Brattle
Group/ Edison Foundation: pp.58, June 2006. http://www.eei.org/industry_issues/electricity_policy/
state_and_local_policies/rising_electricity_costs/Brattle_Report.pdf
16 Black & Veatch: "2006
Strategic Directions in the Electric Utility Industry"; Black & Veatch:
06.11.2006. http://www.bv.com/
17 Clayton, Mark: "Bush's
first energy rule: efficient enough?"; Christian Science Monitor: 25.08.2006. http://www.csmonitor.com/2006/0825/p03s03-usgn.html
18 Casazza, Jack: "Electric
Power Deregulation -- A Bad Idea?" Today's Engineer: May 2005. http://www.todaysengineer.org/2005/May/deregulation.asp
19 Bond, Leonard J.: "Future
Energy Technologies and Employment Challenges"; Today's Engineer: November
2006. http://www.todaysengineer.org/2006/NOV/FUTURE_TECHNOLOGIES.ASP
20 Blumsack, S.A., Apt,
J., & Lave, L.B.: "Lessons from the Failure of the U.S. Electricity Restructuring";
Carnegie Mellon Electricity Industry Center: CEIC-05-09 September 2005. http://web.mit.edu/ipc/sloan05/Electricity_Restructuring.pdf
21 Casazza, Jack: "Electric
Power Deregulation -- A Bad Idea?" Today's Engineer: May 2005. http://www.todaysengineer.org/2005/May/deregulation.asp
22 Ginsburg, Janet: "Reinventing
the Power Grid"; BusinessWeek.com: 26.02.2001. http://www.businessweek.com/magazine/content/01_09/b3721086.htm?chan=search
23 Department of Energy: "Gridworks";
Office of Electricity & Energy Reliability: 2005. http://www.energetics.com/gridworks/index.html
24 Amin, Massoud: "Powering
the 21st Century: We can -- and must -- modernize the grid"; Today's Engineer:
Mar 2005. http://www.todaysengineer.org/2005/Mar/grid.asp
25 Department of Energy: "Gridworks";
Office of Electricity & Energy Reliability: 2005. http://www.energetics.com/gridworks/index.html
26 Energy Information
Agency (EIA): "Electric Power Annual with data for 2005"; EIA/DOE: revised
09.11.2006. http://www.eia.doe.gov/cneaf/electricity/epa/epa_sum.html
27 Carey, John & Aston,
Adam: "How to Fix the Electrical Grid"; BusinessWeek.com: 22.08.2003. http://www.businessweek.com/technology/content/aug2003/tc20030822_5187_tc119.htm?chan=search
28 Bansari Saha (ICF
Consulting): Value of A Reliable Supply of Electricity; Prepared
for the Edison Electric Institute: pp. 18, December 2005.
29 Apt, J., Lave, L.B.& Morgan,
M.G.: "Can the U.S. have reliable electricity?"; Carnegie Mellon Electricity
Industry Center Working Paper CEIC-06-02: February, 2006. https://wpweb2.tepper.cmu.edu/ceic/pdfs/CEIC_06_02.pdf
30 Jaffe, Sam: "DIY
Power Generates Some Buzz"; BusinessWeek.com: 06.12.2000. http://www.businessweek.com/bwdaily/dnflash/dec2000/nf2000126_624.htm?chan=search
31 Utility Automation & Engineering
T&D (not attributed): "Distributed energy technology interest surging:
Energy insights"; Utility Automation & Engineering T&D: 17.08.2006. http://uaelp.pennnet.com/Articles/Article_Display.cfm?ARTICLE_ID=266490&p=22&pc=ENL
32 Apt, J., Lave, L.B.& Morgan,
M.G.: "Can the U.S. have reliable electricity?"; Carnegie Mellon Electricity
Industry Center Working Paper CEIC-06-02: February, 2006. https://wpweb2.tepper.cmu.edu/ceic/pdfs/CEIC_06_02.pdf
33 Ibid.
34 Murphy, Peter: "Power
Rating Trends"; Standard & Poor's presentation at the JP Morgan Public
Power Conference, New York: 07.10.2004.
35 Basheda, G., Chupka,
M. W., Fox-Penner, P., Pfeifenberger, J.P., & Schumacher, A.: Why
Are Electricity Prices Increasing? An Industry-Wide Perspective; Brattle
Group/ Edison Foundation: pp.80, June 2006. http://www.eei.org/industry_issues/electricity_policy/
state_and_local_policies/rising_electricity_costs/Brattle_Report.pdf
36 Bansari Saha (ICF
Consulting): Value of A Reliable Supply of Electricity; Prepared
for the Edison Electric Institute: pp. 18, December 2005
37 Department of Energy
(DOE): National Electric Transmission Congestion Study; DOE:
August, 2006. http://www.oe.energy.gov/DocumentsandMedia/Congestion_Study_2006-10.3.pdf
38 Haas, Paul: "Intelligrid";
EPRI Journal: pps. 26-32, Fall 2005. http://www.google.com.au/search?sourceid= navclient&aq=t&ie=UTF-8&rlz=1T4GFRC_enAU214AU214&q=EPRI+Journal%3a+Intelligrid
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