I
I
Control Number: 32766
IllIIll811 1 II I I
Item Number: 1237
Addendum StartPage: 0
SOAH DOCKET NO. 473-06-2536
DOCKET NO. 32766
APPLICATION OF SOUTHWESTERN 8
PUBLIC SERVICE COMPANY FOR: 8
(1)AUTHORITY
TO
CHANGE 8
RATES; (2) RECONCILIATION OF 3
ITS FUEL COSTS FOR 2004 AND 8
2005; (3)AUTHORITY TO REVISE 8
THE SEMI-ANNUAL FORMULAE 8
ORIGINALLY
APPROVED
IN 8
DOCKET N0.27751
USED TO tj
ADJUST ITS FUEL FACTORS; AND 8
(4) RELATED RELIEF
8
BEFORE THE STATE OFFICE
OF
ADMINISTRATIVE H E W N G S
1
t
h>
h
L,
P-"
t
5-4
5-
- P "
r-
REBUTTAL TESTIMONY
of
RAMON NADIRA
on behalf of
SOUTHWESTERN PUBLIC SERVICE COMPANY
(Revenue Requiremen0
(Filename: 7K7.doc; Total Pages: 25)
rc .
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I
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r, -*
Table of Contents
Glossary of Acronyms and Defined Terms ........................................................................ 2
List of Attachments.............................................................................................................
3
I.
INTRODUCTION AND QUALIFICATIONS ...................................................... 4
11.
ASSIGNMENT .......................................................................................................
8
111.
REVIEW OF SPS LOSS STUDY .......................................................................... 9
IV. UNDETERMINED LOSSES ............................................................................... 14
V.
RECOMMENDATION ........................................................................................ 16
VI.
CONCLUSION..................................................................................................... 17
AFFIDAVIT ..................................................................................................................... 18
CERTIFICATE OF SERVICE ......................................................................................... 19
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Page I
Glossary of Acronyms and Defined Terms
AcronymDefined Term
Meaning
Commission
Public Utility Commission of Texas
Loss Study
Transmission and Distribution System Loss
Evaluation Study (October 2004 through
September 2005)
Siemens PTI
Siemens Power Transmission & Distribution,
Inc., Power Technologies International
SPS
southwestern Public Service Company
Target Value
Total Losses from Appendix A of Loss Study
Test Year
October 1,2004 through September 30,2005
Xcel Energy
Xcel Energy Inc.
Nadira Rebuttal - Revenue Requirement
Page 2
List of Attachments
Attachment
Description
RN-R1
Resume of Ram6n Nadira
(Filename: RN-R1 .doc)
RN-R2
List of Publications by Ram6n Nadira (and coauthors) on the subject of loss evaluations
(Filename: RN-W.doc)
RN-R3
Derivation of Total Losses Based on
Operational Data
(Filename: RN-R3.doc)
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Page 3
REBUTTAL TESTIMONY OF
RAMON NADIR4
1
2
3
I.
INTRODUCTION AND QUALIFICATIONS
4
Q.
PLEASE STATE YOUR NAME AND BUSINESS ADDRESS.
5
A.
My name is Ram6n Nadira.
6
My business address is 15990 North Barker’s
Landing Rd, Suite 175, Houston, Texas, 77079.
7
Q.
BY WHOM ARE YOU EMPLOYED AND IN WHAT POSITION?
8
A.
I am employed by Siemens Power Transmission & Distribution, Inc., Power
9
10
Technologies International (Siemens PTI), as a Senior Manager, Consulting.
Q.
11
12
TESTIMONY?
A.
13
14
I am submitting this rebuttal testimony on behalf of Southwestern Public Service
Company (SPS), a wholly owned subsidiary of Xcel Energy Inc. (Xcel Energy).
Q.
15
16
ON WHOSE BEHALF ARE YOU SUBMITTING THIS REBUTTAL
PLEASE BRIEFLY OUTLINE YOUR RESPONSIBILITIES AS SENIOR
MANAGER, CONSULTING OF SIEMENS PTI.
A.
I currently lead the consulting practice of the Houston office of Siemens PTI.
17
This practice provides business management solutions for the power delivery
18
industry worldwide. The services include system simulation studies, independent
19
technical reviews (for buyers or sellers), due diligence analyses, economic and
20
financial analysis, including the design of electricity tariffs, regulatory support,
21
privatization support, and commercial, financial, andor operational improvement
22
studies. The practice has conductedis conducting assignments in many countries
23
around the world, including the United States.
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Page 4
1
Q.
PLEASE DESCRIBE YOUR EDUCATIONAL BACKGROUND.
2
A.
I obtained the degree of Electrical Engineer (with highest honors) with
3
specialization in electric power systems in 1979 from Universidad Sim6n Bolivar
4
in Caracas, Venezuela. I also received a Master of Science degree in electrical
5
engineering and applied physics in 1983 and the Ph.D. (Doctor of Philosophy)
6
degree in systems engineering in 1989, both from Case Western Reserve
7
University in Cleveland, Ohio, USA.
8
Q.
9
10
PLEASE DESCRIBE YOUR EXPERIENCE IN THE ENERGY AND UTILITY
INDUSTRIES.
A.
I am a specialist in utility operations, in electricity transmission & distribution
11
planning, and in power sector restructuring. For over 25 years, I have provided
12
technical and strategic consulting services to utilities, governments, regulators,
13
independent project developers, and the financial community, in domestic as well
14
as international assignments in the energy industry. I contribute a rigorous
15
academic training in engineering, physics, operations research, and computer
16
sciences with an extensive knowledge and significant hands-on experience in the
17
technical, economic, and regulatory aspects of electric power systems. I have
18
worked throughout the world on a number of assignments in the energy sector.
19
For example, I have been responsible for the performance of technical due
20
diligence analyses of over 25 electricity transmission and distribution companies
21
in about 11 countries. These assignments typically involve a technical review and
22
assessment of the companies’ performance including that related to technical and
23
non-technical losses. More details are provided in Attachment RN-R1.
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Page 5
1
I contribute significant experience in the subject of determining technical
2
and non-technical losses in electric power systems. A list of my publications on
3
this subject is included in Attachment RN-R2. For example, I was the lead
4
investigator on a project sponsored by the Electric Power Research Institute on
5
the subject of Bulk Transmission System Loss Analysis. I have participated
6
and/or been responsible for approximately 25 engagements that have involved
7
calculating losses (both technical and non-technical) in transmission and/or
8
distribution systems in the United States and elsewhere. Examples of my recent
9
engagements include a top-down (i.e., benchmarking) evaluation of the electrical
10
losses experienced by the electricity system of Belize for regulatory (i.e., tariff-
11
setting) purposes, and assessing the technical and non-technical losses of the
12
power delivery systems in Bolivia, Brazil, Chile, El Salvador, Tanzania, Turkey,
13
and the United Kingdom.
14
Q.
15
16
PLEASE DESCRIBE SIEMENS PTI’S ACTIVITIES IN ENERGY AND
UTILITY ENGAGEMENTS.
A.
Siemens PTI is an international provider of advanced technical consulting
17
services, world-standard analytical software programs, and professional education
18
in power systems engineering. The range of services and fields of activity of
19
Siemens PTI include engineering studies, expert testimony, advanced research
20
and development, software implementation, plant testing and measurements, and
21
training and educational programs, for clients in the electricity industry. Siemens
22
PTI has conducted numerous loss studies for utilities in the United States and
23
elsewhere.
~~~
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Page 6
1
Founded in 1969, Siemens PTI has conducted business in over 123
countries and has served more than 1,200 clients, including electric utilities,
government agencies, power generators, power marketers, manufacturers, and
architect-engineers.
5
Q.
RELATED TO YOUR AREA OF TESTIMONY?
6
7
ARE YOU A MEMBER OF ANY PROFESSIONAL ORGANIZATIONS
A.
8
Yes. I am a senior member (No. 04018115) of the Institute of Electrical and
Electronics Engineers.
9
Q.
DO YOU HAVE A PROFESSIONAL LICENSE?
10
A.
No.
11
Q.
HAVE
12
13
YOU
PREVIOUSLY
FILED
TESTIMONY
BEFORE
ANY
REGULATORY COMMISSIONS?
A.
No.
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Page 7
1
2
11.
Q.
3
4
ASSIGNMENT
PLEASE DESCRIBE YOUR ACTIVITIES IN RELATION TO THIS
ASSIGNMENT.
A.
I have been retained by SPS to offer an opinion regarding the methodology and
5
analyses employed in preparing SPS’s Transmission and Distribution System
6
Loss Evaluation Study (the Loss Study) and also to respond to certain objections
7
to the Loss Study raised in the testimony of Intervenor Witnesses Randall J.
8
Falkenberg (representing the Office of Public Utility Counsel), J e w Pollock
9
(representing Texas Industrial Electric Consumers), and Scott Norwood
10
11
(representing the Alliance of Xcel Municipalities).
Q.
12
13
WHAT DOCUMENTS HAVE YOU RELIED ON OR USED IN PREPARING
THIS TESTIMONY?
A.
I have reviewed and relied on the Direct Testimony of SPS witnesses David T.
14
Hudson, John S. Fulton, Michael A. Laros, Intervenor Witnesses Falkenberg,
15
Pollock, and Nonvood concerning the Loss Study, and data contained in the
16
Platts’ POWERDat data base (August 2006 release, fi-om Platts, a unit of The
17
McGraw-Hill Companies, Inc.).
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Page 8
1
2
111.
Q.
PLEASE DESCRIBE YOUR ACTIVITIES IN RELATION TO YOUR
3
4
REVIEW OF SPS LOSS STUDY
ASSIGNMENT IN THIS DOCKET.
I have reviewed the 1995, 1999, and the current SPS transmission and distribution
A.
\
5
loss studies. I have read the various intervenor testimonies concerning the Loss
Based on these documents, I have determined the best means for
6
Study.
7
evaluating intervenor objections would be to independently assess the accuracy of
8
SPS’s calculations of the target value of losses in the Loss Study.
9
Q.
HAVE YOU PREPARED AN ANALYSIS TO ASSESS THE ACCURACY OF
10
SPS’S CALCULATIONS OF THE TARGET VALUE OF LOSSES IN THE
11
LOSS STUDY?
12
A.
Yes. The Target Value for the current Loss Study is 1,862,070 MWh and is found
13
in Appendix A of the Loss Study, filed as Attachment JSF-1 to the Direct
14
Testimony of John S. Fulton. I conducted my analysis based on operational
15
(instead of accounting) data. As noted in Mr. Fulton’s Direct Testimony (at page
16
lo), the total loss value in Appendix A of the Loss Study was derived from
17
accounting data. In order to verify the accuracy of this derivation, I conducted a
18
separate analysis based exclusively on operational data as provided by SPS. This
19
analysis is shown in Attachment RN-R3, and is summarized in Table 1 below.
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Page 9
1
2
Table 1
Derivation of Losses Based on Operational Data
In
3,294,392
435,590
I
1,523,835
47,778
1
3
4
Q.
TABLE 1.
5
6
PLEASE DESCRIBE THE RESULTS OF YOUR ANALYSIS AS SHOWN IN
A.
The approach in Table 1 is an input-output (or net) method, which calculates
7
losses as the difference between the total in-system generation (the input) minus
8
the sum of the in-system sales and the net MWh flows at the system boundaries
9
(the outputs.) The total sales figure in Appendix A of the Loss Study includes the
10
line item referred to as “WTMPA Generation” above; thus, it has been subtracted
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Page 10
1
from the total sales (together with all inter-system sales) to arrive at the total in-
2
system sales figure. This is why we have subtracted it from the total sales
3
(together with all inter-system sales) to arrive at the total in-system sales figure.
4
The input-output approach (which I consider more accurate than the
5
accountingkettlement approach) yields total losses in an amount of
6
1,836,909 MWh. This value is only 1.5 percent smaller than estimated in the
7
Loss Study. As a result, the total loss value in Appendix A of the Loss Study as
8
derived from accounting data has been accurately determined.
9
Q.
WHAT IS YOUR OPINION REGARDING INTERVENOR WITNESS
10
NORWOOD’S CLAIM THAT THE LOSS STUDY SHOWS ABNORMALLY
11
LARGE ENERGY LOSSES?
12
A.
My opinion is that the target value of energy losses as reported in the Loss Study
13
is within the expected range for a system of the size and characteristics of SPS.
14
As shown in Table 2 below, total energy losses for the SPS system for the Test
15
Year were 7.05 percent and 6.58 percent of total energy sales and total available
16
energy resources to supply load, respectively.
17
18
Table 2
Resources, Sales, and Total Energy Losses for the Test Year
~~
~
~~
Total Available Energy Resources
Total Energy Sales
Total Energy Losses
Total Energy LossesEnergy Sales
Total Energy Losses/Available Energy Resources
28,287,833 MWh
26,425,764 MWh
1,862,070 MWh
7.05%
6.58%
19
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Page 11
1
WHAT IS THE EXPECTED RANGE FOR TOTAL ENERGY LOSSES FOR A
Q.
2
3
COMPARABLE SYSTEM TO SPS’S SYSTEM?
A.
Figure 1 below shows the energy loss performance for a number of utilities in the
4
U.S. (some of which are in Texas). This figure was developed from information
5
available in Platts’ POWERDat data base (August 2006 release, fiom Platts, a unit
6
of The McGraw-Hill Companies, Inc.), and displays the ratio of total energy
7
losses to available energy resources to supply load. Defining the expected range
8
as the interval spanning the second and third quartiles, we observe fiom Figure 1
9
that the expected range is between 4.2 percent and 6.8 percent. As shown in
10
Table 1 (above), the corresponding losses for SPS for the Test Year were 6.58
11
percent, and therefore were within the expected range, albeit on the high side of
12
13
this range.
First Quartile
Second Quartile
Fourth Quartile
Third Quartile
I
1
30%
25%
g 20%
0
2
15%
~
SPS Test Year
5%
Q%
14
15
Figure 1. Comparative Analysis of Total Energy Losses.
~
Nadira Rebuttal - Revenue Requirement
~~~
Page 12
1
Q.
HOW WERE PEER GROUP UTILITIES SELECTED?
2
A.
As the peer group, I selected U.S. utilities with gross transmission assets and
3
gross distribution assets per customer in the range of $1,000 and $2,500. In my
4
opinion, this makes a reasonable peer group. Some of the utilities included in this
5
group are AEP Texas North Co., Georgia Power Co., Ohio Power Co., and Utah
6
Power & Light Co.
7
Q.
WHY DID YOU SELECT GROSS TRANSMISSION AND GROSS
8
DISTRBUTION ASSETS AS THE CLASSIFICATION PARAMETERS FOR
9
THE PEER GROUP?
10
A.
11
12
Because in my experience, gross transmission and distribution asset figures
correlate well with system loss ratios.
Q.
IN YOUR OPINION, IS IT REASONABLE FOR THE TOTAL SPS SYSTEM
13
LOSSES TO HAVE INCREASED BETWEEN THE PREVIOUS LOSS STUDY
14
AND THE CURRENT ON@?
15
A.
Yes. Utilization of the SPS system appears to have increased between the two
16
studies. In the first place, total energy sales have increased approximately 16
17
percent (from 22,821,769 MWh to 26,425,764 MWh).
18
system additions (as shown in Laros Direct at page 41) have largely remained
19
below the Texas and United States averages.
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Further, distribution
Page 13
1
2
IV.
Q*
UNDETERMINED LOSSES
INTERVENOR WITNESS NORWOOD CLAIMS THAT THE SIGNIFICANT
3
INCREASE IN LOSSES ON THE SPS SYSTEM CAN BE ATTRIBUTED TO
4
AN INCREASE IN UNDETERMINABLE LOSSES. DO YOU AGREE WITH
5
THIS ASSERTION?
6
A.
I disagree with Mr. Norwood’s assertion. First of all, the losses referred to by Mr.
7
Norwood are not “undeterminable,” they are instead “undetermined” by the
8
engineering loss study. Or more precisely, they are “unexplained”, since the term
9
“undeterminable” appears to imply that those losses are somehow immeasurable.
10
Second, when calculating losses on a historical basis (i.e., for years past), the
11
accounting losses are generally more accurate than those determined via
12
engineering calculations. This is simply because the engineering methods are
13
based on simplifylng assumptions, andor are unable to model all of the elements
14
of the losses (such as those associated with non-technical losses). All of these
15
factors contribute to the undetermined losses. Incidentally, by basing the loss
16
factors on a whole year’s worth of history, the impact of some of the factors
17
mentioned by Mr. Norwood (such as out-of-period accounting adjustments and
18
lags between metering and recording) are largely neutralized.
19
Q.
IF THE UNDETERMINED LOSSES ARE NOT THE KEY, WHAT SHOULD
20
THE PUBLIC UTILITY COMMISSION OF TEXAS (COMMISSION) BE
21
FOCUSING ON?
22
23
A.
The Commission should focus on the total energy losses incurred by SPS in the
Test Year. And I believe that the Target Value of energy losses as reported in the
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Page 14
Loss Study is an accurate estimation of the total energy losses incurred by SPS,
since the input-output (net) approach I utilized and the accounting approach used
in the Loss Study yield virtually identical results.
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Page 15
1
2
V.
Q.
RECOMMENDATION
BASED ON YOUR REVIEW OF THE INTERVENOR WITNESSES’
3
TESTIMONY, AND YOUR INDEPENDENT ANALYSIS OF THE LOSS
4
STUDY, WHAT IS YOUR OPINION REGARDING INTERVENORS’
5
RECOMMENDATIONS THAT THE COMMISSION SHOULD REJECT THE
6
LOSS STUDY IN THIS DOCKET?
7
A.
I disagree with the recommendation. In my opinion, the methodology utilized in
8
the Loss Study is rigorous and proven and has produced results consistent with
9
other company’s reported losses, as I have described above. Further, my separate
10
analysis, using operating data, calculates target energy losses within 1.5 percent of
11
the filed Loss Study. Therefore, the Commission should find that the intervenors’
12
attacks on the Loss Study are without merit.
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Page 16
VI.
1
2
Q.
CONCLUSION
WERE ATTACHMENTS RN-1, RN-2, AND RN-3 PREPARED BY YOU OR
UNDER YOUR SUPERVISION AND CONTROL?
3
4
A.
Yes.
5
Q.
DOES THIS CONCLUDE YOUR REBUTTAL TESTIMONY?
6
A.
Yes.
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Page 17
AFFIDAVIT
STATE OF
Aw
COUNTY OF
I
RAMON NADIRA, being first duly sworn, deposes and states that he is the witness
identified in the foregoing prepared testimony, that he has read the testimony and is
familiar with its contents, and that the facts set forth are true.
RAMbN NADIRA
Subscribed and sworn to before me this /&day
of January 2007 by RAMON
NADIRA.
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Page 18
CERTIFICATE OF SERVICE
e
I certify that on the 2
day of January 2007, a true and correct copy of the
foregoing instrument was served on all parties of record by hand delivery, Federal
Express, certified mail, or facsimile transmission.
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Page 19
Attachment RN-Rl I
Page 1 of 4
RAMON NADIRA
Senior Manager, Consulting
Siemens Power Transmission & Distribution, Inc.
Power Technologies International (Siemens PTI)
Dr. Ram6n Nadira received the degree of Electrical Engineer (with highest honors) with
specialization in electric power systems in 1979 from Universidad Simon Bolivar in Caracas,
Venezuela. He also received a Master of Science degree in electrical engineering and applied physics
in 1983 and the Ph.D. degree in systems engineering in 1989, both from Case Western Reserve
University in Cleveland, Ohio, USA.
He is a specialist in power sector restructuring, in utility operations, and in electricity transmission &
distribution planning. For over 25 years, Dr.Nadira has provided technical and strategic consulting
services to utilities, governments, regulators, independent project developers, and the financial
community, in domestic as well as international assignments in the energy industry. He combines a
rigorous academic training in engineering, physics, operations research, and computer sciences with
an extensive knowledge and significant hands-on experience in the technical, economic, and
regulatory aspects of electric power systems.
Dr. Nadira has worked throughout the world and for such multilateral institutions as the World Bank
and the Inter-American Development Bank. He has servedis currently serving in the role of Project
Director on a number of assignments in the energy sector in numerous countries around the world.
He has been responsible for the performance of technical due diligence analyses of over 25
electricity transmission and distribution companies in about 11 countries. These assignments
typically involve: (i) a technical review and assessment of the companies’ electrical and related
assets, as well as of their performance, and operations and maintenance practices, (ii) the
development of forecasts of annual capital investments required to both meet fbture load and perform
to established quality of service standards, (iii) the development of economic/financial models with
forecasts of operating revenues and costs, (iv) a review of the relevant portions of the applicable
contracts and agreements, as needed for the evaluation and discussion of the pertinent economic and
technical issues associated with this project and (iv) the provision of general transaction support,
such as that relative to the segmentation of vertically integrated utilities into separate generation,
transmission and distribution companies.
Dr. Nadira currently leads the consulting practice of the Houston office of Siemens PTI. This
practice provides business management solutions for the power delivery industry worldwide. The
services include independent technical reviews (for buyers or sellers), due diligence analyses,
economic and financial analysis, including the design of electricity tariffs, regulatory support,
privatization support, and commercial, financial, and/or operational improvement studies.
He has worked in the following countries: Argentina, Belize, Bolivia, Brazil, Canada, Chad, Chile,
Colombia, Costa Rica, El Salvador, Guatemala, Honduras, India, Indonesia, Malawi, Malaysia,
Mexico, Nicaragua, Panama, Peru, Philippines, South Africa, Tanzania, The Gambia, Turkey,
Uganda, United Kingdom, Uruguay, USA, and Venezuela. He speaks English and Spanish (mother
tongue), and has working knowledge of Arabic, Portuguese, and Italian.
From 1992 through 1996, Dr. Nadira was a Senior Engineer with PTI. First, he joined the Reliability
and Security unit, where he participated in studies related to the optimal planning of reactive
09-06
20
Attachment RN-R1
Page 2 of 4
compensation resources and the determination of transfer capability limits in power systems. He was
also responsible for overseeing the development of a security constrained economic dispatch
application function which has been fdly integrated within PTI’s contingency analysis program,
TPLAN.
In January of 1994, Dr. Nadira became a member of the new Competitive Resource Planning unit at
PTI. The unit specialized in providing coordinated planning solutions to the then emerging power
system planning and operations challenges in an environment characterized by increased
competition.
From 1991 to 1992, Dr. Nadira was a private consultant conducting research and development
projects in ’the areas of optimal restoration control strategies for electric power systems, and
evaluation of capacity and energy losses in power transmission systems.
He was an Associate Professor (1 989-1990), and an Assistant Professor (I 979-1980), in the
Department of Energy Conversion and Delivery at Universidad Sim6n Bolivar in Caracas,
Venezuela. During his tenure there, he taught graduate and undergraduate courses in power system
analysis, optimal power flow, and control centers. He also advised on a number of graduate and
undergraduate theses and class projects. He has also been the instructor of numerous Siemens PTI
short courses presented to domestic as well as international audiences. These include courses on
power system planning, least-cost planning techniques, optimal power flow, and transmission access
and power wheeling.
From 1983 to 1989 Dr. Nadira was a Senior Research Engineer in the Information and Control
Systems division of Scientific Systems, Inc., Cambridge, Massachusetts, where he performed and
supervised studies in several areas including: (i) optimization of reactive volt ampere (VAR) sources
in power system planning, (ii) analysis of bulk power tkinsmission system losses, (iii) estimation of
end-use power system load shapes, and (iv) analysis, planning, optimization and control of energy
systems such as electric arc furnaces and flexible robotic manipulators.
Dr. Nadira has published over 25 papers in refereed journals, and over 20 in conference proceedings.
He has received a number of honors and awards, including the “Antonio Jose de Sucre” Decoration
(in 1980), granted by the Government of Venezuela, and the “Best Graduating Electrical Engineer in
Venezuela” award, presented in 1979 by the Venezuelan Association of Electrical and Mechanical
Engineers.
-
09-06
21
RAMON NADIRA,
PKD.
Attachment RN-R1
Page 3 of 4
Technical Publications
1. “Digital
Modeling
of
Synchronous
Machines,”
Undergraduate Thesis, Universidad Sim6n Bolivar, Caracas,
Venezuela, 1979.
2. “Optimal Power Flows” (in Spanish), 3rd Venezuelan
Symposium on Energy Generation and Delivery, Maracaibo,
Venezuela, May, 1982, (co-authors, A.J. Urdaneta and J.C.
Ledezma).
3. “A Practical OveMew of the Application of State
Estimation Techniques in Power Systems,” 1983 World
Conference on Systems, Caracas, Venezuela, July, (coauthors, J.F. BermGda, A.J. Urdaneta, and P.C. Paiva).
4. “Optimal Real Power Flow: General Considerations,” 1983
World Conference on Systems, Caracas, Venezuela, July,
(co-authors, A.J. Urdaneta, J.F. BmGdez, and P.C. Paiva).
5. “Optimal Reactive Power Flows: A Review of Solution
Methodologies,” 1983 World Conference on Systems,
Caracas, Venezuela, July, (co-authors, A.J. Urdaneta and
J.F. BermJdez).
6. “Optimal Reactive Power Flows for Power System
Operation,” Master of Science Thesis, Case Western
Reserve University, Cleveland, Ohio, USA, 1983.
7. “Control of Lightweight Flexible Manipulators: A
Feasibility Study,” 1984 Automatic Conlrol Conference,
San Diego, California, pp. 1209-1216, (co-authors, P.B.
Usoro and S.S. Mahil).
8. “Analysis of Lightweight Flexible Manipulator Dynamics,”
1984 lnternational Computers in Engineering Conference,
Las Vegas, Nevada, pp. 167-174, (co-author, P.B. Usoro).
9. “‘A Finite Elementnagrange Approach to Modeling
Part 1: A One-Link
Lightweight Flexible Manipulators
System, Part 11: A Two-Link System,” in Sensors and
Controlsfor Automated Manufacturing and Robotics, ed. by
K. Stelson and L. Sweet, ASME, New York, NY, 1984, pp.
215-252, (co-authors, P.B. Usoro and S.S. Mahil).
IO. “Modeling and Simulation of an HVAC Air Handler Unit,”
1985 SCS Conference on Simulaiors, ed. by J.S. Gardenier,
Simulation Sm’es, Vol. 16, No. 1, March, pp. 88-93, (coauthors, P.B. Usoro and s. Negahdaripour).
1 I. “A Hierarchical Approach to Reactive Volt Ampere (VAR)
Optimization in System Planning,” JEEE Trans. on PAS,
Vol. PAS-104, NO. 8, August, 1985, pp. 2051-2057, (COauthors, W.M. Lebow,R. Rouhani,P.B. Usoro, R.K. Mehra,
D.W. Sobieski, M.K. Pal, and M.P. Bhavaraju).
12. “Modeling and Simulation of a Steelmaking Electric Arc
Furnace,‘’ 1986 SCS Simulators Conference (Simularors 114,
ed. by B.T. Fairchild, Simulation Sm’es, Vol. 17, No. 2,
April, pp. 158-163, (co-author, P.B. Usoro).
13. “Optimal Reactive Power Flows“ (in Spanish), 4rh
Venezuelan Symposium on Energy Generation and Delivery,
Venezuela, May, 1986, (co-authors, A.J. Urdaneta, F.
Matheus, and J.C. Ledezma).
. 14. “A
Finite ElementILagrange Approach to Modeling
Lightweight Flexible Manipulators,” ASME Journal of
Dynamic Systems, Measurement, and Control, Vol. 108,
No. 3, September, 1986, pp- 198-205, (co-authors, P.B.
Usoro and S.S. Mahil).
15. “A Decomposition Approach to Preventive Planning of
Reactive Volt Ampere (VAR) Source Expansion,” lEEE
Trans. on Power Systems, Vol. PWRS-2, No. 1, February,
1987, pp. 72-77, (co-authors, WM. Lebow and P.B. Usoro).
16. “Modeling and Simulation of an HVAC Refrigeration
System,” 1987 SCS Simulators Conference (Simulators IV),
ed. by B.T. Fairchild, Simulation Smk, Vol. 18, No. 4,
October, pp. 175-181, (co-author, 1.C. Schick).
17. “Self-Adjusting Model Algorithmic Control of a ThreePhase Electric Arc Furnace,” 1988 American Control
Conference, Atlanta, Georgia, June, (co-author, P.B. Usoro).
18. “Optimal Coordination of Directional Overcutrent Relays in
Interconnected Power Systems,” IEEE Trans. on Power
Delivev, Vol. 3, No. 3, July, 1988, pp. 903-911, (coauthors, A.J. Urdaneta and L.G. P& Jimhez).
19. “Self-Adjusting Model Algorithmic Control of a ThreePhase Electric Arc Furnace,” ASME Journal of Dynamic
Systems, Measurement, and Control, Vol. I IO, No. 4,
December, 1988, pp. 361-366, (co-author, P.B. Usoro).
20. “A Hierarchical lnteractive Approach to Electric Power
System Restoration,” Ph.D. Dissertation, Case Western
Reserve University, Clevel&nd, Ohio, USA, 1989.
21. “Optimal Coordination of Directional Overcurrent Relays in
Interconnected Power Systems using Linear Programming
Techniques” (in Spanish), 5th Venezuelan Symposium on
Energy Generation and Delivery, Porlamar, Venezuela,
November, 1989, (co-authors, A.J. Urdaneta, L.G. Pkrez
Jimhez, S.E. Mhrquez, and H. Restrepo).
22. “Interconnected Power System Loss Analysis,“ 1990
American Power Conference, Chicago, Illinois, A p d , (coauthors, D. Maratukulam, E.P. Weber, and C.L. Thomas.)
23. “An Approach for Explicitly Modeling the Protective
Relaying System in Substation Reliability Evaluation
Studies,” IEEE Trans. on Power Systems, Vol. 6, NO. 4,
November, 1991, pp. 1373-1379, (co-authors, C. Dortolina
and J.J. Porta).
24. “Maximal Load Demand Allocation,” JEEE Trans. on
Power Systems, Vol. 7 , No. 2, May, 1992, pp. 528-535, (coauthors, K.A. Loparo and T.E. Dy Liacco).
25. “A Hierarchical Interactive Approach to Electric Power
System Restoration,” IEEE Trans. on Power Systems, Vol.
7, No. 3, August, 1992, pp. 1123-1 131, (co-authors, T.E. Dy
Liacco and K.A. Loparo).
26. “Bulk Transmission System Loss Analysis,” JEEE Trans. on
Power Systems, Vol, 8, No. 2, May, 1993, pp. 405-416, (coauthors, F.F. Wu, D.J. Maratukulam, E.P. Weber, and C.L.
Thomas).
27. “Strategic Use of Transmission Planning Tools and
Information,” 1994 APPARVPPA Engineering and
Operarions Workshop, Nashville, Tennessee, March, (coauthor, AS. Cook.)
--
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Attachment RN-Rl
Page 4 of 4
Technical Publications
Denver, Colorado, 6-10 June, 2004 (co-authors, C.A.
Dortolina, N.J. Bacalao, and P. De Ariz6n).
4 1. “Reliability
Rules!”,
EnergyPuIse,
June
2004
(http://www.energypuIse.net/centers/artilay.c
fm?a_id=756) (co-author, C.A. Dortolina).
42. “Supply Risk Analysis in Electricity Markets from the
Perspective of a Large Customw”, Proceedings of the 2004
IEEE PES General Meeting, Denver, Colorado, 6-1 0 June,
2004 (co-authors, C.A. Dortolina, H. Fendt, N.J. Bacalao,
and J. Di BelFa).
43. “Strategic Assessment of Supply Options in Power Systems
with Significant Resource Uncertainty”, presented at the 8th
International Conference on Probabilistic Methods Applied
to Power Systems (PMAPS-2004), held September 1 2- 16,
2004, Iowa State University, Ames, Iowa (co-authors, C.A.
Dortolina, H.Fendt, N.J. Bacalao, and 1. Di Bella).
44. “The Loss that is Unknown is No Loss At All - A Top
Down/Bottom Up Approach for Estimating Distribution
Losses,” IEEE Transactions on Power Systems, Vol. 20,
No. 2, pp. 1119-1125, May, 2005 (co-author, C.A.
Dortolina).
45. “Estimating Future Demand - A Top Down/Bottom Up
Approach for Forecasting Annual Growths,” 2005 IEEE
PES General Meeting, San Francisco, California, June 2005
(co-author, C.A. Dortolina).
46. “Measuring the Performance of Distribution Utilities. A
Top-DowdBottom-Up Approach”, 1006 IEEE PES T&D
C&E, Caracas, Venezuela, August, 2006 (co-authors, C.
Dortolina, and N. Bacalao).
47. “Reliability Rules!“, Siemens PTI eNewslener, September,
2006 (co-author, C. Dortolina).
48. “Brief on Final FERC Ruling. Promoting Transmission
Investment through Pricing Reform. Siemens PTI Can Help
You Capture the Best Opportunities”, Siemens PTI
eNewsletrer, September, 2006 (co-author, M.J.S. Edmonds).
28. “On the Technical Aspects of Developing Non-Utility
Generation in Competitive Markets,” 1995 American Power
Conference, Chicago, IL, April.
29. “Developing Non-Utility Generation in Competitive
Markets,“ Power Technology Newsletter, Power
Technologies, Inc., Issue No. 82, 1995.
30. ‘On the Availability of Data Required by Optimal Power
Flows Under Increased Competition,” IEEE Tutorial
Course: Optimal Power Flow-Solution Techniques,
Requirements, and Challenges, 1996 (co-author, AS.
Cook).
31. ‘”The Walrus and the Carpenter: Two Views on Network
Sentices for Virtual Utilities,” Symposium on the Virtual
Utiliry, 1996 (co-authors, H.M. Menill, and S.J. Baker).
32. “Wheeling Tariffs for Transmission Senrices,” Presented at
the 11” Con&-enceof the Electric Power Supply Industry
(I1 CEPSI), Kuala Lampur, Malaysia, 1996 (co-authors,
R.R. Austria, W.R. Puntel, P.S. Hurley, R.C. Bacani, R.F.
Nuqui, and M.R. Pangilinan).
33. “Planning of Power Transmission Systems in the Future:
How Valid Are the Traditional Premises?” (in Spanish),
Presented at the Latin America Power ‘97 Conference and
Exhibition, Caracas, Venezuela, J 997 (co-authors, R.R.
Austria, L. Cosenza, F. Lecaros, C. Fuentes E., M.A. Avila,
and 1. Ramirez 0.)
34. “Least-Cost Transmission Planning Considering Power Industry
Restructuring,” Presented at the IYY7 IASTED Jnlernational
Conference, Orlando, Florida, USA, I997 (co-authors, R.R.
Austria, L Cosenza, C.F ~ e n t eE.,~ M.A. Avila, and J. Ramirez 0.)
35. “Transmission Planning in the Presence of Uncertainties”,
Proceedings of the 2003 IEEE PES General Meeting,
Toronto, Canada, July, 2003 (co-authors, R.R. Austria, C.A.
Dortolina, and F. Lecaros).
36. “Evaluation of Transmission Tariff Methods in Restructured
Power Markets”, Proceedings of the 2003 IEEE PES
General Meeting, Toronto, Canada, July, 2003 (co-authors,
H.M. Menill, N.J. Bacalao, and C.A. Dortolina).
37. “A Novel Approach to Computing Distribution Losses”,
Proceedings of the IEEE 2003 PES T&D Conference,
Dallas, Texas, September, 2003, Vol. 2, pp. 659-663 (coauthors, C.A. Dortolina, and S.M. Benchluch).
38. “Where do you Draw the Line? - Setting Boundaries
between Gencos, Transcos, and Discos”, The Electricity
Journal, Elsevier, Inc., Vol. 16, No. 9, November, 2003, pp.
3 2 4 2 (co-author, C.A. Dortolina).
39. “Transmission Planning Today - A Challenging
Undertaking”, The Electricity Journal, Elsevier, Inc., Vol.
17, No. 4, May, 2004, pp. 24-32 (co-authors, R.R. Austria,
C.A. Dortolina, and M.A. Avila).
40. “Integrated Resource Planning in Developing Countries - A
Novel Practical Approach,” Invited Paper, Presented at the
Panel Session titled “Integrated Resource Planning and
Sustainability in the Deregulated Environment”,
Proceedings of the 2004 IEEE PES General Meeting,
Page 2
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RAMON NAD1R.A. PH.D.
Attachment RN-Rz:
Page 1 of 1
Technical Publications (Loss Analysis)
1. “Bulk Transmission System Loss Analysis. Volume I :
Theory and Practice. Volume 2: Computer Program,” EPRl
Report EL-6814, EPRl Project RP 2716-1, 1990.
2.
3.
4.
5.
6.
“Interconnected Power System Loss Analysis,” 1990
American Power Conference, Chicago, Illinois, April, (coauthors, D. Maratukulam, E.P. Weber, and C.L. Thomas.)
“Bulk Transmission System Loss Analysis,” IEEE Trans. on
Power Systems, Vol. 8, No. 2, May, 1993, pp. 405-416, (coauthors, F.F. Wu, D.J. Maratukulam, E.P. Weber, and C.L.
Thomas).
“A Novel Approach to Computing Distribution Losses”,
Proceedings of the IEEE 2003 PES T&L) Conference,
Dallas, Texas, September, 2003, Vol. 2, pp. 659-663 (coauthors, C.A. Dortolina, and S.M. Benchluch).
“The Loss that is Unknown is No Loss At All - A Top
Down/Bottom Up Approach for Estimating Distribution
Losses,” IEEE Transactions on Power Systems, Vol. 20,
No. 2, pp- 1119-1125, May, 2005 (co-author, C.A.
Dortolina).
“Measuring the Performance of Distribution Utilities. A
Top-Down/Bottom-Up Approach”, 2006 IEEE PES TBrD
C&E, Caracas, Venezuela, August, 2006 (co-authors, C.
Dortolina, and N. Bacalao).
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or-0-3
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