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CADER/DPCA Symposium on Distributed Resources

[I’ll be attending the DOE Distributed Power Program Review and Planning Meeting in Washington next Monday September 27, followed by the IEEE working group session.]

San Diego Sept 13-14

(see program/agenda at http://www.cader.org)

The meeting was very well attended, exceeding expectations, with roughly 400 registered. It included keynotes by notables (Larry Papay of Bechtel, Dan Reicher, Ass’t Secty, EE/DOE, and David Rohy, Calif Energy Commissioner) and two days of parallel sessions on “Policy”, “Technologies” and “Markets”. It was impossible to be in 3 places at once, however the 2″ thick binder provided copies of the vugraphs from most of the presentations.

A dominant theme: it is not a matter if, or even when, but only of how fast, distributed generation will be deployed on a major scale. In fact, DG is already here, and has been for a long time, in various forms and applications. If it truly is a “disruptive technology”, then we can expect it to lurk below the surface, serving in various niche applications, until a crossover occurs and it emerges an a major scale.

The biggest issue seems to be interconnection with the grid. Advocates see utilities as putting up strong resistance. One speaker, Edan Prabhu, explained it terms of distribution departments, at the low end of the totem pole in utilities, trying to protect themselves and their “turf” from this dangerous invasion of “their” system. He explained how the good guys meet the “nice guys”–DG advocates vs. the well-meaning protectors of the system.

There was considerable muttering in the back of the room as speakers from the California utilities claimed to be doing all they can. Repeatedly, we see instances where utilities can handle interconnections just fine, when they want to. In other situations, however, they seen as throwing up roadblocks and delays. Ironically, utilities are entirely comfortable with large motors, which feed back fault current when voltage disappears, but this same issue is seen as a huge problem for DG.

As Dan Reicher explained in his comments, nine states have now gone ahead to establish some kind of interconnection standards for small scale generation, while the long term answer is to have one new national standard. The IEEE work under Dick DeBlasio is key to this, and DOE also supports the development of advanced hardware and software for interconnection.

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There was a very good summary of the remarkable events in Texas, where a process has moved with unprecedented speed to cut through the confusion and arrive at an interim set of workable policies. The proposed rules are available online:
http://www.puc.state.tx.us/rules/rulemake/21220/21220.cfm

A hearing is scheduled for October 25. The presentation was given by Nat Treadway, a former PUC analyst, who is now on his own. 713-669-9701, treadway@alumni.princeton.edu
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New York state has a similar initiative for small DG (under 300 KVA). A commission staff proposal was issued in July, however timing of a decision is uncertain. Comments were due by September 20. http://www.dps.state.ny.us/distgen.htm
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In California, the PUC took longer than expected to announce a decision on a staff recommendation to split their rulemaking proceeding into two parts — Distribution Competition, and DG Implementation Issues. A draft decision to do this was finally announced Sept 21, and is now available online (2 documents) at:
http://www.cpuc.ca.gov/distgen/docs.htm
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The California ISO presented an interesting comparison of technical requirements for large generators on the system with what might be needed for DG. Generators need to have sophisticated communications and control capabilities that the ISO can monitor and talk to directly. The ISO is implementing the “ANALOPE” system to do some of this over the internet (there is a strong need to certify bids and contracts–i.e. failsafe digital signatures). Once this is established, it may pave the way for the use of internet technology to communicate with DG’s and enable them to participate in the California energy and ancillary services markets.
(Contact: David Hawkins 916-351-4465 dhawkins@caiso.com)
http://www.caiso.com/pubinfo/info-security/index.html
http://www.caiso.com/pubinfo/info-security/projects/analope/faq.html
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The Technology sessions featured presentations by makers of microturbines, fuel cells, reciprocating engines, dish stirling, storage, and renewables. Discussions on “Markets” ranged from the “sleeping giant” of international electric demand, to combined heat and power and the use of smart technology to capture market value. Selected items may be featured in future UFTO Notes.

CERTS Draft White Papers – Grid of the Future

Consortium for Electric Reliability Technology Solutions (CERTS)
Grid of the Future

White Papers — August 30, 1999

Prepared for the:
Transmission Reliability Program
Office of Power Technologies
Energy Efficiency and Renewable Energy, DOE

Attached are the six DRAFT white papers prepared for the CERTS program by the various participants (labs and others), which have been made available to UFTO for review and comment. These were presented at an invitational workshop last Friday Sept. 17. Apparently Hurricane Floyd dampened the attendance but not the enthusiasm.

Plans are to close the written comment period at the end of the month, finalize the white papers, and then use them to develop a multi-year research plan for DOE.

Comments should be directed to:
Joe Eto, LBNL, 510-486-7284, JHEto@lbl.gov

(The six papers are together in a single zipped folder/directory. If you have trouble downloading or unzipping, I can supply them as word documents instead–total 2 MB)

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1. scenario300899.doc

The Federal Role in Electric System Reliability RD&D During a Time of Industry Transition: An Application of Scenario Analysis; Joseph Eto, LBNL

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2. integdr030999.doc

Interconnection and Controls for Reliable, Large Scale Integration of Distributed Energy Resources; Vikram Budhraja, Carlos Martinez, Jim Dyer, Mohan Kondragunta, Edison Technology Solutions

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3. rcntevnt010999.doc

Review of Recent Reliability Issues and System Events;
John F. Hauer, Jeff E. Dagle, PNNL

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4. bulkpowr070999.doc

Review of the Structure of Bulk Power Markets;
Brendan J. Kirby and John D. Kueck, ORNL

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5. realtime300899.doc

Real-Time Security Monitoring and Control of Power Systems; G. Gross (UIUC), A. Bose (WSU), C. DeMarco (UWM), M. Pai (UIUC), J. Thorp (Cornell U) and P. Varaiya (UCB) PSERC

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6. uncertai010999.doc

Accommodating Uncertainty in Planning and Operations;
M. Ivey, A. Akhil, D. Robinson, J. Stamp, K. Stamber, Sandia, K. Chu, PNNL

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^^^^^^^^^^^^^^^^
(Excerpt from:
UFTO Note – CERTS-New DOE Prog in Elec. Reliability, 01 Mar 1999)

FY 99 activities for DOE include work in five areas, the first of
which is:

“Grid of the Future”

The first year of a two year planning study to identify emerging gaps in reliability technology R&D. In the first year, CERTS will lay the groundwork for the development of a federal R&D roadmap by preparing six white papers, which will be the basis for industry-wide stakeholder workshops on:

(1) alternative scenarios for the future of the electric power system, including a detailed articulation of the technological assumptions underlying each of these futures;

(2) assessment of the technology and control R&D needs for widespread integration of distributed resources;

(3) recent reliability issues review, including in-depth analysis of technological and institutional aspects of recent reliability events (e.g., summer 1996 WSCC events; winter 1997 northeast ice storms; winter 1998 San Francisco outage, etc.);

(4) review and assessment of the current structure of U.S. bulk power markets and provision of reliability services (including 1998 price spikes in mid-west and west, and absence of meaningful opportunities for demand response);

(5) assessment of the technology and control R&D needs for real time system control;

(6) assessment of the treatment of uncertainty in planning and operational models.

IEEE Standards Group Tackles DR Interconnection Issues

The IEEE Standards Coordinating Committee 21 (IEEE SCC21) oversees the development of standards in the area of fuel cells, photovoltaics, distributed generation, and energy storage.

— SCC21 coordinates efforts in these fields among the various IEEE societies and other appropriate organizations to insure that all standards are consistent and properly reflect the views of all applicable disciplines. SCC21 reviews all proposed IEEE standards in these fields before their submission to the IEEE Standards Board for approval and coordinates submission to other organizations. (To learn more about IEEE Standards activities, go to: http://standards.ieee.org/ )

“Standard for Distributed Resources Interconnected with Electric Power Systems” is the task of a new working group (one of 19 under SCC21). Their project authorization request (PAR) P1547 got the final go ahead in March ’99 to develop a “uniform standard for interconnection of distributed resources with electric power systems and requirements relevant to the performance, operation, testing, safety considerations, and maintenance of the interconnection.”

Working Group Chair — Richard DeBlasio (NREL)
Vice Chair — Frank Goodman (EPRI)
Vice Chair — Joseph Koepfinger (Duquesne), and
Working Group Secretary — Thomas S. Basso (NREL).

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For a good and timely overview, see this recent testimony before the US Senate:

“Testimony on Interconnection of Distributed Resources before the Senate Energy and Natural Resources Committee, US Senate” June 22, 1999,
by Tom Schneider,Vice Chair, Energy Policy Committee, IEEE/USA,
http://www.ieeeusa.org/FORUM/POLICY/99june22.html
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The P1547 Working Group, whose membership is approaching 200, has met already several times since the initial organizational meeting in December, and will continue to meet as often as every 2-3 months. The last meeting was held Jun 28-30, in Chicago. Future meetings are set for Sept 27 (tentative – precise date to be determined), in Washington DC, then Dec 1-2, in Tampa.

At the September meeting, there are tentative plans to hold an open informational session, which might be good to attend. Also, the Summer Power Meeting in Edmonton (July 18-22) will have DR as a major theme (“Track 3”), with a panel session on interconnection.
(http://www.ieee.org/organizations/society/power/subpages/meetings-folder/summer99/sm99prev.htm)

There’s an aggressive schedule to put together a DR standards document for submission to the IEEE Standards Board — to have a final draft ready by March 2000. Individuals and small groups are working on writing assignments to prepare the various sections. The group has already produced and assembled a great deal of valuable information, and have worked out detailed classification schemes for types of DR interconnection equipment and configurations. Probably the most important attribute is size of the DR, and the size of the system it’s connected to–the larger the DR, as a fraction of the system, the more involved the requirements.

Overall, this is a huge undertaking. According to one estimate, there are at least 18,000 “combinations,” considering the number of different kinds of distribution circuits, inverter types, size ranges, and “issues” to address. An analysis by EEI (Interconnection Operations and Planning Group) has identified 30 issues, times 3 converter types (inverter, and synchronous, and asynch generator), times 5 distribution circuit types. (Some of the 30 issues include nuisance fuse blowing, reclosing, islanding, overvoltages, harmonics, switchgear ratings, lineworker safety, etc.) A major goal of this project is to minimize the time and expense required for protection studies and eliminate customization of solutions, by providing a common analysis framework and prequalification of equipment.

Individual states are under ratepayer pressure to come up quickly with their own jurisdictional DG interconnection rulings, and there are major programs in Europe, so it’s all the more important to avoid the complications of multiple (possibly conflicting) sets of requirements. Fortunately, many other IEEE committees already have standards related to interconnection topics or components, e.g. for power quality, relaying, etc. The ongoing cooperative consensus approach to the P1547 DR standard should help accelerate the development of a technically sound, uniform interconnection standard.

It’s seems surprising that relatively few utilities are represented on the Working Group, despite the often stated belief that DR is going to be hugely significant. (Industry organizations are actively participating, however, along with equipment makers and others.) The companies that are involved seem to embrace the DR concept and appear to be positioning themselves to prosper by it. (Some other companies are getting reputations as obstructionists, throwing obstacles and delays at every proposed installation.)

Participation is the best (only) way to tap into this rich array of information on the subject (all in hardcopy with minutes of the meetings!), and to track and influence developments. Industry experts who contribute their time and energy get a chance to make a difference.

Contact: Dick DeBlasio, 303-384-6452, dick_deblasio@nrel.gov
Tom Basso, 303-384-6765, thomas_basso@nrel.gov