The demand for electric power continues to grow faster than the ability of the transmission grid to reliably and safely deliver that power by the utility industry. The result: the transmission grid, as currently managed, is overburdened. System bottlenecks and congestion, blackouts, as well as equipment and system disturbances are occurring with alarming frequency. In fact, power-related issues cost U.S. businesses over $100 billion per year. Promethean’s real-time dynamic line rating solution improves transmission reliability, relieves power line congestion, and can safely permit 15 to 40% more power to be moved over existing circuits. And unlike other systems, transmission outages are not required for installation or calibration, which equals faster installation and lower total cost of ownership.

Promethean Devices™ Real-Time Dynamic Line Rating Solution for Transmission Lines

New Challenges facing Transmission Line Operators:

• Avoiding Transmission Loading Reliefs and costly Generation re-dispatch

• Avoiding curtailment of highly variable renewable generation using Static Ratings

• Managing N-1 and N-2 contingency situations

• Addressing operational issues associated with NERC 810 Compliance

The existing transmission system was not designed to move large blocks of power through markets and import generation from wind and solar that you can’t dispatch. New lines are hard to site and build and can take years from planning to completion.

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Dynamic Rating MVA Static Rating MVA

Power Your LinesStatic vs Dynamic Rating

Caught among all of these new realities is a transmission grid designed around a “static rating” but trying to supply a dynamicmarket. When these constraints collide the impact is transmission “congestion”.

What if more power is available than the “static rating” suggests? What if I could move 15-40% more power through my existing lines reliably and safely?

Promethean Devices delivers the real-time information you need to push the power “available” to you and the power “assumed” for you by system planning.

Reduce grid congestion costs by using your “real-time” rating vs. your “assumed” static rating

• Non-contact monitoring – nothing touches the transmission line

• No need to schedule outages to install

• Move 15-40% more power over existing lines safely and reliably

• Integration of weather data and advanced analytics to provide reliable and accurate forecasting for dynamically rating

• Provide “Operating Envelopes” with confidence intervals and real time visibility for line temperature and clearance

• Reduce generation re-dispatch and greenhouse gas emissions while avoiding the higher costs associated with buying power

out of merit order • Measure actual line clearance; does not use average values derived from tension between dead ends

• Data-driven Graphical User Interface (GUI) configurable for one year

• Totally portable – can be redeployed to a new line location within 50 man-hours

Managing Existing Transmission and Generation Assets in a New Environment Deploying Promethean Devices™ Real-Time Dynamic Line Rating Solution

Alcan Cable Division of Alcan Products CorporationThree Ravinia Drive, Suite 1600 I Atlanta, GA 30346-2133 770-394-9886 I fax 770-677-2609

For more information on Alcan Cable, go to www.cable.alcan.com or call 800-347-0571. UT-0007B 8/2011

© 2011 Alcan Cable. is a registered trademark of Rio Tinto Alcan Inc. All rights reserved. © 2011 Promethean Devices. Promethean Devices is a registered trademark of Promethean Devices, Inc. All rights reserved.

Promethean Devices™ Real-Time Dynamic Line Rating Solution for Transmission Lines

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