$257.4 million in five years - $51.4 million per year - $34.32 per customer per year - $171.60 per customer in 5 years;         [AE has 1.5 million customers in their service area]

Aluminum Conductor Steel Reinforced (ACSR) and other traditional energy cables utilize a steel wire core around which the aluminum conductor wires are wrapped – a design originally introduced in 1898.

In contrast, CTC’s Aluminum Conductor Composite Core – ACCC – cables incorporate a light-weight advanced composite core around which aluminum conductor wires are wrapped in a manner identical to traditional energy cable. The composite cores lighter-weight, smaller size, and enhanced strength and other performance advantages over traditional steel core allows ACCC to double the current carrying capacity over existing transmission and distribution cable and virtually eliminate high-temperature sag.

CTC’s ACCC/TW is designed for overhead transmission and distribution lines. It is designed to be operated continuously at elevated temperatures of up to 200°C with dramatically less sag and final sags are not affected by long-term creep of
aluminum. CTC’s extensive line of ACCC/TW energy cables serves the broad energy distribution needs of customers in the electric utility, rural electrical co-op and public power markets.

Aluminum Conductor Steel Reinforced (ACSR) and other traditional energy cables utilize a steel wire core around which the aluminum conductor wires are wrapped – a design originally introduced in 1898.

In contrast, CTC’s Aluminum Conductor Composite Core – ACCC – cables incorporate a light-weight advanced composite core around which aluminum conductor wires are wrapped in a manner identical to traditional energy cable. The composite cores lighter-weight, smaller size, and enhanced strength and other performance advantages over traditional steel core allows ACCC to double the current carrying capacity over existing transmission and distribution cable and virtually eliminate high-temperature sag.

CTC’s ACCC/TW is designed for overhead transmission and distribution lines. It is designed to be operated continuously at elevated temperatures of up to 200°C with dramatically less sag and final sags are not affected by long-term creep of
aluminum. CTC’s extensive line of ACCC/TW energy cables serves the broad energy distribution needs of customers in the electric utility, rural electrical co-op and public power markets.

These performance advantages that address key problems plaguing the utility market and offer significant benefits to electric utility companies and ultimately to their industrial, commercial and residential customers.

Comparison of the two conductors revealed the following:

When both conductors were hung and operated at 180°C, the ACCC/TW had a higher ampacity than Drake.

ACCC/TW carried 1760 amps at 180°C, while Drake carried 1566 amps at the same temperature.

The U.S. Department of Energy’s National Transmission Grid Study stated “new transmission conductors with composite cores, as apposed to steel cores, are both lighter and have greater current carrying capacity, allowing more power to flow in existing rights-of way.”

ACCC (Aluminum Conductor Composite Core) cable can double the current carrying capacity over existing transmission and distribution cable and can dramatically increase system reliability by virtually eliminating high-temperature sag.

ACCC cable is superior to existing cable such as ACSR and ACSS in a number of key performance areas.

These performance advantages that address key problems plaguing the utility market and offer significant benefits to electric utility companies and ultimately to their industrial, commercial and residential customers.

James Booker goes on to say the “…CTC conductors will be by far the best designed conductor available for rebuilding of the infrastructure.  The savings in wet corona will eventually pay for the cost of the conductors and then keep on saving.”

The amount of sag in a conductor is influenced by the thermal expansion coefficent(s) of the material(s) in the conductor.  CTC’s composite core in the TransPowr ACCC/TW conductor has an extremely small coefficient of thermal expansion. Therefore, as the conductor temperature rises, the sag characteristics of the conductor remains virtually constant.

We’ll be looking at ACCC cable benefits in detail throughout this presentation.  ACCC cable is superior to existing ACSR and ACSS cable in a number of key performance areas.  These performance advantages address critical problems plaguing the utility industry and offer significant benefits to electric utility companies and ultimately to their industrial, commercial, and residential customers.  Besides doubling ampacity and virtually eliminating high-temperature sag, ACCC’s non-metallic core doesn’t contribute to inductive heating.  The annealed aluminum strand wires in combination with the composite core exhibit excellent self-damping characteristics.

ACCC/TW cables are designed to maintain the same overall diameter as conventional ACSR with a weight slightly lower.  The compact trapezoidal conductors, coupled with a smaller composite core, result in a TW conductor that has approximate 28% (actually a nominal 28.3% increase) more aluminum cross-sectional area than ACSR.

The composite core has up to twice the strength of conventional steel core and will not rust, corrode or cause electrolysis with aluminum conductors or other components.

copper loss (I²R loss) – the power loss in watts due to the flow of electric current in the windings of an electrical machine or transformer. It is equal to the product of the square of the current and the resistance of the winding.

I²R Loss: Power loss due to electricity power propagation though wire.

Increasing voltage by a factor of 10  decreases line loss by a factor of 100.

As mentioned earlier, the ACCC cables have been subjected to extensive analysis and empirical testing by CTC and several internationally know test organizations.  This information has been made available and allows users of PLS-CADD, Sag 10 and other software packages to utilize these industry standard tools in their development programs.

NIn addition to conventional software tools, CTC has also created a design tool that allows engineering and administrative personnel to accurately assess the attributes of applying ACCC technology to their specific project applications.

Inputs utilize IEEE standard information, such as: Ambient air temperature, wind speed, emissivity, solar absorption (absorptivity), elevation above sea level, latitude, time of measurement, line voltage, line mileage, wires/bundle, conductor details, revenue per kW per demand timing, maximum operating temperature, percentage of operations at each of three demand situations (base, intermediate and high/peak).

With this tool, informed design decisions can be made to maximize the utility revenue possibilities with minimum cost and reduced line losses.

In addition to conventional software tools, CTC has also created a design tool that allows engineering and administrative personnel to accurately assess the attributes of applying ACCC technology to their specific project applications.

Inputs utilize IEEE standard information, such as: Ambient air temperature, wind speed, emissivity, solar absorption (absorptivity), elevation above sea level, latitude, time of measurement, line voltage, line mileage, wires/bundle, conductor details, revenue per kW per demand timing, maximum operating temperature, percentage of operations at each of three demand situations (base, intermediate and high/peak).

With this tool, informed design decisions can be made to maximize the utility revenue possibilities with minimum cost and reduced line losses.

In addition to conventional software tools, CTC has also created a design tool that allows engineering and administrative personnel to accurately assess the attributes of applying ACCC technology to their specific project applications.

Inputs utilize IEEE standard information, such as: Ambient air temperature, wind speed, emissivity, solar absorption (absorptivity), elevation above sea level, latitude, time of measurement, line voltage, line mileage, wires/bundle, conductor details, revenue per kW per demand timing, maximum operating temperature, percentage of operations at each of three demand situations (base, intermediate and high/peak).

With this tool, informed design decisions can be made to maximize the utility revenue possibilities with minimum cost and reduced line losses.

In addition to conventional software tools, CTC has also created a design tool that allows engineering and administrative personnel to accurately assess the attributes of applying ACCC technology to their specific project applications.

Inputs utilize IEEE standard information, such as: Ambient air temperature, wind speed, emissivity, solar absorption (absorptivity), elevation above sea level, latitude, time of measurement, line voltage, line mileage, wires/bundle, conductor details, revenue per kW per demand timing, maximum operating temperature, percentage of operations at each of three demand situations (base, intermediate and high/peak).

With this tool, informed design decisions can be made to maximize the utility revenue possibilities with minimum cost and reduced line losses.

Quiz: East coast power outage on August 14, 2003 – 61,000 MW of power – 50 million people impacted – economic loss of over $4 billion – over heated line due to grounding out on a tree.

If Allegheny Energy looks at ONLY the simple Return on Investment (ROI) without completing a full analysis of ACCC/TW technology and the long-term benefits to the rate payers,

they are not fulfilling their fiduciary responsibilities to Maryland rate-payers as required by the Public Service Commission and

they will be adding to the already immense financial burden rate-payers are facing with their short-sighted decisions.

Remember:

The U.S. Department of Energy’s National Transmission Grid Study stated “new transmission conductors with composite cores, as apposed to steel cores, are both lighter and have greater current carrying capacity, allowing more power to flow in existing rights-of way.”

ACCC (Aluminum Conductor Composite Core) cable can double the current carrying capacity over existing transmission and distribution cable and can dramatically increase system reliability by virtually eliminating high-temperature sag.

ACCC cable is superior to existing cable such as ACSR and ACSS in a number of key performance areas.

These performance advantages that address key problems plaguing the utility market and offer significant benefits to electric utility companies and ultimately to their industrial, commercial and residential customers.