Reduce project time and cost while improving system value.
Electric utilities face rapid change as rules are rewritten, public expectations conflict with sound planning and engineering, and efforts to ensure grid reliability are seen as blocking access and restraining potential.
Because 3M ACCR is an advanced transmission conductor designed to replace ACSR or ACSS on existing structures, you get up to two to three times the capacity, while delivering continued value to the shareholder and reducing ratepayer impacts from major construction projects.
reduce construction outages;
speed up and simplify permitting;
reduce project schedule;
increase budget certainty;
minimize new environmental impacts on existing rights of way.
Apply These Benefits to Your Most complex Challenges
Getting renewables to load centers using existing structures and rights of way, where feasible, has several benefits:
maximizing the use of existing assets, rights of way and investments,
minimizing disturbances to the environment and community,
reducing permitting, schedule and cost risks associated with construction, and
getting the upgrade done fast.
Building new lines
If new lines are necessary to bring renewables from remote areas to load centers, 3M ACCR can be installed on sections where permitting, environmental impacts, or aesthetics raise issues or cause delays. In those sections, 3M ACCR can be installed using existing, fewer or shorter structures. Then, construction can continue with conventional materials.
Advanced transmission conductors like 3M ACCR can work in conjunction with technologies that store power, manage voltage stability and provide data to utilities and their customers. Together, these technologies can help utilities maximize the efficiency, reliability and security of the grid by providing alternate paths for switching between intermittent resources and conventional generation, opening access for renewable generation, and developing a robust system that can survive disruptions through alternative single and double contingency paths.
EHV Overlay System
Transmission lines are usually rated using a single contingency standard, in which the rated capacity depends upon the ability of other lines in the path to support the system if the line is out of service. Therefore, the more robust the underlying system, the more energy is allowed to flow across the path. To get the maximum capacity, and the maximum value, from Extra High Voltage (EHV) investments, utilities must often upgrade lower voltage lines. The quickest, most cost effective and least impactful way is to reconductor using existing corridors and structures as much as possible. A more reliable system is a more valuable system.