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Transmission & Distribution Consulting

Product & Service Offerings

System Planning

New lines, line additions, line improvements, line relocations, line removals, substations, and substation additions all require extensive planning and budgeting. We can provide a complete service or supplement your work force.

System Analysis

Using the latest software, we can assist you with contingency analysis, reliability studies, and other planning studies.

Business Process Improvement

The identification of issues that obstruct the utility or business unit from meeting its goals is the first step in gaining and maintaining a competitive business advantage. Since 1993 Yanco Associates has performed this work at major T&D utilities.


We can support your staff or take on entire projects. From hardware to plan and profile drawings to structure designs, Yanco Associates can help you complete your projects.

Project Management

With experience on some of the largest T&D projects in the world (lines and substations), we can support you on a single project or establish a Project Management Office to support several projects at the same time.

Construction Management

Yanco Associates can provide the field assets to support a simple line relocation or a major transmission expansion program.

Asset Management

Utilities are quickly finding that transmission assets in the deregulated environment are a challenge to operate effectively and efficiently, but also an opportunity to improve earnings. We provide knowledge and experience starting with asset strategic planning and including the complete asset life cycle management.

Information Technologies

From analysis software to line design software to SCADA/EMS systems, we can assist you in planning, product selection, and system implementation. We understand the combined requirements of transmission operations for asset-centric and operations-centric support systems operating in unison to provide a total operations and maintenance solution

Transmission Work Focused on System Planning, System Analysis, Business Process Improvement, Design, Project Management, Construction Management, Asset Management, and Information Technologies.

Typical T&D Services

  • Long and short range planning studies.
  • Power systems analysis.
  • Current business process review--a walk through of major functions (needs identification, records, data, line siting, design, permitting, project management, construction, records, etc.).
  • Business process, system, and data assessments based on both future and current processes and systems that are used to facilitate the work.
  • Transmission line design and substation design from 25 kV to 500 kV.
  • Project/program management.
  • Construction management.
  • Asset management, maintenance management, and materials management.
  • Information technologies, including SCADA/EMS, GIS, Asset Management Systems, Transmission Work Management Systems, line design applications, and network analysis applications.

Representative T&D Experience of the Yanco Associates Team

  • Arabian American Oil Company (ARAMCO) - Design of over 350 miles of transmission lines in the Eastern Province of Saudi Arabia, including double circuit 230 kV, single and double circuit 115 kV and single circuit 69 kV.
  • Arabian American Oil Company (ARAMCO) - Design and implementation of new nine master SCADA/EMS system for ARAMCO in the Eastern Province of Saudi Arabia. The system included retrofitting 25 existing substations with new RTUs, new RTUs for the new substations, the master station, communications, Sequence of Events recorders, and weather stations.
  • Royal Commission for Jubail and Yanbu, Jubail Industrial City - Comprehensive system planning studies for the development of the 115 kV, 34.5 kV, and 13.8 kV underground transmission and distribution systems to serve the industrial and residential complex. The project included a ring of eight 115 kV Gas Insulated Substations feeding the primary industries, a network of 34.5 kV substations serving the secondary industries, and a network of 13.8 kV substations serving the residential area.
  • New England Power Company - Implementation and project responsibility to upgrade transmission capacity, including GIS installations at Tewksbury 345 kV, Golden Hills 345 KV to 115 kV to pipe cable to New Boston. Hydro Quebec phase 1 - HVDC station design/selection, DC line design participation, relocation responsibility for 115 kV lines and construction of new 345 kV lines on existing ROW. Asset responsibility for all AC and DC lines and stations - NEPCo, MECo, and Granite State Electric.
  • Business Process - Work in consortium with major utility software suppliers to design a combined work management and asset management solution for the management of 28,000 miles of transmission and 3000 transmission substations.
  • Occidental of Elk Hills, Inc. - Preliminary design of 450 MVA, 230/115 kV receiver substation and associated transmission interconnections to support a major upgrade to OEHI's production facilities.


Send mail to ron@yanco.com with questions or comments about this web site.
Copyright 2009 Yanco Associates
Last modified: 09/21/09