Incorporating Open/Free GIS and GPS Software in Power Transmission Line Routine Work: The Case of Crete and Rhodes

D. Pylarinos, I. Pellas


Geographical Information System (GIS) and Global Positioning System (GPS) software are widely gaining attention in power system planning and operation. Although commercial systems are increasingly being incorporated in power systems applications, they are yet to be fully incorporated in the routine work of utilities (and especially in the work of crews), due to several reasons such as cost, portability, connectivity, performance/speed, infrastructure etc. This paper focuses on incorporating certain open/free GIS and GPS software in routine transmission line work. The case study is the 150kV transmission systems of the Greek islands of Crete and Rhodes which show increased complexity due to certain localized factors such as Greek legislation, the diverse terrain/routes, the segmented design due to the network’s growth over the years (regarding both voltage levels and routes) and the use of different Coordinate Reference Systems (or Geodetic Systems) from the Greek state. The main goals of this work was to incorporate open/free software that provided limitless online access points, offline navigation and a user friendly design that wouldn’t require any additional training, programming etc. The basic scheme described in this paper can be followed to provide similar results in other applications.


power transmission system; GIS; GPS; offline navigation; free; open; software; geodetic systems; coordinate reference system

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L. L. Grigsby (editor), The electric power engineering handbook: electric power generation, transmission and distribution, CRCPress - Taylor and Francis Group, 2012

T. Gonen, Electric power transmission system engineering analysis and design, 2nd edition, John Wiley & Sons, 1988

H. H. Farr, Transmission line design manual, United States Department of the Interior, 1980

Supplemental Municipal Consultation Filing, Transmission line route/configuration alternatives, 2011

Y. Wang, W. Huang, Y. Li, Q. B. Tu, X. Tain, “Optimal design of transmission line route based on GIS”, Applied Mechanics and Materials, Vols. 644-650, pp. 3522-3527, 2014

Y. Yang, Y. Liu, Y. Cao, “Study on a method of design for rural power distribution lines based on 3D GIS technology”, Mathematical and Computer Modelling, Vol. 51, pp. 1293-1298, 2010

B. Meehan, GIS for enhanced electrical utility performance, Artech House, 2013

Wikipedia, “Geographic information system”,

Wikipedia, “Global Positioning System”,

S. Saxena, M. Ali, K. Gandhi, N. Ranjan, “Protection of transmission system using global positioning system”, MIT International Journal of Electrical and Instrumentation Engineering, Vol. 3, No. 1, pp. 33–39, 2013

S. Kamboj, R. Dahiya, “Application of GPS for sag measurement of overhead power transmission line”, International Journal on Electrical Engineering and Informatics, Vol. 3, No. 3, pp. 268-277, 2011

Z. Hu, Y. Chen, “New method of live line measuring the inductance parameters of transmission lines based on GPS technology”, IEEE Transactions on Power Delivery, Vol. 23, No. 3, pp. 1288-1295, 2008

N. G. Boulaxis, M. P. Papadopoulos, “Optimal feeder routing in distribution system planning using dynamic programming technique and GIS facilities”, IEEE Transactions on Power Delivery, Vol. 17, No. 1, pp. 242-247, Jan 2002

Y. Liu, D. Liu, Y. Xie, “Research on auxiliary design system for rural power grids based on 3D GIS”, Journal of Software, Vol. 8, No. 3, pp. 652-658, 2013

N. Parkpoom, “GIS-based model for implementation on Power Transformer planning within Thailand Power Network”, Asia-Oceania Regional Council of CIGRE, China, September 3-5, 2013


General Electric, GE Smallworld,

Google Earth,

Google Earth Pro,

R. Broida, “Get Google Earth Pro for free”,

GeoCommunity, “GIS Viewing Tools You Shouldn't Be Without!”,

N. Patwardhan, “Power System Visualization with Google Earth”, Siemens Power Technology, No. 100, 2007

Ampirical Solutions – Engineering and EPC Services for Transmission Systems,




Google Developers, "Keyhole Markup Language, KML Documentation Introduction",

Galileo Offline Maps,

Google Maps Help, “Download areas and navigate offline”,

Coord Gr,


Public Power Corporation S.A.,

Hellenic Electricity Distribution Network Operator S. A.,

Independent Power Transmission Operator S. A.,

Official Government Gazette,

National Printing House,

Wikipedia, “Geodetic datum”,

Wikipedia, “World Geodetic System”,, Map Projections GR,

Wikipedia, “Hellenic Geodetic Reference System 1987”,

National Cadastral Agency, “User Guide for HEPOS”, (in Greek)

The World Coordinate Converter,

National Cadastral Agency,

Mapsdata Online Converters,

Google Earth Help Forum, “How do I fill the Name for each Placemark automatically while importing from a csv file in Google Earth Pro”,!topic/earth/Ied75OcNtmI

Earth Point, “Excel To KML-Display Excel files on Google Earth”,

Google Maps Help, “Embed a map or share a location”,

TALOS High Voltage Test Station, The Transmission System of Crete,