Check out OpenGridMap – a tool for mapping grid infrastructure

http://opengridmap.com/

Here is our first paper describing the prototype:

J. Rivera, C. Goebel, D. Sardari, H.-A. Jacobsen. OpenGridMap: An Open Platform for Inferring Power Grids with Crowdsourced Data. 6th Conference on Energy Informatics (EI2015), Karlsruhe, Germany. (2015) Link. Preprint PDF