TTR Substations is a full service electrical substation contractor. TTR is fully equipped to handle the largest substation pr ... ojects as well as the small projects. TTR Substations Inc. was started by dedicated individuals with a vision for the utility industry. That vision was simple: Create a company with a core group of professional grade employees who enjoy constructing electrical substations. TTRS, Inc.’s initial market focus has been within the Pacific Gas and Electric system and in 2004 we completed 17 projects safely, on time and under budget. Since then, we have successfully completed hundreds of projects for PG&E, Southern California Edison and Modesto Irrigation District read more