of S700s (placed in 2019). The S70, S700 and Avanto can be configured to operate on various overhead power supply systems. For example, the Avantos ordered for France are dual voltage, capable of operating on 750 V DC when running on tram or light rail tracks and on when running on main line tracks. Systems in the Americas use a variety of systems including 600 V DC, 750 V DC and . The S70 and S700 can also be equipped to interface with older Siemens light rail vehicles. The San Diego Trolley's S70 and S700 vehicles frequently operate with high-floor SD-100 vehicles. Usage and current orders United States Atlanta, Georgia (Atlanta Streetcar): 4 S70 Streetcar units, ordered in 2011. In May 2011, Siemens announced that it had won the $17.2 million contract to build the four streetcars that run on the Atlanta Streetcar. The vehicles were built at Siemens' plant in Florin, California, but with major components, including the propulsion system, assembled at Siemens' plant in Alpharetta, Georgia. The first of the streetcars was delivered on February 17, 2014, and began passenger service on December 30, 2014. Charlotte, North Carolina Lynx Blue Line: 42 S70 units purchased and now operating. First 16 cars, purchased for $50 million, have been in service since the opening of the Charlotte light rail system in November 2007. Four additional units purchased in 2008 to keep up with higher-than-expected ridership were received in early 2010. In 2012, after 4 years of operation, the original 16 cars had to be repaired at the Siemens facility in California for an estimated cost of $400,000 each. A third order, for 22 LRVs, was delivered in stages between fall 2014 and spring 2017, and CATS now operates 42 S70 vehicles. CityLynx Gold Line: Six S700 streetcar units were ordered in 2016, and were delivered in 2019–2020. These six cars were specified to have internal batteries to allow off-wire operations in some areas. The S700 streetcars are a compact version of the S70 light rail vehicles that currently operate on the LYNX Blue Line. The cost to purchase these six vehicles and spare parts is $40.4 million. Houston, Texas (METRORail): 18 S70 units purchased, the first of which was delivered in April 2003; delivery was completed in late 2004. Nineteen additional units were purchased later, procured using Utah Transit Authority (Salt Lake City) options, delivered starting in late 2012. The