Tesla (TSLA -1.32%) is significantly expanding its network of Supercharger stations used to recharge its Tesla S model electric car, the company announced today, saying that within six months the Tesla Supercharger network will connect most major metro areas in the U.S. and Canada.

The expanded network will triple Tesla's existing charging stations by the end of next month. There are currently eight stations, six on the West Coast and two on the East Coast, where Model S owners can charge their vehicles for free. They provide half a charge in about 20 minutes.

Tesla says it will add charging stations in the Pacific Northwest, from Vancouver to Seattle to Portland, in addition to new stations in California, adding to that market's existing network. Austin and Dallas will also have new charging stations by the end of June, Tesla said, as will Illinois and Colorado. Tesla is also opening four additional stations along the Eastern Seaboard.

Tesla's objective within the next six months is to continue expanding its charging station network, connecting major metropolitan areas across Canada and the U.S., with plans to cover nearly the entire population within the next 12 months.

Tesla also announced it is close to introducing a new charging technology, limiting the time necessary to charge its S model vehicle. According to Tesla, the new technology is in beta test and plans are to roll out the improved system by summer. The enhanced charging capabilities will allow a full charge in half the time of its existing charging stations.

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