No electric cars should be sold in Texas, if people want a "clean" vehicle. Should be a disclaimer on electric cars telling prospective buyers where electricity comes from - natural gas, coal and oil.
We do have more wind power than any other state...
http://www.eia.gov/state/?sid=TX
Wind generates more than 10% of Texas electricity in 2014
http://www.eia.gov/todayinenergy/detail.cfm?id=20051