The infrastructure for this is not available, nor do the 254 County yards have the ability to refuel.
FTA:
“Funding for the program will come from fees already collected from motorists and industry for the Texas Emissions Reduction Plan (TERP), which was established by the legislature in 2001 and currently contains more than $800 million. The bill allows up to 3 percent of the TERP fund balance to be used each year to finance the new governmental alternative fuel fleet program. SB 12 will also expand a program that provides state grants to build alternative fueling stations.”