HTV weather presenter Joanna Rice opened an Autogas facility at the Countrywide Store, Melksham.
Countrywide Energy is developing a network of Autogas pumps.
Anyone with a company account is issued with a key allowing them to fill up at any Countrywide filling point.
No cash is required as an itemised bill is sent at the end of each month.
David Asquith, general manager of Countrywide Energy, said: "Low Pressure Gas reduces motoring costs and is more environmentally friendly."
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