From Young to Albury, workers from local depots and offices stopped work for four hours.

Essential Energy employees last month voted overwhelmingly in support of taking protected industrial action in support of a new enterprise agreement.

This followed moves by the company to terminate existing workplace agreements and cut the wages and conditions of thousands of employees across the state, the union claims.

The Electrical Trades Union said Essential Energy management was also seeking to impose a new workplace agreement that would allow the immediate sacking of 800 regional employees.

The strike ran from 9am to 1pm and included workers from 50 Riverina sites.