Proposals for a 400,000 volt power line cutting across countryside near Shrewsbury has attracted full scale opposition.
A series of public meetings has begun, with campaigners calling on all affected areas to fight the plans to feed electricity from newly-built wind farms in Mid Wales into the National Grid.
More than 1,000 people, many carrying placards, packed themselves into a public meeting on Saturday in Abermule, Powys.
And on Tuesday, a meeting had to move venue at the last minute from Meifod, Powys, because more than 300 villagers wanted to take part.
If given the go-ahead, pylons or underground cables would run from a new substation which will be built at either Cefn Coch or Abermule and take one of 10 suggested routes.
Although the National Grid is avoiding major towns and built-up areas, some suggested routes run close to Wattlesborough Heath, Forden, Worthen, Ford, as well as Walford Heath to the north.
Communities fighting the plans have been urged to join forces and campaign as one.Six weeks of travelling exhibitions have been launched.
National Grid spokesman Jane Taylor, speaking at an exhibition in Oswestry last week, stressed that no detailed route had been chosen and that public consultation would help decide where both the substation and the line would go.
Public exhibitions will be held at Baschurch Village Hall tomorrow, Friday, 2pm-8pm; Westbury Village Hall on Saturday, 10am-4pm; Pontesbury Public Hall on April 8, 2pm-8pm and Bomere Heath Village Hall on May 4, 2pm-8pm. Consultations continue and more information can be found online at www.national grid.com/midwalesconnection