A rift is widening in Coalition ranks over renewable energy targets, with several Liberal MPs planning to publicly defy the party line by attending a Tea Party-style anti-wind farm rally at Parliament House in Canberra.

The rally is scheduled for June 18 and is being promoted through a clandestine group using a website called StopTheseThings.com, which provides no names of organisers or authorisations, but posts a picture of Tiananmen Square in an apparent effort to encourage defiance.

Senator Chris Back. Credit:Andrew Meares

It also posts comments from contributors claiming God is on their side in their bid to rid the nation of wind farms.

Shock jock Alan Jones is certainly on their side and is named on the website as master of ceremonies for the upcoming event, which is being touted as the ''Wind Power Fraud'' rally.