Investors in a key project of under-pressure energy company Solar 21 are to be told by their brokers that a move is being made to petition the High Court to appoint a liquidator to the so-called Project 2 Companies. Those entities were being used to fund a new waste-to-energy plant in England at a cost of up to £275 million. This Project 2 business was not part of a previous scheme of arrangement to restructure much of Solar21.  The two companies that make up the Project 2 Companies are EFW 21 Renewable Energy (Project 2) Ireland Limited and EFW 21…