The Northern Territory government insists major projects are going ahead, despite the collapse of the company behind some of its biggest plans. 

The $30 billion Sun Cable project - planned to be the world's largest solar farm - is now in doubt after a dispute about project financing between the energy company’s two main shareholders allegedly forced it into voluntary administration.

The shareholders - billionaires Andrew ‘Twiggy’ Forrest and Mike Cannon-Brookes - reportedly disagreed about the amounts of cash that Sun Cable was spending, and its alleged failure to meet requirements of its venture capital funding agreement.

The collapse is just the latest in a series of serious issues with the Northern Territory’s economic plans, including problems with Darwin's $515 million ship lift project, the giant Project Sea Dragon prawn farm, and Santos’ Barossa gas project.

This week, the NT’s Acting Chief Minister Nicole Manison said she has received “big assurances” about the future of the Sun Cable project.

“They're going through some shareholder issues and they are resolving them, and they are anticipating they are going to resolve them very swiftly and get on with business,” Ms Manison told reporters.

“They are confident they will be out of the voluntary administration process swiftly and that we can have confidence in the future of this fantastic project.”

Ms Manison said the company told her that the voluntary administration should last a number of months.

NT Chamber of Commerce chief Greg Ireland said he strongly hopes Sun Cable will go ahead, as its failure would be a major blow to the NT economy.

“I think the main loss for the territory will be confidence in the business environment, moving forward,” he said.

“It's a substantial project. There's a lot of money going to be flowing through the territory on the back of projects like this, and that doesn't certainly help us with business confidence moving forward.”