No guarantee Tasmanian households won't be hardest hit by Marinus Link bill

One critic says there are "so many unknowns the require clear answers before we really commit to such a major project". (Supplied: TasNetworks)

It was the hot topic of letters between former prime minister Scott Morrison and the Tasmanian government — and it appears there's still no guarantee Australia's poorest state won't pay half the cost of a massive new power project and reap a fraction of the benefits.