The Tasmanian Government is hoping its new energy strategy will deliver cheaper power for businesses and residents.

The State Government has called for public comment as it tries to develop a 20-year strategy.

It has released an Issues Paper that outlines key themes it wants considered.

Energy Minister Matthew Groom said the main focus was delivering cheaper power for all customers.

"In recent years this has been the subject of a lot of angst in the community," he said.

The paper has suggested the state's biggest businesses may end up paying lower prices.

Mr Groom said it was important people recognised the role of the state's big energy users, on top of providing jobs.

"They contribute significantly to the economy, about $2.5 billion annually," he said.

"They're also significant users of our power and if they were to move away from the state then that would deliver very significant upward pressure on power prices."

The paper also showed Tasmanians on low incomes were spending almost 8 per cent of their income on energy.

Tony Reidy from the Council of Social Service said lowering power costs to encourage investment should not come at the expense of Tasmania's most vulnerable.

"Any reduction of power prices is most welcome, of course," he said.

"What we need to make sure is when we put together an energy future for our state that it actually recognises our ability to produce good, clean green power and brings that benefit to all households."

The energy strategy is expected to be finalised by the end of the year.