In an move which will embarrass the SNP government, members at the party’s virtual conference, backed a motion to create a company by 527 votes, to just six against.
However earlier this week, Scottish ministers came under fire after it emerged their plans to set up a state-owned energy firm had been abandoned.
Nicola Sturgeon announced four years ago the intention to establish a not-for-profit national energy company that would deliver low-cost green power to households across the country, helping to reduce fuel poverty and tackle climate change.
Instead Net Zero minister, Michael Matheson, said efforts will now focus on the creation of a “new dedicated national public energy agency” a move branded “a total dereliction of duty”.
Addressing the SNP conference, Rob Gibson of the party’s Cromarty Firth branch moved the motion, demanding the creation of an energy company, otherwise, he said: “Scotland will remain an energy company under London rule.”
He said: “We need a Scottish electricity grid not beholden to shareholder dividends but to serve our citizens. We demand social justice and fairness.
"Scotland's clean power produced in communities and nationally has many options among them – on and offshore wind, hydro, solar, tidal and maybe even wave power down the line.
"Access to fair prices for producers and consumers are a no brainer. Each is stymied today by the Tory obsession with nuclear power.”
Mr Gibson urged the government to “unchain Scotland's energy potential” from UK policies which “line shareholders pockets in a Thatcher legacy of profits for the few and expensive tariffs for the many”.
Dumfries and Galloway Councillor Katie Haggman backed the motion, and an amendment which said such a company should prioritise “the delivery of affordable energy to customers of limited means”.
Another member, Roland Chapman, asked delegates to “stand up to an economic system that has... allowed one of our greatest resources in Scotland to be taken from us. Highland clearances never again.
"Our demand is for this new national energy company, to have a remit progressively to take over the harnessing of distribution of Scotland's immense renewable energy potential.”
Marianna Clyde of Edinburgh’s Meadows and Morningside branch added: "The proposal for a national energy company was announced in 2017. But in the recent programme for government, there's been announced another agency, which is appears to be advisory only.
"I feel that we must do much, much more than simply advise Scottish public and local authorities on energy efficiency measures.”
Responding to the vote, Scottish Labour’s Net Zero spokesperson Monica Lennon said “The SNP government is out of touch with what its members want and what Scotland needs. Its chronic lack of ambition is becoming embarrassing.”
However Liam Kerr, the Tory Net Zero spokesman said the idea was a “failure” on which the SNP had already spent £500,000. “Like so many of their pledges over the years, it was all headlines and no substance,” he said.
An SNP spokesperson said the party conference had “made clear its support for the accelerated decarbonisation of Scotland’s energy supply and usage.”