The prime minister's office objected to the idea of a public information campaign on reducing energy use.
There is a plan to encourage household energy saving, according to a source.
The Climate Minister denied that a campaign had been stopped.
He said the UK's energy was safe.
The message about power cuts was based on a worst case scenario of gas shortages.
The Department for Business, Energy and Industrial Strategy was considering a plan to encourage people to switch off their heating and appliances during the winter.
The Department of Health and Social Care was stopped from taking the plan forward because of objections from the Prime Minister's Office.
DHSC sources said they didn't believe they had played a role in any decision, but that there might be concern about elderly people being afraid to turn on their heating.
According to the Times, the intervention came when National Grid issued its warning.
More than 40% of the country's electricity is generated by gas-fired power stations.
In the unlikely event of a gas shortage, homes and businesses in the UK could face three-hour planned power cuts.
National Grid is planning to reward users who reduce demand at peak times.
Mr Stuart said he was confident the government had done everything it could to make sure there was no need for energy rationing.
He said that they made plans for all scenarios.
Prime Minister Liz Truss made a promise during the Conservative leadership campaign that there would be no rationing of energy.
"We have a good supply of energy in the UK," she said when asked if she could guarantee there wouldn't be power cuts.
There are no plans for the government to tell the public to reduce usage.
We are confident that the steps we are taking will protect the security of electricity and gas supplies in the UK.
Mr Stuart said there would not be a government led effort to get people to reduce usage.
The prime minister's team did not block a well-developed campaign.
The business secretary, Jacob Rees-Mogg, was said to have signed off on the plans for the public information campaign.
There were concerns that the campaign would be too interventionist.
The prime minister talked about freedom in her speech.
She said she wouldn't tell you what to do or what to think.
Many people are already changing their behavior and saving energy, so is a campaign needed?
People with knowledge of a campaign say they don't understand why it's being blocked. They say it's somewhat incomprehensible.
Guy Opperman said he would support an energy saving campaign that would help people and the taxpayer.
"Preserving supply, saving money for everyone, and encouraging localism is what this is about," he wrote.
Fuel bills have gone up and supplies of oil and gas have gone down because of Russia's invasion of Ukraine.
Europe is scrambling to shore up supplies as gas flows from Russia are limited.
A new oil and gas exploration licensing round was launched on Friday as the government seeks to boost energy security.
The energy support package was put in place by the government.
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