Measures such as insulation, heating and domestic renewables in households identified as fuel poor.
People in rural and island areas will be offered the same service as those in easier to reach parts of Scotland.
The Home Energy Scotland campaign has also been launched to encourage people to call the hotline 0808 808 2282 and take advantage of the free help to reduce fuel bills.
It will provide advice on how to reduce heating bills and which of the home energy improvement schemes, including Warmer Homes Scotland, they are eligible for.
Sturgeon said: “Through this scheme, the Scottish Government will deliver the best possible help to thousands of people who are blighted by fuel poverty, struggling to keep their homes warm and pay their energy bills.
“Warmer Homes Scotland is tailored to give vulnerable households living in fuel poverty access to measures to make their homes more energy efficient.”