Cabinet Minister Ed Davey opened a pop up energy advice centre in Newhaven High Street during a visit on Thursday November 13.
Community Energy South is using the shop to help Newhaven residents with energy bills.
The minister also launched a nationwide £10m fund for urban community energy projects to help communities take control of their energy, get a better deal on energy and cut bills by generating their own renewable energy.
The Urban Community Energy Fund will give community groups the chance to bid for grants of up to £20,000, or loans of up to £130,000.
Lewes district council leader Rob Blackman said: “I am very happy that Ed Davey, Secretary of State for Energy and Climate Change has come to Newhaven to open the energy pop-up advice centre which will advise local people on how to manage their fuel bills.
“We want to promote the area as a clean technology hub with developments such as the Rampion wind farm and the University Technical College.
“I am pleased that the Secretary of State has visited some of the local businesses that are putting Newhaven on the map as a technology and clean energy hub.”