Green Streets 2009 is getting underway and we want to hear from communities with an energy efficiency idea.

The aim is to energise Great Britain's communities to reduce energy usage, cut carbon emissions and generate renewable energy from local sources.

We're looking for community groups with innovative ideas around saving energy or generating energy from local, renewable sources. You might not have formed your community group just yet, but if have the idea and the motivation to see it through we'd love to hear more.

British Gas will provide the funding, support and technical expertise to develop and implement these ideas.

You will compete against other projects for the chance to win a prize worth up to £100,000 to invest in their community.