The first housing estate in Wales to use zero energy from the national grid could soon be built on the site of an old paper mill in Cardiff.
The developers of Bedzed, a futuristic and award winning development in Surrey which is the first in Britain to generate all its own energy needs, are in ongoing talks with the Welsh Devlopment Agency to put 1,000 homes on brownfield land at Ely Bridge.
"We are driven by an absolute determination to show that the future is cool, trendy, fun, desirable and something to really look forward to." says Bedzed's architect Bill Dunster. "I've just had enough of negative environmental campaigners telling us the end is nigh".
The plan is revealed on Week In Week Out. It examines the need for a new generation of housing because of concerns about climate change. Our homes account for more carbon emissions than traffic.
Rachel Whitehead is building a house of straw bales, the first of its kind in Wales. "I think people are seeing that it's not such a hippy dippy thing to do" she says, "it's common sense".
Alone in Europe, the Assembly has a legal commitment to sustainable development. But its record so far has been dismal, according to the mainly isolated eco-enthusiasts who're building for tomorrow at the moment.
Some Useful Websites
I want to live in a warmer, greener House
If you want advice on how best to reduce your home's energy consumption, go to the Energy Savings Trust website. They have information on how to do it and what grants are available.
The Fuel Poverty scheme give grants of up to £2,700 to make your house warmer - and more miserly in energy use - by fitting new boilers, central heating and new loft insulation. You can find out if you are eligible - and apply direct - by going to the Eaga Partnership which administers the scheme.
If you want to fit renewable techonology to your home - solar panels, solar heating or wind - you find out what grants are available at Clear Skies.
Bedzed, Britain's first zero carbon rated housing develepment, are looking for clusters of interested people around the country and already have several people registered in the Cardiff area. Bioregional, their eco-financiers, are looking for other projects to fund.
In Carmarthenshire, Awel Aman Tawe, is a mine of information on various projects, including a development of 14 bungalows powered by biomass and a community windfarm.
To Gwyrdd (Green Roof) is trying to get a sustainable estate, which is also affordable for local people, off the ground in Newport, Pembrokeshire.
I'm a Small Business and I want to be Greener
If you run a business and want to waste less energy you should contact the Carbon Trust and if you want accreditation for being green there's a charity, the National Energy Foundation does just that.
Please note the BBC is not responsible for the content of external websites.
Will to live? (19/06/2007) The widow of a Swansea man who travelled to Switzerland to die is calling for a change in the law, so that terminally ill patients can be helped to end their lives in Wales.
Wasted Lives (12/06/07) More cannabis is being grown in Wales than is imported into the country, BBC Week In Week Out programme reveals.
Live debate special (05/06/07) Got a question for the party leaders in Wales? Find out how to put your questions forward for tonight's live debate special.