So many of you have been inspired to write to us for more information about what you've seen in our Ethical Man series.
Producer Sara Afshar has put together a list of useful links:
The BBC is not responsible for the content of external internet sites
Organisations that give advice on saving energy:
Energy Saving Trust: www.est.org.uk
National Energy Services: www.nesltd.co.uk
Association for the Conservation of Energy: www.ukace.org
Home Heat Helpline: 0800 33 66 99
Portable Meters:
The Electrisave (the device Justin used in his report): www.electrisave.co.uk
Wind Turbines and Microgeneration:
British Wind Energy Association - advice on wind turbines: www.bwea.com
Micro Power - promotes home-based and small scale sustainable power generation: www.micropower.co.uk
DIY wind turbine that Justin tried in his garden: www.windtrap.co.uk
Wind turbine that Justin has applied for to go on his roof: www.windsave.com
Eco-architects:
Zedfactory: www.zedfactory.com (who are helping Justin with his turbine)
Switching to a Green Energy Supplier:
Green Electricity Marketplace - website that gives you advice on and compares green energy suppliers: www.greenelectricity.org
Thermal Imaging:
Ti Thermal Imaging (who did the thermal imaging for Justin's house): www.thermalimaging.co.uk