Well nearly everything is feasible in the right circumstances and all that is needed is for demonstrations to illustrate how things can be achieved. Seeing the thing working and having someone to consult can break down all the imaginary barriers we all invent.

In New Zealand I have been happily drinking rain water from the roof of our house for the last five years and the guy at the top of the hill has a 200ft bore that supplies his own freshly filtered ground water. In the UK that idea is unthinkable.  This indicates that there are many ways of doing things that might not necessarily be obvious. In some countries it might be routine for a riverside village to establish their own micro-hydro facility and then sell the power back to the power company for example.

The Case Studies I have chosen illustrate the sort of ideas that have emerged and been put into practice around the world to save energy, water and as an off shoot, time. The closing gambit in many of the examples is that opting for the conservation of energy or water also saves money. It’s good ethics as well as good business sense. You can’t help feeling optimistic. 

For specific subjects see below.

NZ - http://cope.org.nz/sunpower.htm
WORLDWIDE - www.caddet.org/index.php
WORLDWIDE - www.sustainablecases.cfm
WORLDWIDE - www.grida.no/climate/318.htm
EUROPE - www.managenergy.net/Scs.htm
WORLDWIDE - www.martinot.info/case_studies.htm
US - www.eere.energy.gov/topic.cfm
UK - www.est.org.uk
US - www.cleanenergyresourceteams.org
WORLDWIDE - www.energyhouse.com
US - www.nps.gov
WORLDWIDE - www.greenroofs.com

JAPAN - www.sunsonline.org
UK - www.ntseducation.org.uk
US - www.awea.org/faq/cases/
AUS - www.sustainability.dpc.wa.gov.au/
UK - www.qinetiq.com
JAPAN - www.uptenergy.com

JAPAN - http://inet.museum.kyoto-u.ac.jp
US - www.bergey.com/School/NSF.Paper.htm
INDONESIA - www.bergey.com

THAILAND - http://sgp.undp.org
US - www.attra.org/attra-pub/solarlswater.html
US - www.montanagreenpower.com

US - www.phillysolar.org
NEPAL - http://sgp.undp.org
AUS - www.greenpeace.org.au
US - www.akeena.net
US - www.michigan.gov
HAWAII - www.powerlight.com
UK - www.greenenergy.org.uk
WORLDWIDE - www.solarpaces.org

UK - www.esru.strath.ac.uk
FRANCE - www.esru.strath.ac.uk
UK - www.oref.co.uk
US - www.epri.com
US - www.worldchanging.com
US - www.waveberg.com
CANADA - www.bluenergy.com
KOREA - http://english.donga.com

PERU - www.grida.no
KENYA - www.tve.org/ho/doc.cfm?aid=871
INDIA - http://sgp.undp.org
INDONESIA - http://sgp.undp.org
AUSTRALIA - www.greenhouse.gov.au
KENYA - www.itdg.org

AUS - www.ballarat.edu.au
AUS www.sea.vic.gov.au
UK - www.goingsolar.co.uk
US - www.wbdg.org
INDIA - http://sgp.undp.org
ISRAEL - www.solel.com/products
GREECE - www.react.novem.org

UK - www.talbotts.co.uk
EUROPE - www.opet-chp.net
UK - www.energy-efficiency.org
US - www.nyserda.org
UK - www.dti.gov.uk

IRELAND - www.ichpa.com
WORLDWIDE - www.iea-dhc.org
UK - www.archive2.official-documents.co.uk
INDIA - www.vericor.com
UK & SPAIN - www.bowmanpower.co.uk

IRELAND - www.bnsrd.com
SWEDEN - www.sydkraft.se
SRI LANKA - www.itdg.org/?id=biogas
AUSTRALIA - www.ballarat.edu.au

NEW ZEALAND - www.passivehouse.org.nz
> US - www.eere.energy.gov
AUSTRALIA - www.anu.edu.au

US - www.hydro-temp.com
US - www.econar.com
UK - www.dti.gov.uk
US - www.waterfurnace.com
CANADA - www.energyaware.bc.ca
CANADA - www.earthenergy.ca

www.greenbuilder.com

UK - www.kensaengineering.com
US - www.colmaccoil.com

UK - www.greenbuildingstore.co.uk
AUSTRALIA - www.greenhouse.gov.au
US - www.p2pays.org/ref/05/04650.htm
AUSTRALIA - www.deh.gov.au
THAILAND - www.unesco.org
NEW ZEALAND - www.rodney.govt.nz
INDIA - www.akash-ganga-rwh.com
NEW ZEALAND - www.earthsong.org.nz

US - www.enterprisefoundation.org
US - www.builtgreen.net
US - www.wncgbc.org
NEW ZEALAND - www.earthsong.org.nz
UK - www.archive2.official-documents.co.uk
CHINA - http://chinahousing.mit.edu

www.theenergyguy.com