Renewable Energy Assurance

http://www.realassurance.org.uk

MCS

http://www.microgenerationcertification.org

NICEIC

http://niceic.com

Corgi

http://www.corgi-membership.com

BRE

http://www.bre.co.uk/page.jsp?id=1332

http://www.communitysustainable.org.uk

Gemserve

http://www.gemserv.com

Energy Saving Trust

http://www.energysavingtrust.org.uk

http://www.energysavingtrust.org.uk/cashbackcalculator

UK Legislation

http://www.legislation.gov.uk/uksi/2008/675/contents/made

Carbon Trust

http://www.carbontrust.co.uk/Pages/Default.aspx

OFGEM

http://www.ofgem.gov.uk/Pages/OfgemHome.aspx

Micropower

http://www.micropower.co.uk

Centre for Alternative Technology

http://www.cat.org.uk/index.tmpl?refer=index&init=1

Alchemy Consultancy Services

http://www.alchemy-csl.com

Wavelength Creative

http://www.wavelengthcreative.com