There are many organisations around the world trying to support moves towards a sustainable energy future: many international environmental pressure groups like Greenpeace and Friends of the Earth have campaigns to that end, and the various national and international governmental agencies can provide information on specific policies and programmes. The UK's Department of Trade and Industry has a Sustainable Energy programme and its web-site provides updates on developments: http://www.dti.gov.uk/energy/renewables/index.shtml. The US Department of Energy offers similar services: see their renewable energy and energy efficiency service on the World Wide Web: http://www.eren.doe.gov/.
For independent analysis and up-to-date reports on developments you may find it useful to contact the following:
Centre for Alternative Technology, the UK's main public demonstration centre for renewable energy and allied green technologies. It also provides information on do-it-yourself approaches and has an extensive range of publications and a journal Clean Slate. CAT, Machynlleth, Powys SY20 9AZ, UK. Tel: +44 (0) 1654 702400. Fax: +44 (0) 1654 7002782. Web-site: http://www.cat.org.uk.
CREST, Centre for Renewable Energy and Sustainable Technology, 777N Capitol St, NE Suite 805, Washington, DC 2002, USA. Tel: +1 202 289 5370. Fax: +1 202 289 5354. e-mail: email@example.com. World Wide Web pages: http://www.crest.org/.
See also the US renewable energy news service, Solar Access: http://www.solaraccess.com.