Renewable Energy Certificates (RECs), also known as Green tags, Renewable Energy Credits, or Tradable Renewable Certificates (TRCs), are tradable environmental commodities which represent proof that 1 megawatt-hour (MWh) of electricity was generated from an eligible renewable energy resource.

These certificates can then be sold or traded on the open market and unlike carbon trading programs that increase the cost of emitting carbon, RECs act as an incentive & subsidy to produce more green energy.

Some but not all green hosting companies purchase REC’s to offset their use of non-renewable energy sources.

US Renewable Energy Certificate Products List

• US Department Of Energy

Canadian green power resource:

• pollutionprobe.org

Know of any other great US, Canadian or International REC info websites? Let us know.

Increasing numbers of web hosting companies are going green. Some are taking small steps by recycling & telecommuting to decrease their impact on the enironment. Other web host companies are making huge leaps by purchasing carbon offset credits or by switching to 100% renewable energy sources.

Some may argue that “green” hosting companies reliant upon purchasing Renewable Energy Credits (RECs) to offset their non-renewable energy usage aren’t “as green” as those that rely on 100% wind or solar energy to power their web hosting centers.

If you want your website powered using solar or wind energy, we’ve compiled this alphabetical  list of green hosting companies that offer 100% solar and/or wind powered hosting:

1. AISO

http://www.aiso.net/

• solar powered hosting

2. Athenaeum Ecological Hosting

http://www.ecologicalhosting.com/

• solar powered hosting

3. Green WebHost

http://www.greenwebhost.net/

• solar powered hosting

4. Greenest Host

http://www.greenesthost.com

• solar powered hosting

5. I Mountain

http://imountain.com

• solar powered hosting

6. Lightbeing Creations

http://www.lightbeingcreations.co.uk/

• solar powered hosting

7. Planet Mind

http://www.planetmind.net/

• solar powered hosting

8. Smart Bunker

http://www.smartbunker.com

• wind powered hosting

9. Solar Energy Host

http://www.solarenergyhost.com/

• solar powered hosting

10. Sustainable Websites

http://www.sustainablewebsites.com/

• wind powered hosting

11. Tap Root

http://www.taproothosting.com

• wind powered hosting

This list isn’t exhaustive and we haven’t tested the services of all of these companies. If you know of any other renewable-energy powered green website hosting companies? Let us know by commenting on this post below.