Which Green energy tariff?

I've just been talking to a friend about Green energy tariff's, about which I posted up some information on the Cure Cafe recently. I've reproduced the information below, I hope it's useful if you're looking into Green tariffs! I'd be very interested to hear any comments or experience with green tariffs if you have any - please just comment on this post.
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Saturday, December 16, 2006
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Switching to a green energy tariff is a simple and effective way of reducing your carbon emissions. However, with no verification scheme currently in place to back up suppliers claims of 'greenness', it can be a confusing process.


To improve this situation, the independent gas and electricity watchdog Energywatch are offering a 'Going Green' guide, which can be found here

Energywatch and the National Consumer Council have conducted a study on this topic. The report 'Reality or Rhetoric? Green tariffs for domestic consumers' includes useful descriptions of companies and the tariffs they offer.