In doing some site selection research recently I came across a pretty revolutionary green hotel in Kyoto!
Get this: Not only do they offer a green guest room program, but if you take part they credit you 500 yen per night (about $5 US)! A great way to help discount your internet access in my opinion, or pay for an afternoon tea (organic of course!). I'm not sure if they do it for meetings, but a pretty radical and innovative idea!
The property is the Kyoto Takaragaike Prince Hotel.