I think fuel cells have even a greater percentage long term. Again, fuel cells are perhaps fifteen to twenty years behind where wind is today, but because the stationary fuel cells that we're developing can utilize the existing natural gas infrastructure rather than a new hydrogen infrastructure or an intermittent renewable source like the wind, there is actually the potential for greater than a 10% contribution of power generation over the long term. But again, reaching that 10% level would probably occur in the context of twenty years or so.
On October 16th, 2006. See this statement in context.