From a presentation by Michael Vickerman at the 2009 Wisconsin Renewable Energy Summit, Milwaukee, March 25-28:

Value Proposition to System Owner
+ Less expensive (on a life-cycle basis)
+ Predictable return
+ Negligible risk

Value Proposition to Society
+ Emission-free
+ Non-depleting
+ Indigenous
+ Highly secure

SHW Potential in Wisconsin
+ Can offset between 2.6% to 4.1% of NG use
+ Avoiding 150 million therms/year
+ Saving $150 million annually (2006 prices)
+ Offsetting 820,000 metric ton of CO2