There has been limited research on the recent increase in US anaerobic dairy digesters. We use panel data to estimate a double hurdle model that predicts both the probability that a county has a dairy digester and the number of digesters in counties that have them. Dairy farms and retail electricity prices affect dairy digesters. although the parameter estimates are inelastic. https://www.roneverhart.com/Hohner-C-7-NS-Harmonica-Carrying-Case-p36684/