Under Net Metering Policy Pennsylvania has to basically run your electric meter backwards or another meter forward to pay you for electricity you generate thus essentially paying retail rates to the generating cutomer.
Pennsylvania’s residental rate is slightly over $.10/kwh. but since the dairy would not pay residental rates it wouldn’t recieve residental rate credits.
Given the lack of details all our calculations are a bit of guess work. We don’t know how much the grants were, was any money borrowed to pay for the digester and if so with what terms?, or the cost of operating the digester.
Still it’s a good idea but whether it can be done at or above a break even point is another question.
If you are residential sized this is true. But if you are a small power plant, this law does not apply or people would be building Natural Gas Turbine generators all over the state.