Advocates say Iowa utility’s proposal could lead to fee for solar customers

An Iowa utility that failed earlier this year to impose new constraints on solar customers is making another attempt in its currently pending rate case. Interstate Power & Light has asked the Iowa Utilities Board to allow it to create two new rate classes for “partial requirements” customers — those who generate some of their own energy. The utility has not requested a new rate for solar customers, but clean energy proponents suspect it will be coming if the Iowa Utilities Board approves the proposed new rate classes. In another move that would tend to impinge on efforts to reduce energy use, the utility has asked for a $3 increase in the fixed monthly fee for residential customers. The utility wants to raise the fixed fee by $6.20 for small business customers.