Specifications include, but are not limited to: Solicit proposals to analyze the advance prudence application and provide testimony on behalf of the ratepayers of Northern States Power Company. Contractor must provide a detailed analysis and conclusion related to the necessity and the economic prudence for NSP’s proposal to acquire the Dakota Range III Wind Facility. Of specific interest in this case, advocacy staff is interested in determining the reasonableness of the Company’s energy and demand forecasts, the cost of the facility, modeling inputs, sensitivity analysis, and the results as submitted by NSP. The selected offeror must review and use the already provided material before submitting data requests. Sending hundreds of “canned” data requests that the selected offeror has no intention of using the responses to evaluate the case will not be allowed. The data requests that are submitted must be clear, concise and likely to produce useful information for the case. The commission ratepayer advocacy staff has a right to review the data requests to ensure their value.