FILING BY GAS UTILITIES

Subpart 1. Monthly reports. Gas utilities shall submit monthly to the department purchased gas adjustment reports, which must include: A. a summary of adjustments that were implemented in the previous month and the computation of each adjustment; B. an explanation of significant changes between the base gas cost and current cost, quantified as to changes in price and source of gas; C. the estimated previous month's and year-to-date commodity-delivered gas cost by supplier; D. estimated gas volumes purchased from suppliers whose gas rates are not regulated by the Federal Energy Regulatory Commission; and E. estimated costs of gas purchased in item D expressed as a percentage of all commodity-delivered gas costs and demand-delivered gas costs. The department shall summarize the monthly reports every three months and submit the summary to the commission for review. Subp. 2. Filing upon change in demand. Gas utilities shall file for a change in demand to increase or decrease demand, to redistribute demand percentages among classes, or to exchange one form of demand for another. A filing must contain: A. a description of the factors contributing to the need for changing demand; B. the utility's design-day demand by customer class and the change in design-day demand, if any, necessitating the demand revision; C. a summary of the levels of winter versus summer usage for all customer classes; and D. a description of design-day gas supply from all sources under the new level, allocation, or form of demand. Subp. 3. Notice. A gas utility shall provide notice to the intervenors in its previous two general rate cases of the availability of the change in demand filing when it submits the filing to the department. Subp. 4. True-up filing. Gas utilities shall file and implement on September 1 of each year the true-up adjustment computed under part 7825.2700 , subpart 7, for the previous year commencing July 1 and ending June 30.