Back in 2007, while gearing up for the billions of dollars that PJM's coal-fired Project Mountaineer transmission projects would cost, FERC issued Order No. 494, which socialized the cost of these exorbitantly expensive, unneeded projects over a larger customer base. Once authorized by FERC in the Order, PJM changed its cost allocation methods to adopt the “postage-stamp” method of allocating the cost of new transmission in its RTEP that operates at or above 500 kV. Prior to Order No. 494, all new transmission was paid for through a “license plate” methodology whereby those who directly benefited from the project would shoulder the cost.
Under a license-plate (or zonal) rate design, a customer pays the embedded cost of transmission facilities that are located in the same zone as the customer. A customer does not pay for other transmission facilities outside of the zone, even if the customer engages in transactions that rely on those zones.
Under a region-wide, postage-stamp methodology, all transmission service customers in a region pay a uniform rate per unit-of-service, based on the aggregated costs of all covered transmission facilities in the region.
Due to these new postage stamp rates, a high percentage of regional load, and the wide geographic reach of the PJM region, customers in Illinois suddenly found themselves being charged the second highest percentage of eastern PJM’s Project Mountaineer costs.
“However, the cost shifts that would be incurred by switching from the DFAX methodology to the postage-stamp methodology are significant, resulting in western zones paying between 1,260 percent and 22,500 percent more for these facilities.”
The Illinois Commerce Commission objected to this inordinate cost, compared to “benefits” received, and the issue ended up before the 7th Circuit Court of Appeals. In October of 2009, the Court remanded the rate methodology back to FERC, finding that the Commission had not provided sufficient record evidence to justify its findings that the existing allocation practice for new facilities at and above 500 kV was unjust and unreasonable, and the Commission had not adequately supported its conclusion that the postage-stamp methodology was just and reasonable. The court found that the Commission’s reliance on the difficulty of measuring benefits for above 500 kV facilities, and the resulting likelihood of litigation, failed to justify the Commission’s decision. The court stated that the Commission had failed to show “the absence of any indication that the difficulty exceeds that of measuring benefits to particular utilities of a smaller-capacity transmission line.” The court further found that the Commission failed to justify requiring PJM to adopt a region-wide, postage-stamp cost allocation methodology for new transmission facilities that operate at or above 500 kV.
However, the court also recognized that, in comparing costs and benefits, the Commission “does not have to calculate benefits to the last penny, or for that matter to the last million or ten million or perhaps hundred million dollars.” FERC seems to have taken this to heart in their Order on Remand, issued on Friday. To summarize, the Order determined that allocating costs of transmission enhancements that operate at or above 500 kV to utility zones using a postage-stamp cost allocation methodology is a just, reasonable and not unduly discriminatory method of allocating the costs of these new facilities.
In order to get there, FERC provided what it feels is the justification the court found missing in Order No. 494.
“In summary, ComEd, along with the other western utilities, will receive significant benefits from the new 500 kV and above projects that prevent the degradation of the PJM transmission system and maintain the capability to continue to produce up to $2.2 billion in estimated system-wide savings each year, as indicated by the ISO/RTO metrics report, along with additional estimated annual savings associated with decreased service interruptions and power quality disturbances, reduced line losses, and reduced congestion. These estimated annual, system-wide savings totaling approximately $2.2 billion compare favorably to the annual, system wide costs of approximately $1.3 billion for the facilities at issue here. In total, PJM’s transmission system provides ComEd’s customers with access to savings of approximately $320 million to $468 million each year. While we recognize that there is imprecision in valuing the benefits of new 500 kV and above facilities, these estimated savings identified herein provide sufficient justification for allocating approximately $198 million per year in costs to ComEd under the postage stamp methodology for new transmission facilities necessary to maintain the integrity and reliability of the existing system so that customers will continue to have access to savings and to provide for future needs.”