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Prepaid Pension and Accrued Pension Costs in Transmission Rate Base

In January 23, 200 in ER15-1436, FERC determined that Entergy’s proposal to include prepaid and accrued pension costs in its transmission formula rate has not been shown to be just and reasonable.  FERC’s finding is without prejudice to Entergy making a future filing that adequately demonstrates that its future proposal, including its methodology for calculating prepaid and accrued pension costs, is just and reasonable. 

First, FERC described pension accounting and when it is appropriate to include prepaid pension costs or accrued pension costs in rate base.  Prepaid and accrued pension costs can arise when a utility makes contributions to fund a pension trust in order to meet employee pension plan obligations.  The costs associated with the pension plans that are reported on the utility’s income statement are referred to as the utility’s “pension expense” or “net periodic pension cost.”  Pension expense for a given year includes pension obligations accrued that year, interest, and the return on the assets in the trust (specifically, the components of pension expense are service cost, interest cost, actual return on plan assets, gain or loss, amortization of unrecognized prior service cost, and amortization of the unrecognized net obligation of asset).  While pension obligations and interest increase pension expense, the return on the assets in the trust will generally decrease pension expense.  A utility generally receives recovery of pension costs based on the amount of pension expense recorded on the books.  Accordingly, a prepaid pension cost (an asset) is the amount by which cumulative contributions to a pension trust exceed cumulative pension expense.  An accrued pension cost (a liability) is the amount by which cumulative pension expense exceeds cumulative contributions.  As a general matter, it is just and reasonable for a utility to include prepaid pension costs in rate base when its pension expense recovered from customers is less than its contributions to fund pension costs (increase to rate base).  Likewise, it is just and reasonable for a utility to include accrued pension costs in rate base when it has recovered pension expense from customers in excess of its pension costs (reduction to rate base).

FERC found that Entergy had not demonstrated that its proposed formula for calculating prepaid pension costs is just and reasonable.  Consistent with the above explanation, the appropriate way to calculate prepaid pension costs includable in rate base would be to calculate the cumulative differences between each year’s pension contributions made by Entergy and pension expenses.  Entergy proposes to use a different formula (i.e., Funded Status minus Unrecognized Gains and Losses).  Although Entergy asserts that this formula leads to the same result, we find that Entergy has not adequately supported this claim. 

Specifically, Entergy’s proposed formula includes components that Entergy has not fully explained and that may not be appropriate to include in the calculation of prepaid pension costs to be included in rate base.  For instance, although Entergy argues that it is reasonable to calculate prepaid pension costs by starting with the plan’s Funded Status and backing out Unrecognized Gains/Losses, Entergy does not adequately explain what comprises Unrecognized Gains/Losses or why backing out those amounts to compute prepaid pension costs in rate base yields a just and reasonable result.  Without additional explanation, we are unable to evaluate whether Unrecognized Gains/Losses are an appropriate component to include in the calculation of prepaid pension costs to be included in rate base.

Furthermore, Entergy did not explain why using the Funded Status is an appropriate methodology to calculate prepaid pension costs in rate base.  Entergy explains that Funded Status equals Fair Value of Plan Assets minus Projected Benefit Obligation, but Entergy does not explain why using Funded Status and Unrecognized Gains/Losses yields the same result as calculating cumulative employer contributions and cumulative pension expense.  In some instances, it may be inappropriate to use Funded Status for calculating prepaid pension costs.  For example, Entergy’s actuarial disclosure includes a line item for employee contributions for the calculation of Fair Value of Plan Assets, which is a component of Funded Status.  However, employee contributions to a pension trust are not shareholder financed funds that the utility has paid out of pocket.  Consequently, it would not be just and reasonable for Entergy to include amounts that employees contribute to pension plans in rate base and earn a return on such amounts.

Lastly, FERC found that Entergy’s pension plan funding discretion did not, in and of itself, make Entergy’s proposal unjust and unreasonable.  Entergy states that it aims to fully fund its pension plans at the 100 percent level and to not let the funding levels fall below 80 percent.  Entergy is not required to provide a policy statement or other documents describing how it exercises its pension funding discretion.  As discussed above, while we are rejecting Entergy’s proposal to include a line item for prepaid and accrued pension costs in rate base, we note that, to the extent a utility has a line item for prepaid or accrued pension costs in its transmission formula rate and customers are concerned the utility has funded its pension plans at levels that are not prudent, they may challenge the utility’s pension funding levels when the utility files its annual transmission formula rate updates.

Paul Dumais's picture

Thank Paul for the Post!

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