Missouri § 393.1620 - Average and excess method, allocation of costs — limitation on commission consideration for general rates — expiration date.

Full text of Missouri Revised Statutes of Missouri § 393.1620 — Average and excess method, allocation of costs — limitation on commission consideration for general rates — expiration date., with citation guidance and answers to common questions.

§ 393.1620. Average and excess method, allocation of costs — limitation on commission consideration for general rates — expiration date.

1.  For the purposes of this section, the following terms shall mean:

(1)  "Average and excess method", a method for allocation of production plant costs using factors that consider the classes' average demands and excess demands, determined by subtracting the average demands from the noncoincident peak demands, for the four months with the highest system peak loads.  The production plant costs are allocated using the class average and excess demands proportionally based on the system load factor, where the system load factor determines the percentage of production plant costs allocated using the average demands, and the remainder of production plant costs are allocated using the excess demands;

(2)  "Class cost of service study", a study designed to allocate a utility's costs to each customer class on the basis of which customer class causes the costs;

(3)  "Commission", the Missouri public service commission;

(4)  "Electrical corporation", the same as defined in section 386.020, but shall not include an electrical corporation as described in subsection 2 of section 393.110;

(5)  "Production plant costs", fixed costs reflected on the electrical corporation's accounting books for the applicable test period, as updated or trued-up, associated with the production or purchase of electricity.

2.  In determining the allocation of an electrical corporation's total revenue requirement in a general rate case, the commission shall only consider class cost of service study results that allocate the electrical corporation's production plant costs from nuclear and fossil generating units using the average and excess method or one of the methods of assignment or allocation contained within the National Association of Regulatory Utility Commissioners 1992 manual or subsequent manual.

3.  This section shall expire on August 28, 2031.

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(L. 2021 H.B. 734)

Expires 8-28-31

---- end of effective  28 Aug 2021 ----

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Source: official Missouri text · Last verified 2026-08-27

Frequently Asked Questions About Missouri § 393.1620

What does Revised Statutes of Missouri § 393.1620 cover?

Section 393.1620 ("Average and excess method, allocation of costs — limitation on commission consideration for general rates — expiration date.") is part of the Revised Statutes of Missouri, the codified statutory law of Missouri. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Missouri § 393.1620?

A common citation format is "Revised Statutes of Missouri § 393.1620" (Missouri). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Missouri law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Missouri official source linked on this page or consult a licensed Missouri attorney.

How does Missouri § 393.1620 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Missouri can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Missouri.