What is the main development reported in this 8-K filing?

The main development is the Mississippi Public Service Commission's (PSC) issuance of an order that adopts a stipulation for the rate recovery of costs associated with the in-service assets of Mississippi Power's Kemper Integrated Gasification Combined Cycle (IGCC) facility. This order establishes permanent annual retail rate recovery of approximately $126 million.

What does the 'prudence finding' mean for investors?

The 'prudence finding' means that the Mississippi PSC has determined that the costs included in the stipulated revenue requirement for the in-service Kemper IGCC assets were incurred prudently. This is a significant positive for investors as it validates a portion of the project's costs for recovery through customer rates.

How will the new permanent rates affect customer bills, and what happens to the interim rates?

The new permanent rates will result in an annual revenue of approximately $126 million for Mississippi Power. Upon implementation of these permanent rates, the interim rates that were previously collected will be terminated. Mississippi Power will then issue credits to customer bills within 90 days for the difference between the interim rates collected and the newly established permanent rates.

Are all costs for the Kemper IGCC facility now approved for rate recovery?

No, not all costs are definitively approved for rate recovery through this order. The order primarily addresses the in-service assets and provides for a specific annual revenue requirement. Any costs excluded, reduced, or compromised in this revenue requirement calculation will be deferred as regulatory assets and will be addressed in a future prudency hearing or a rate case expected after the entire Kemper IGCC project is commercially operational.

SOUTHERN CO 8-K SEC Disclosure

Summary

This 8-K filing from Southern Company (SO) pertains to a significant regulatory development concerning Mississippi Power's Kemper Integrated Gasification Combined Cycle (IGCC) facility. On December 3, 2015, the Mississippi Public Service Commission (PSC) issued an order adopting a stipulation regarding the recovery of costs for the in-service Kemper IGCC assets. This order establishes permanent retail rate recovery of approximately $126 million annually, based on specific capital structure and return on equity parameters, and importantly, includes a prudence finding for these costs. This development provides a clearer path for cost recovery, although it does not resolve all outstanding issues related to the Kemper IGCC project.

Key Highlights

1Mississippi PSC issued an order adopting a stipulation for the Kemper IGCC facility's In-Service Asset Proposal.
2Permanent retail rate recovery for in-service Kemper IGCC assets set at approximately $126 million annually.
3Order includes a prudence finding for all costs within the stipulated revenue requirement for in-service assets.
4The permanent rates are based on Mississippi Power's actual average capital structure, with a maximum common equity of 49.733% and a 9.225% return on equity.
5Upon implementation of permanent rates, interim rates collected will be reconciled, with customer credits for the difference issued within 90 days.
6Mississippi Power must file a subsequent rate request within 18 months.
7Costs excluded or reduced in the revenue requirement calculation will be deferred as regulatory assets for future consideration.

SOUTHERN CO 8-K Report, Corporate Update (Dec 4, 2015)

Summary

Key Highlights

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