Company: EAI
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0000065984-25-000012
Chunk: 744

Company: ENTERGY ARKANSAS, LLC
Filing Date: 2025-02-18
Form: 10-K
Item: Item 7
Chunk 744
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 certain customers through special tariffs, contracts, or renewable program subscriptions, and those customers retain the exclusive claims to all associated environmental attributes, renewable energy credits, and other relevant clean energy certifications.

(d)Includes generation from both owned and purchased power resources.

(e)Excludes MISO purchases and renewables purchased through purchased power agreements.

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Table of ContentsPart I Item 1Entergy Corporation, Utility operating companies, and System Energy

(f)In December 2013, Entergy integrated its transmission system into the MISO RTO.  Entergy offers all of its generation into the MISO energy market on a day-ahead and real-time basis and bids for power in the MISO energy market to serve the demand of its customers, with MISO making dispatch decisions.  The MISO purchases metric provided for 2024 is not projected for 2025.

Some of the Utility’s gas-fired plants are also capable of using fuel oil, if necessary.  Although based on current economics the Utility does not expect fuel oil use in 2025, it is possible that various operational events including weather or pipeline maintenance may require the use of fuel oil.

Natural Gas

The Utility operating companies have long-term and short-term firm and interruptible gas contracts for both supply and transportation.  Over 70% of the Utility operating companies’ power plants maintain some level of long-term firm transportation.  Long-term, short-term, and spot-market purchases satisfy gas requirements.  Entergy Texas owns a gas storage facility and Entergy Louisiana has a firm storage service agreement that provide reliable and flexible natural gas service to certain generating stations.

Many factors, including wellhead deliverability, storage, pipeline capacity, and demand requirements of end users, influence the availability and price of natural gas supplies for power plants.  Demand is primarily tied to weather conditions as well as to the prices and availability of other energy sources.  Pursuant to federal and state regulations, gas supplies to power plants may be interrupted during periods of shortage.  To the extent natural gas supplies are disrupted or natural gas prices significantly increase, the Utility operating companies may in some instances use alternate fuels, such as oil when available, or rely to a larger extent on coal, nuclear generation, and purchased power.

Coal

Entergy Arkansas has committed to seven one- to three-year contracts that will supply at least 85% of the total coal supply needs in 2025.  These contracts are staggered in term so that not all contracts have to be renewed the same year.  If needed, additional