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Southern Co

SONYSEElectric ServicesFiscal year ends December 31Also trades as SOJC, SOJD, SOJE, SOJF, SOMN
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 30, 2026Score 6/3012% above fair value
$94.61+0.90 (+0.96%)

Close on Nov 2, 2026Market cap $107.95BP/E 22.9Yield 3.11%

Southern Mississippi Power Company Utility Plant in Service by Quarter

Mississippi Power Company Utility Plant in Service — Gross ($M) ($M)

QuarterlyAnnual

Southern Mississippi Power Company Utility Plant in Service: $6,111M in Q2 2026, up 4.1% from a year earlier. That is the highest of the 14 quarters on record here.

Latest, Q2 2026
6,111
Period ended Jun 30, 2026
Change on a year earlier
+4.1%
5,873 in Q2 2025
History
14 quarters
Since Q4 2018
Sources
13
Documents cited below

Where the Q2 2026 figure comes from

Source: Southern Company 10-Q (10q_2026q2, filed 2026-07-30, 0000092122-26-000054) ↗

Reported in Form 10-K / 10-Q Co-Filing Registrant XBRL (`dei:LegalEntityAxis` & `srt:ProductOrServiceAxis`).

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedMississippi Power Company Utility Plant in Service — Gross ($M) ($M)Year on yearSource
Q2 2026Jun 30, 20266,111+4.1%Southern Company 10-Q (10q_2026q2, filed 2026-07-30, 0000092122-26-000054) ↗
Q1 2026Mar 31, 20266,057+5.1%Southern Company 10-Q (10q_2026q1, filed 2026-04-30, 0000092122-26-000034) ↗
Q4 2025Dec 31, 20255,972+4.8%Southern Company 10-Q (10q_2026q2, filed 2026-07-30, 0000092122-26-000054) ↗
Q3 2025Sep 30, 20255,888+4.6%Southern Company 10-Q (10q_2025q3, filed 2025-10-30, 0000092122-25-000084) ↗
Q2 2025Jun 30, 20255,873–Southern Company 10-Q (10q_2025q2, filed 2025-07-31, 0000092122-25-000076) ↗
Q1 2025Mar 31, 20255,765–Southern Company 10-Q (10q_2025q1, filed 2025-05-01, 0000092122-25-000042) ↗
Q4 2024Dec 31, 20245,697+3.2%Southern Company 10-K (10k_2025, filed 2026-02-19, 0000092122-26-000006) ↗
Q3 2024Sep 30, 20245,627–Southern Company 10-Q (10q_2024q3, filed 2024-10-31, 0000092122-24-000089) ↗
Q4 2023Dec 31, 20235,523+5.1%Southern Company 10-K (10k_2024, filed 2025-02-20, 0000092122-25-000018) ↗
Q4 2022Dec 31, 20225,254+2.9%Southern Company 10-K (10k_2023, filed 2024-02-15, 0000092122-24-000009) ↗
Q4 2021Dec 31, 20215,106+1.9%Southern Company 10-K (10k_2022, filed 2023-02-16, 0000092122-23-000012) ↗
Q4 2020Dec 31, 20205,011+3.2%Southern Company 10-K (10k_2021, filed 2022-02-17, 0000092122-22-000003) ↗
Q4 2019Dec 31, 20194,857-0.9%Southern Company 10-K (10k_2020, filed 2021-02-18, 0000092122-21-000006) ↗
Q4 2018Dec 31, 20184,900–Southern Company 10-K (10k_2019, filed 2020-02-20, 0000092122-20-000017) ↗

Cite this data

StockData. (2026). Southern Mississippi Power Company Utility Plant in Service ($M), quarterly Q4 2018–Q2 2026 [Data set]. Compiled from Southern SEC filings and investor materials. https://stockdatahq.com/stocks/so/kpis/xbrl-mpc-plant-in-service-gross-m

See every metric in the Southern KPI table. Data updated Nov 2, 2026.