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Tombigbee Electric Power Assn

Tombigbee Electric Power Assn is a member-owned cooperative, serving 37,296 residential accounts in Mississippi. Everything below comes from its own 2024 filing with the US Energy Information Administration — the numbers the company reported about itself.

Average residential rate
$0.122/kWh

2024 annual average

Homes with solar
None reported

in 2024

Rooftop capacity
—

residential, net-metered

What households here pay

Residential customers on Tombigbee Electric Power Assn's own supply paid an average of $0.122 per kWh across 2024 — total residential revenue divided by total residential kilowatt-hours sold, so it includes the fixed monthly charge, riders and fuel adjustments, not just the headline energy rate. It is the number your own bill would produce if you divided the annual total by the kWh.

Mississippi's statewide average was $0.149/kWh in June 2026 on EIA's monthly series. This utility's 2024 average ran about 18% below that. The two figures are measured differently and are two years apart, so read the gap as direction, not as a precise difference.

That made it the 2nd cheapest of the 13 Mississippi utilities on this site in 2024.

What it did between 2020 and 2024

Tombigbee Electric Power Assn's all-in residential rate went from $0.106 in 2020 to $0.122 in 2024 — a rise of 15.3%. Each year is that year's own Form 861 filing, worked out the same way as the figure above.

Across the 505 utilities on this site the middle one moved up 15.7% over the same years, so Tombigbee Electric Power Assn moved with the pack. Rates rose almost everywhere in this window; the comparison is what says whether a number is unusual.

$0.106 2020
$0.109 2021
$0.121 2022
$0.119 2023
$0.122 2024

Residential revenue over residential sales, bundled service only, from each year's EIA Form 861.

How many neighbours already did it

Tombigbee Electric Power Assn reported no net-metered residential solar for 2024. That can mean the programme does not exist, that it is full, or simply that nothing was filed — the form does not distinguish. Check with the utility before assuming an array can be interconnected on standard terms.

The rule that decides this, and it changed

The 30% federal residential credit (§25D) expired for systems placed in service after 31 December 2025. Every payback figure written before 2026 — including anything quoted at you by an installer working from an old spreadsheet — is overstated by roughly a third for a purchase. Leases and PPAs still reach §48E until the end of 2027, which is why the ownership question now decides more than the hardware does.

Run the Mississippi numbers on 2026 rules →

Other Mississippi utilities

Utility Accounts Avg rate Solar per 1,000
Entergy Mississippi LLC 384,611 $0.132 1.6
Mississippi Power Co 157,437 $0.145 3.2
Coast Electric Power Assn - (MS) 82,510 $0.138 4.7
Singing River Elec Cooperative 72,343 $0.135 —
Southern Pine Electric Cooperative 65,176 $0.140 0.8
Pearl River Valley El Pwr Assn 52,077 $0.143 2.1
4-County Electric Power Assn 41,076 $0.129 —
Dixie Electric Power Assn - (MS) 37,803 $0.134 1.0
Magnolia Electric Power Assn 31,070 $0.150 2.5
Central Electric Power Assn - (MS) 30,905 $0.122 —
Northcentral Mississippi E P A 29,136 $0.125 —
North East Mississippi EPA 26,142 $0.134 —

Where these numbers come from

US Energy Information Administration, Form EIA-861, data year 2024 — the annual filing every US electric utility makes. Rates are residential revenue divided by residential sales on bundled service; solar counts are from the net-metering schedule of the same filing. Utility number 19007. Download the source archive and check any figure here against it.

Form 861 is annual and publishes roughly eleven months after the year it covers, so 2024 is the most recent utility-level data that exists anywhere. It is not today's tariff. For a current price, read your own bill; for a current rate structure, read the utility's tariff sheet. This page is for scale and comparison — what a typical household on this system pays, and how many of them have already installed solar.

Written and maintained by . Last reviewed 2026-08-19.