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Otter Tail Corp

For the period ended Dec 31, 2024. Filed Feb 19, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 19, 2025

OTTR$79.86+1.8%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 2. Properties

ITEM 2.PROPERTIES

The following provides a summary of our properties which are material to our operations, by segment, as of December 31, 2024.

ELECTRIC SEGMENT

The following reflects our wholly or jointly owned material electric generation facilities as of December 31, 2024:

DescriptionLocationYear Placed in ServiceFuel TypeCapacity - kW (Nameplate Rating)
Big Stone Plant(1)Big Stone City, SD1975Subbituminous Coal223,146
Coyote Station(2)Beulah, ND1981Lignite Coal144,900
Jamestown Combustion TurbinesJamestown, ND1975Fuel Oil48,108
Lake Preston Combustion TurbineLake Preston, SD1978Fuel Oil24,100
Solway Combustion TurbineSolway, MN2003Natural Gas/Fuel Oil44,500
Astoria StationAstoria, SD2021Natural Gas245,000
Langdon Wind Energy CenterCavalier County, ND2007Wind40,500
Ashtabula Wind Energy CenterBarnes County, ND2008Wind48,000
Luverne Wind Energy CenterGriggs and Steele Counties, ND2009Wind49,500
Merricourt Wind Energy CenterMcIntosh and Dickey Counties, ND2020Wind150,000
Ashtabula III Wind Energy Center(3)Barnes County, ND2023Wind62,400
Hoot Lake SolarOtter Tail County, MN2023Solar49,900
(1) OTP holds a 53.9% joint ownership interest in this jointly owned facility. The nameplate capacity indicated reflects OTP's ownership percentage.
(2) OTP holds a 35.0% joint ownership interest in this jointly owned facility. The nameplate capacity indicated reflects OTP's ownership percentage.
(3) Originally placed in service in 2010 and owned by an unrelated third party. OTP acquired this facility in 2023.

In addition to our generation facilities, we wholly or jointly own transmission and distribution lines as of December 31, 2024 as follows:

Miles
Transmission
345 kV(1)890
230 kV(2)496
115 kV974
Less than 115 kV3,998
Distribution
Less than 115 kV7,870
(1) As of December 31, 2024, OTP held a 14.2% ownership interest of 242 miles, a 4.8% ownership interest of 250 miles, and a 50.0% ownership interest of 234 miles of the 345 kV transmission lines, with the remaining miles being wholly owned.
(2) As of December 31, 2024, OTP held a 14.8% ownership interest of 70 miles of the 230 kV transmission lines, with the remaining miles being wholly owned.

MANUFACTURING AND PLASTICS SEGMENTS

The following reflects the properties of our Manufacturing and Plastic segments as of December 31, 2024 which are significant to our operations:

Segment/LocationOwned/LeasedFacility Type/UseApproximate Square Feet
Manufacturing Segment
Otsego, MNLeasedManufacturing/Warehouse86,000
Clearwater, MNOwnedOffice/Manufacturing/Warehouse204,000
Washington, ILLeasedOffice/Manufacturing/Warehouse218,000
Sauk Rapids, MNLeasedWarehouse278,000
Dawsonville, GAOwnedOffice/Manufacturing/Warehouse334,000
Detroit Lakes, MNOwnedOffice/Manufacturing/Warehouse354,000
Lakeville, MNLeasedOffice/Manufacturing/Warehouse413,000
Plastics Segment
Fargo, NDOwnedOffice/Manufacturing/Warehouse122,000
Phoenix, AZOwnedOffice/Manufacturing/Warehouse149,000

We believe the facilities described above are adequate for our present business.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.