NorthWestern Corporation

208 N Montana Ave''''''' Helena, MT 59601

Company Summary Information

According to FERC EQR data, NorthWestern Corporation had a total of $17.4M in seller transasctions and $23.1M in buyer transasctions in 2025 Q1.

Company NameNorthWestern Corporation
Location208 N Montana Ave''''''' Helena, MT 59601
EIA DataNo EIA Information Available

FERC Seller Summary

Seller Dates AvailableJul 2013 to Jul 2025
Seller Total Transaction Charges$1.13B
Seller Total Transactions17,211,428
Seller 2025 Q1 Transaction Charges$17.38M
Seller 2025 Q1 Transactions732,738

FERC Buyer Summary

Buyer Dates AvailableJul 2013 to Jul 2025
Buyer Total Transaction Charges$996.16M
Buyer Total Transactions161,743
Buyer 2025 Q1 Transaction Charges$23.14M
Buyer 2025 Q1 Transactions2,829

Map of NorthWestern Corporation Locations

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Monthly FERC Transaction Charges by Type

Monthly aggregates and sums are derived from FERC Electronic Quarterly Reports (EQR)

Other Companies Listed Alphabetically

A list of companies close to NorthWestern Corporation when arranged alphabetically. They do not neccessarily have any association with NorthWestern Corporation.

Company NameCompany LocationEIA Annual
Generation
FERC 2025 Q1
Transactions
Northern Wasco County PudThe Dalles, OR117.4 GWh-
Northern Water Hydropower EnterpriseBerthoud, CO5.6 GWh-
Northfield Community SolarScottsdale, AZ8.7 GWh-
Northfield Holdco LLCPrinceton, NJ8.8 GWh-
Northfield Mountain LLCBurlington, MA-$44.39M
Northlake EnergyEast Chicago, IN713.9 GWh-
Northstar Clean EnergyJackson, MI281.2 GWh-
Northstar MACY's Maryland 2015, LLCScottsdale, AZ618.0 MWh-
Northwest Community HospitalArlington Heights, IL527.4 MWh-
Northwest Ohio Wind, LLCHaviland, OH301.6 GWh$4.59M
Northwestern Energy LLC - (MT)Butte, MT3.8 TWh$26.94M
Northwestern Lake Forest HospitalLake Forest, IL335.0 MWh-
Norton Powerhouse 2Worcester, MA31.3 GWh-
Norwest Energy 7, LLCAsheville, NC18.4 GWh-
Nostrand Solar, LLCSan Francisco, CA4.9 GWh-
Notus Clean Energy LLCE. Falmouth, MA4.6 GWh-
Nova Power, LLCHouston, TX-99.4 GWh$29.54M
Novo Biopower LLCSnowflake, AZ190.5 GWh$6.52M
NRG Arthur Kill Operations IncStaten Island, NY1.9 TWh-
NRG Business Marketing LLCPrinceton, NJ-$1.76B

Top 20 Companies Associated with NorthWestern Corporation

A list of the top 20 companies associated with NorthWestern Corporation in terms of total FERC EQR transactions charges. Total Transaction Charges are based on FERC EQR data obtained since Q3 2013.

Company Name2025 Q1 Transactions w/
NorthWestern Corporation
California Independent System Operator Corporation$9.73M
Powerex Corp.$9.30M
Macquarie Energy Trading LLC$8.18M
EDF Trading North America, LLC$6.38M
Bonneville Power Administration$1.70M
Apex Solar, LLC$1.35M
Mtsun LLC$1.04M
Portland General Electric Company$528.55k
The Energy Authority, Inc.$517.28k
Shell Energy North America (US), L.P.$401.28k
Tenaska Power Services Co.$348.85k
Transalta Energy Marketing Corp.$195.69k
Avista Corporation$191.93k
Avangrid Renewables, LLC$142.62k
Dynasty Power Inc.$85.59k
Eugene Water & Electric Board$80.64k
Guzman Energy, LLC$52.24k
Black Hills Power, Inc.$47.66k
Vitol Inc.$47.60k
Seattle City Light$44.23k

Company Contacts

A list of all company contacts obtained from FERC EQR data since 2013

ContactTitlePhoneEmailAddressFERC Filing Periods
FERC Regulatory Analyst2023Q1 - 2025Q2
FERC Regulatory Analyst2025Q1 - 2025Q2
FERC Regulatory Analyst2024Q4 - 2024Q4
FERC Regulatory Analyst2024Q3 - 2024Q3
FERC Regulatory Analyst2023Q3 - 2024Q2
FERC Compliance & Policy Analyst|Manager, FERC Compliance & Policy2022Q2 - 2023Q4
FERC Analyst2021Q1 - 2022Q1
FERC Analyst2020Q4 - 2020Q4
FERC Compliance Specialist2013Q3 - 2020Q3

The 20 Most Recent FERC EQR Transactions

Displaying Results 1 to 20 of 18,864,256   ( 0.942s )
Seller NameBuyer NameProductTransaction
Group Ref #
Begin DateEnd DateTrade DateQuantityPriceUnitsTransmission
Charge
Transaction
Charge
FERC Tariff RefContract
Service
Agreement
Contract
Filing
Type
Contract
Execution
Date
Contract
Commencement
Date
Contract
Termination
Date
TimezoneBalancing
Authority
Point of
Delivery Hub
ClassTermIncrementIncrement
Peaking
Filing
Type
Broker
Exchange
NorthWestern Energy Public Service CorporationSOUTHWEST POWER POOLENERGYDAAEN00000000000062526192025-06-30 23:002025-07-01 00:002025-06-291.4$36.7666$/MWH$0.00$51.47NWPS Market Based Rate Tariff, 2.0.0SA FIRST REVISED 3099 (SPP)New2024-01-012024-01-01CentralDaylight2SWPPWAUE.NWPS.TITANFirmShortTermHourlyOffPeakNew
NorthWestern Energy Public Service CorporationSOUTHWEST POWER POOLENERGYRTAEN00000000000062520622025-06-30 23:552025-07-01 00:002025-06-300.147$24.7704$/MWH$0.00$3.64NWPS Market Based Rate Tariff, 2.0.0SA FIRST REVISED 3099 (SPP)New2024-01-012024-01-01CentralDaylight2SWPPWAUE_NWPS_NTWKFirmShortTermFiveMinuteOffPeakNew
NorthWestern Energy Public Service CorporationSOUTHWEST POWER POOLENERGYRTAEN00000000000006252052025-06-30 23:552025-07-01 00:002025-06-300.024$23.7609$/MWH$0.00$0.57NWPS Market Based Rate Tariff, 2.0.0SA FIRST REVISED 3099 (SPP)New2024-01-012024-01-01CentralDaylight2SWPPWAUE.NWPS.NEAL4FirmShortTermFiveMinuteOffPeakNew
NorthWestern CorporationCALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATIONENERGYPRSCB8FE3869C1074FA38A672025-06-30 23:552025-07-01 00:002025-06-301.3758$29.40423$/MWH$0.00$40.46NWE Market Based Rate Tariff, 3.0.0EIM PR AgreementNew2020-08-132020-08-13PacificPrevailing2HUBNWMTFirmShortTermFiveMinuteOffPeakNew

NorthWestern Corporation Name and Address Permutations

Due to the nature of the data we have to make some assumptions when determining if two companies are the same. So to be transparent about how we're calculating some of the summary values, here are all the company names and addresses that were combined to create this record. While we try to make sure everything is as accurate as possible we can't guarantee complete accuracy for all records.

Company NameCompany Address
NorthWestern Corporation121 E Griffin DR Bozeman, MT 59718
NorthWestern Corporation121 E Griffin DR Bozeman, MT 59771
NorthWestern Corporation208 N Montana Ave Helena, MT 59601
NorthWestern Corporation5151 Harrison Ave. Butte, MT 59701