Company: CNLHP
Filing Date: 2025-02-14
Form Type: 10-K
Source: 0000072741-25-000007
Chunk: 152

Company: CONNECTICUT LIGHT & POWER CO
Filing Date: 2025-02-14
Form: 10-K
Item: Item 2
Chunk 152
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Item 2.    Properties

Transmission and Distribution System 

As of December 31, 2024, Eversource and our electric operating subsidiaries owned the following:

ElectricDistributionElectricTransmissionEversourceNumber of substations owned455 76 Transformer capacity (in kVa)48,055,400 16,223,000 Overhead lines (in circuit miles)40,595 3,998 Underground lines (in circuit miles)19,001 459 Capacity range of overhead transmission lines (in kV)N/A69 to 345Capacity range of underground transmission lines (in kV)N/A69 to 345

 CL&PNSTAR ElectricPSNH DistributionTransmissionDistributionTransmissionDistributionTransmissionNumber of substations owned157 21 174 30 124 25 Transformer capacity (in kVa)21,984,000 3,184,000 21,477,400 8,688,000 4,594,000 4,351,000 Overhead lines (in circuit miles)16,744 1,674 11,506 1,272 12,345 1,052 Underground lines (in circuit miles)6,932 157 9,940 299 2,129 3 Capacity range of overhead transmission lines (in kV)N/A69 to 345N/A69 to 345N/A115 to 345Capacity range of underground transmission lines (in kV)N/A69 to 345N/A115 to 345N/A115 

EversourceCL&PNSTAR ElectricPSNHUnderground and overhead line transformers in service650,632 294,777 183,831 172,024 Aggregate capacity (in kVa)39,547,666 16,931,978 15,165,820 7,449,868 

Electric Generating Plants

As of December 31, 2024, NSTAR Electric owned the following solar power facilities:  

Type of PlantNumberof SitesYearInstalledCapacity(kilowatts, dc)Solar Fixed Tilt, Photovoltaic222010 - 201970,000

CL&P and PSNH do not own any electric generating plants.

Natural Gas Distribution System

As of December 31, 2024, NSTAR Gas owned 21 active gate stations, 165 district regulator stations, and approximately 3,337 miles of natural gas main pipeline.  Hopkinton,