CMS Energy Corporation

Overview

Primary operations: electric utility, gas utility, and NorthStar Clean Energy (domestic independent power production and energy marketing).
Geography: primarily serves Michigan customers with extensive generation, transmission, and distribution assets in the state.
Business segments:
- Consumers Electric Utility — electric generation, transmission, and distribution
- Consumers Gas Utility — natural gas transmission, storage, distribution, and sales
- NorthStar Clean Energy — non-utility owned/operating independent power production and energy marketing

Consumers customer base in Michigan (as of 2025):
- Electric: 1.9 million customers in Michigan’s Lower Peninsula
- Gas: 1.8 million customers in Michigan’s Lower Peninsula
- Overall reach: serves 6.8 million of Michigan’s 10 million residents
Employees (2025):
- CMS Energy (including Consumers): 8,350 full-time and part-time employees
- Consumers: 8,095 full-time and part-time employees
- Union representation: about 44% of CMS Energy’s employees and about 45% of Consumers’ employees

Consolidated operating revenue:
- CMS Energy consolidated operating revenue: $8.5 billion (2025); $7.5 billion (2024 and 2023)
- Consumers consolidated operating revenue: $8.1 billion (2025); $7.2 billion (2024 and 2023)
NorthStar Clean Energy:
- Operating revenue: $408 million (2025); $316 million (2024); $297 million (2023)
- NorthStar Light energy assets owned: 2,085 MW total ownership capacity; 7,485 GWh net generation (2025)
NorthStar Energy Resource Management (ERM) revenue: $331 million (2025); $247 million (2024); $233 million (2023)
Consumers Electric Utility:
- Electric utility operating revenue: $5.6 billion (2025); $5.1 billion (2024); $4.7 billion (2023)
- Electric deliveries: 37 billion kWh (2025), including 3 billion kWh ROA deliveries, resulting in net bundled sales of 34 billion kWh
- 2025 electric supply mix includes coal, gas, hydro, wind, solar, and storage
Consumers Gas Utility:
- Gas utility operating revenue: $2.5 billion (2025); $2.1 billion (2024); $2.4 billion (2023)
- Natural gas deliveries through Consumers’ pipeline/distribution: 396 Bcf (2025), including GCC deliveries of 31 Bcf

Distribution and transmission: extensive distribution network in Michigan with high-voltage lines, distribution lines, substations, and interconnection to the MISO system and other transmission systems.
Electric generation and supply (2025):
- Owned generation capacity: 5,940 MW; owned generation energy: 24,236 GWh
- Purchased power and net interchange: 3,250 MW capacity; 11,667 GWh
- Total electric supply: 9,190 MW capacity; 35,903 GWh of energy
- Net bundled sales after transmission losses: 33,809 GWh
Generation asset mix includes coal, natural gas, hydro, wind, solar, and energy storage
Contracting and market activity: long-term power purchase agreements (PPAs) and self-generation investments; reports future capacity and energy purchase obligations under these contracts
NorthStar Clean Energy and ERM operate independent power production and energy marketing activities across multiple states beyond Michigan

Owns and operates core electric and gas utilities serving Michigan residents and businesses through Consumers Energy, covering generation, transmission, distribution, and retail service for electricity and natural gas.
Owns and operates non-utility energy assets via NorthStar Clean Energy, including independent power producers and related energy marketing.
Generates, purchases, and markets electricity for its customers and for wholesale and retail markets through PPAs and market participation.
Manages an asset base that includes thermal generation, hydro, wind, solar, and energy storage, with ongoing plans to expand renewable and storage capabilities consistent with state energy goals.
Provides energy supply planning and risk management through related segments and serves millions of residential, commercial, and industrial customers, primarily in Michigan’s Lower Peninsula.