Power And Utility

MZI is an industry leader in utility management by powering and maintaining infrastructure throughout Chicago and the East Coast. Our approach—using specialized equipment, efficient crews, and causing minimal customer impact—delivers reliable service. Furthermore, our focus on energy efficiency and voltage optimization saves money for clients and enhances safety for workers.

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Our Services

As one of Chicago’s leaders in power transmission, delivery, and substation systems, we exceed client expectations at every turn. Our reputation and relationships with utility companies, specialized equipment and efficient union crews have provided our clients with savings for consumers and businesses.

Substation

Below-grade Construction
Major equipment Installations & Yard Expansions
Control Building Installations
Corrective & Preventative Maintenance
Inspections, Oversight & Coordination
AMI/SCADA Revenue Metering
Statice Synchronous Compensators (STATCOM)

Highrise Vault Services

Turn-key substation construction through 500 kV
High voltage cable installation, splicing and termination
Installation and commissioning of transformers and switchgear
SCADA installation
Substation testing, commissioning and maintenance
Project and construction management
Preventative maintenance
Infrared scanning
Arc flash studies
Security Fencing
Substation drilling
High Rise Networks

Drilling Services

Design Build
Substations
Transmission Lines
Bridges
Buildings
Marine Operations
Lift Stations

Eima

In partnership with ComEd, MZI became a driving force behind smart meter installation and manhole cover refurbishment throughout Chicago and the East Coast. Assessed and refurbished over 6,200 manholes in Illinois as a part of the grid modernization program (Energy Infrastructure Management Act) improving the safety and reliability of the electric grid, shortening power outages for families and businesses, and ensuring the safety of future workers.

Solutions in Action

Recently Completed Projects

City of Chicago Maintenance

Mechanical maintenance on the city of Chicago buildings.

UIC Boiler Installation

Installed a new boiler to regulate temperature control.

EIMA

Assessed and refurbished over 6, 200 manholes in Illinois as a part of the grid modernization program (Energy Infrastructure Management Act) improving the safety and reliability of the electric grid, shortening power outages for families and businesses, and ensuring the safety of future workers.

Kice Substation

Changed 333-MVA regulators from a space-constrained support trellis, replaced the station auxiliary power transformers, and the 69-kV primary Transformer fuses. MZI Group reconfigured the existing electric wildlife mitigation barrier fence to accommodate the new equipment.

Waukegan Substation

Constructed a new 345 GIS (SF6 Gas Insulated Switchgear) and above-grade electrical construction for the new 138-kV switchyard adjacent to the GIS substation which greatly increased the reliability of electricity delivery