Your Community. Our Expertise. One Reliable Grid.

Powering Florida’s Future Together

At Commonwealth, we understand the unique mission of Florida’s municipal utilities: delivering safe, reliable, and affordable power while maintaining local control and public accountability. As a trusted partner to the Florida Municipal Power Association (FMPA) and its member utilities, we bring decades of experience in Power Delivery Engineering and System Studies to help you build stronger, smarter, and more resilient electric systems.

Power Delivery Solutions Built for Florida’s Municipal Utilities

Transmission Line Engineering

From concept to commissioning, our Transmission Line Engineering services are designed to meet the evolving needs of municipal utilities. Whether you're upgrading aging infrastructure, expanding capacity, or integrating renewable energy, Commonwealth delivers innovative, cost-effective solutions that align with your community’s goals.

Route selection and permitting
Structural analysis and design
Line optimization and upgrades
Resiliency and storm hardening
Construction support and QA/QC

We understand the regulatory landscape and environmental sensitivities unique to Florida. Our team works closely with your utility to ensure every project is delivered on time, on budget, and with minimal disruption to your community.

Substation Engineering

Substations are the heart of your power delivery system. Our Substation Engineering services ensure your infrastructure is safe, scalable, and future-ready.

Greenfield and brownfield substation design
Protection and control systems
SCADA and automation integration
Arc flash and grounding studies
Equipment specifications and procurement support

Whether you're modernizing legacy systems or building new facilities, CAI provides the technical depth and project management expertise to bring your vision to life.

Stronger Grids Start with Smarter Studies

System Studies & Consulting

Informed decisions start with accurate data and expert analysis. Our System Studies services help municipal utilities plan, operate, and optimize their electric systems with confidence.

Load flow and short circuit analysis
Arc flash hazard assessments
Protection coordination studies
Reliability and contingency analysis
DER and renewable integration studies

We tailor every study to your utility’s specific needs, ensuring compliance with NERC, FERC, and state-level requirements while supporting your long-term planning and operational goals.

Why Municipal Utilities Trust Commonwealth

A Partner Who Understands Public Power

At Commonwealth, we don’t just work for utilities—we work with them. We know that municipal utilities face unique challenges: limited budgets, public oversight, and the need to deliver exceptional service to every customer, every day. That’s why we approach every project with a deep respect for your mission and a commitment to transparency, collaboration, and results.

Local Control: We empower your team with the tools and insights to make informed decisions.
Public Accountability: Our solutions are designed to meet the highest standards of safety, reliability, and fiscal responsibility.
Cost-Effective Engineering: We deliver high-value solutions that maximize ROI and minimize lifecycle costs.

Serving Florida’s Energy Future

From the Panhandle to the Keys, Commonwealth is proud to support FMPA member utilities in building a more resilient, efficient, and sustainable energy future. Our Florida-based teams are ready to respond quickly, collaborate closely, and deliver results that make a difference in your community.

Let’s Build Something Powerful—Together

Whether you’re planning a new transmission line, upgrading a substation, or conducting a system-wide study, Commonwealth Associates is here to help. Let’s work together to power Florida’s future—one project, one partnership, one community at a time.

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