SOLAR EPC
ENGINEERING-FIRST SOLAR
GEC is a full-service solar EPC contractor with 200+ completed installations and 40 years of engineering heritage. Unlike solar companies that outsource design, our licensed P.E.s engineer every system in-house. One team. One contract. One point of accountability.
As an ICC Approved Vendor for the Illinois Shines / Adjustable Block Program, we help clients capture every available incentive.
SOLAR EPC
TYPES OF SYSTEMS
ROOFTOP SOLAR
Commercial and industrial rooftop installations. We engineer systems that maximize production without compromising roof integrity.
Ballasted and mechanically attached racking
Roof membrane compatibility analysis
Structural Load Calculations
Inverter Replacement Optimization
GROUND-MOUNT SOLAR
Fixed-tilt and single-axis tracking systems for facilities with available land. Ideal for maximizing capacity beyond rooftop constraints.
Fixed-tilt and single-axis tracking
Geotechnical Analysis
Storm Water Management
Utility Interconnection Coordination
CARPORT SOLAR
Solar carport structures that generate energy while providing covered parking. Good for the cars, good for the environment.
Structural engineering included
EV charging integration
LED lighting integration
Custom canopy designs
In-house licensed engineering — no subcontracted design
NABCEP-certified installation professionals
Illinois Shines / ABP ICC Approved Vendor
40+ years of commercial construction experience
Full turnkey — design, permits, install, commissioning
Licensed in 10 states: IL, IN, MI, CA, NY, NJ, MA, MD, TX, AZ
200+ completed solar installations
39 million kWh generated — 16,000+ tons CO₂ avoided
HOW WE WORK
END-TO-END EPC
Engineering, procurement, construction — under one roof.
Site Analysis & Load Profiling
We analyze consumption, peak demand, infrastructure. Roof/ground conditions. Structural capacity. Utility constraints. This data drives sizing and projections.
Engineering & Design
Licensed P.E.s design in-house. Structural analysis, electrical integration, code compliance. 40 years MEP. Integrates with existing infrastructure.
Permitting & Incentives
Interconnection apps. Building permits. AHJ approvals. We handle it. Plus incentives — IL Shines, ITC, MACRS, utility rebates.
Procurement
Tier 1 equipment. Selected for your site, not what's cheapest. Manufacturer relationships. Supply chain that stays on schedule.
Construction & Commissioning
In-house crews. No subs on critical work. NABCEP-certified. Rigorous testing before handoff.
Monitoring & Maintenance
Real-time monitoring. If output drops, we see it. Ongoing maintenance for the life of the system.