Solar Inspections for Safe and Optimal Operation

Solar inspections play an important role in ensuring systems are installed correctly, operate safely, and continue to perform optimally over time. As solar projects continue to expand across the region, the focus is shifting from simply installing systems to making sure the new and existing systems are installed correctly and continue performing safely and reliably over time. Both the timing and objectives of solar inspections can be tailored to fit different project needs. Some inspections occur during installation to catch issues early, while others take place after a system has been operating for a period of time to confirm its still performing optimally. In both cases, inspections help protect the original investment and provide confidence that systems are set up for long-term success.

Our team at Energy Sciences provides solar inspection services both virtually and on-site across Michigan, Illinois, Indiana, and Ohio. Our inspections focus on visual reviews of system components, verification of electrical connections, and confirmation that installations meet applicable codes and standards. The goal is to identify issues that could affect safety or performance and address them before they become larger problems. To illustrate how inspections support your systems in practice, we worked with one of our solar inspectors, Shir Popalzai, to get a deeper understanding of the solar inspection work we support for the Illinois-Shines Program. He provided us with clear examples of how structured inspections can support quality and consistency for the customer and the installer.

Real World Example

Illinois-Shines Program Solar Inspections: Ensuring Quality, Safety, and Consumer Confidence

The Illinois (IL)-Shines Program inspections play a critical role in improving the quality and long-term performance of solar installations across Illinois. Through consistent field inspections of residential and commercial solar installations, documentation, and technical review, the program helps ensure that PV and battery systems are installed safely, perform as designed, and comply with the correct Standard Operating Procedures (SOP) and the National Electrical Code (NEC).

Customer Impact

These solar inspections directly benefit customers by:

• • Ensuring their system is safe, code-compliant, and properly interconnected.
  • Verifying correct system size, expected production, and equipment installation.
  • Providing assurance that the system will perform efficiently over its lifespan.
  • Preventing potential hazards such as improper grounding, mislabeled circuits, overloaded busbars, or incorrectly installed rapid-shutdown equipment.

This quality assurance builds trust in the solar market, helping customers feel confident in their investment.

What IL-Shines Inspection Work Looks Like

A typical inspection involves:

1. 1. Scheduling and homeowner communication
   2. On-site review of all installed equipment
   3. NEC-based electrical checks, including:
      • Grounding and bonding
      • Rapid shutdown & labeling
      • Busbar ratings and 120% rule
      • AC/DC conductor routing and protection
      • Breaker sizing and voltage checks
   4. Documentation and reporting in the IL-Shines portal
   5. Communication with installers to resolve discrepancies

This workflow ensures consistency, safety, and transparency for all stakeholders.

Overall Program Impact

The IL-Shines Inspection program has had a significant statewide impact by:

• • Raising installation standards
  • Reducing long-term system failures
  • Supporting consumer protection
  • Increasing installer accountability
  • Improving program integrity and public trust

As Illinois continues to expand its renewable-energy goals, the IL-Shines Inspection team plays a vital role in helping the industry grow responsibly and sustainably.

Experienced Team, Collaborating for Success

Through local boots on the ground experience, process continuous Improvements, and by conducting a large volume of inspections across the state for various projects our team has developed unique set of expertise in solar inspections:

• • Technical Expertise: Inspectors have a deep understanding of NEC 2020 requirements and evolving technologies such as Enphase IQ systems, SolarEdge inverters, meter collars, ESS configurations, and rapid-shutdown devices.
  • Standardized Processes: Through consistent training, templates, and checklists, the team delivers uniform inspection quality statewide.
  • Enhanced Collaboration: Inspectors, installers, and program administrators work closely together to resolve issues and improve installation practices.
  • Early Issue Detection: Repeated field observations help identify common installation mistakes, which are communicated back to installers for continuous improvement.

This program example highlights how solar inspections support safer installations, clearer expectations, and stronger outcomes for everyone involved. Whether inspections occur during installation, after installation, or periodically once a system is operating, they provide a reliable way to identify trends, improve installation practices, and support long-term system performance.