Field questions, inspection comments, and revised sheets stay tied to the same engineering context.
Installers and electricians
Solar plan sets and engineering support for crews that need answers in the real job, not just on the first PDF.

Install-ready
Plan sets built to be used by crews and inspectors, not just uploaded for a submittal record.
Same day
When a real issue appears on site, the answer path is direct.
The engineer you talk to understands the installation reality, not just the drawing package.
What this means in practice
What installers actually need from an engineering partner.
Plans are built around actual field conditions instead of idealized template assumptions.
Single-line and three-line diagrams are drafted for electricians and installers who have to act on them under real job pressure.
When the roof, panel, or utility condition does not match the drawing set, you can get a code-based answer the same day.
Inspection comments and revised sheets stay on the same engineering thread instead of bouncing between strangers.
Installer proof
What installers say when the engineering support holds up in the field.
“Anthony and the GBI team have been an exceptional partner for our engineering and design needs. Their PV plans and EE/PE stamping are consistently accurate, and they stay proactive on the details that matter, from Tesla and SPAN communication checks to exact equipment specs on complex commercial jobs. The process is easy to manage through their streamlined project portal, clear monthly invoicing, and responsive communication. For installers that need a reliable and honest engineering partner, I highly recommend GBI.”
Includes recurring installer workflow support and complex commercial coordination, including equipment verification and communication checks.
“Working with Anthony Gianfrancesco and his team has been a game-changer for our operations. As a high-volume installer, we need an engineering partner who is technically sharp and current on utility requirements like Xcel Energy and United Power. Anthony consistently supports everything from standard residential plan sets to complex smart inverter and battery configurations, including Canadian Solar EP Cube 2.0 systems. He is proactive with AHJ revisions, responsive under install-schedule pressure, and dependable in getting projects to PTO efficiently. If you need full-service engineering support from PE stamps through utility application processing, I highly recommend Anthony and his team.”
High-volume installer support across utility completeness-review cycles, AHJ revisions, and complex inverter/battery configurations.
“We've worked with Anthony and his team on numerous complex projects ranging from solar to EV charging and off-grid installations. Their engineering is consistently precise, responsive, and technically sharp - exactly what's needed when accuracy and compliance matter. They are a reliable partner we trust on high-level electrical and renewable energy projects.”
Recurring support across complex solar, EV charging, and off-grid projects where precision, compliance, and fast engineering response are critical.
“I've worked with Anthony for years, and I wouldn't trust anyone else with my business. He's not just a service provider - he's a true partner who genuinely cares about my success. The work is always top-tier, and his dedication and character are unmatched.”
Long-term installer relationship built on trust, business continuity, and repeatable engineering quality across projects.
Field support
What tends to trigger the call.
Service equipment does not match the original assumptions.
Roof layout and setbacks force a revision to the plan set.
Inspector comments require a same-day documentation update.
Commissioning or PTO issues expose a production mismatch after install.
Next step