Founded by a former Sunrun design-outsourcing lead, with project experience tied to Sunrun, SunPower, and Sunnova.
About GBI
We are not here to make the project sound easier. We are here to make it clearer.
We built GBI to remove assumptions from electrical scope. Every project starts with the same discipline: define the constraint, verify the load, document the path, and stay available when the path changes.
Engineering is documented reasoning that can survive review, not optimism dressed up as speed.
We work best when the engineering team stays attached through corrections, revisions, and install handoff.
700+
Residential projects completed with permit and revision support.
50-state
Licensed engineering support available nationwide.
We respond to every email, usually the same day.
Anthony's academic background combines mathematics and physics with a master's in physics and research centered on how materials, devices, and measurements behave under real constraints, including how photovoltaics, oxide thin films, and superconducting materials work.
His publication record reflects multidisciplinary research at the intersection of materials science, applied physics, imaging, and computational analysis, with work spanning photovoltaics, oxide thin films, and superconducting materials across university and national-lab collaborations.
Founder accountability
Anthony Gianfrancesco
Anthony leads GBI with engineering rigor shaped by academic research, enterprise solar operations, and direct accountability through permit approval and installation handoff.
Dual BS degrees in mathematics and physics from Worcester Polytechnic Institute, followed by an MS in physics.
Research experience spanning WPI, Oak Ridge National Laboratory, the University of Tennessee, and NIST in Gaithersburg.
Published work in photovoltaics, atomic-scale imaging, thin films, and machine learning for materials science, with 329 citations.
Previously led outsourced design operations at Sunrun, managing quality, standards, and revision workflows at scale, including permit approval and installation handoff.
That combination of research discipline and field execution now shapes GBI's engineering standards, partner support, and long-term operating model.
Operating model
How GBI works once we are inside the job.
You should know exactly how we work: direct engineer contact, explicit constraints, and continuity through revisions.
01
Start with the customer constraint
Service limits, site conditions, owner intent, and approval risk come before stylistic preference.
02
Verify code and capacity
We calculate the path, identify bottlenecks, and document what has to be true for the job to work.
03
Issue documents people can trust
Permit-ready is not enough if installers, reviewers, or project managers still have to guess.
04
Stay available through revisions
When the project changes, the engineering relationship should not disappear at first issue.
Why partners stay
The relationship is built around clarity, not optimism.
Every engagement is built around clarity, not optimism. The commitments below show what that looks like in practice.
GBI is built to behave like a good in-house engineering team: reachable, consistent, and accountable through review cycles.
If the viable path is slower, more constrained, or more expensive than expected, we explain that directly instead of burying the tradeoff.
Recurring partners gain standards memory, AHJ familiarity, and fewer repeated explanation cycles over time.
Credentials + coverage
Proof that the operating model is already built for recurring work.
Jurisdiction coverage, response standard, and workflow familiarity are part of the value. We surface them clearly so they are easy to evaluate.
Nationwide support
Licensed engineering support available in all 50 states for recurring solar and electrical work.
Workflow familiarity
Experience tied to Sunrun, SunPower, and Sunnova informs how drawings, revisions, and standards are handled.
Response standard
Every email gets a response, usually the same day, so active jobs do not stall in a queue.
Work with GBI
Talk to the engineer who will be on the job with you.
If you want an engineering partner who will define the risk, explain the bottleneck, and stay attached through revisions, send us the active scope.