Solar arrays, engineered to the panel.
From 1 MWp rooftops to 150 MW utility-scale fields, Exa Engineering designs, validates, and oversees photovoltaic installations with the same structural rigor we bring to bridges — every rack, pile, and inverter pad calculated before ground is broken.
Three installation classes.
Every array is yield-modelled, wind-load tested, and grid-study cleared before the first pile is driven.
Utility & Industrial
1–150 MW grid-tied fields and industrial arrays on driven-pile or ballasted foundations, with full geotechnical survey and P50/P90 energy modelling.
Typ. delivery 20–36 weeksCommercial Rooftop
Rooftop systems engineered against the host structure's residual load capacity — never past it — with net-metering integration for homes and businesses.
Typ. delivery 8–14 weeksNet Metering & Storage
Battery storage and net-metering co-located with PV — pad design, thermal management, and interconnection studies delivered as one package.
Typ. delivery 12–20 weeksBashir Sons Steel — 5 MWp Industrial Array
A 5 MWp grid-tied solar installation across one of Pakistan's leading steel mills. Exa Engineering delivered geotechnical survey, racking structural design, and construction oversight — powering heavy industrial operations with clean energy and first energy ahead of schedule.
“Exa Engineering's pile and load analysis saved us an entire re-mobilization. First energy came early, and under budget.”
From irradiance data to first energy.
Each stage closes with a written sign-off before the next begins — the same discipline as our structural practice.
Resource & Site Study
Irradiance modelling, geotechnical borings, shading analysis, and interconnection screening.
Array & Racking Design
Layout, pile-embedment design, string sizing, and P50/P90 yield certification.
Construction Oversight
Pile-driving QA, torque verification, and IV-curve commissioning on every string.
Monitoring & O&M
24/7 performance monitoring against the yield model, with annual thermographic inspection.
Recent solar work.
Bashir Sons Steel Industry
Gourmet Bakeries, Multi-Branch
Hajvery Foods Processing
Bashir Sons Steel — Phase 2
What we engineer against.
| Parameter | Utility & Industrial | Rooftop | Standard |
|---|---|---|---|
| Wind Load Design | Up to 240 km/h, 3-sec gust | Site-specific uplift study | ASCE 7-22 |
| Module Certification | Bifacial 580–650 W | Mono PERC 420–460 W | IEC 61215 / 61730 |
| Foundation | Driven pile, 2.1–3.0 m embed | Ballast ≤ 24 kg/m² added | DNV-ST-0126 |
| Yield Modelling | P50 / P90 / P99 certified | P50 / P90 | IEC 61724-1 |
| Grid Interconnection | Transmission-level study | Net metering / distribution | IEEE 1547-2018 |
Solar questions.
Anything else — the monitoring desk answers around the clock.
Do you install, or only engineer?
We are the engineer of record and construction overseer. Installation is executed by vetted partners working to our drawings, with Exa Engineering field engineers verifying every stage — pile refusal, torque, and string commissioning included.
Can my roof or land take a solar array?
That's the first thing we check. A structural residual-capacity assessment precedes any layout — if the roof or ground can't carry the system through its design life, we say so before you spend anything on modules.
Do you handle net metering?
Yes. We handle net-metering applications and interconnection studies end-to-end for residential, commercial, and industrial systems, plus environmental compliance.
What happens after commissioning?
The array feeds our 24/7 monitoring desk. Underperformance against the yield model triggers a ticket within the hour, and every site receives an annual thermographic inspection.
Put your site under the sun.
A site assessment tells you exactly what your land or roof can produce — before you commit to anything.
Request Site Assessment+92 314 1444880