Case Studies

Case Studies

Solar Projects Explained Through Engineering Thinking

Explore how solar projects should be studied, designed, evaluated, documented, and supported before becoming a long-term energy asset.

solar project rooftop engineering

How We Judge a Project

A Good Solar Project Is Not Judged by Panel Count or Price

It should be judged by the engineering behind it. That is the lens every FSP case study is written through.

Load Analysis

What the system actually needs to power, and for how long.

Roof Condition

Usable area, structure, and shading — documented, not assumed.

Design Quality

Sizing, layout, and component matching done by engineers.

Safety

Protection, earthing, and lightning safety in every design.

Generation Target

Calculated output with assumptions you can verify.

Cable Route

Voltage drop and path planned for minimal loss.

Installation Quality

Execution that matches the approved design.

Handover & Support

Documentation and after-sales that continue for years.

Featured Case Studies

Real FSP Project Case Studies

A selection of real FSP projects — each shown with its actual site, capacity, engineering scope, and current stage. Generation and saving figures are engineering estimates until a system is commissioned and measured.

industrial rooftop solar case study Ashulia Dhaka
Industrial300 kWOn-grid

Industrial Rooftop Solar — Ashulia, Dhaka

LocationGohailbari, Shimulia Bazar Road, Ashulia, Savar, Dhaka
System typeOn-grid
Capacity300 kW
RoofTin-shed
ProblemLarge daytime demand and rising tariff on a big, unused factory roof.
EngineeringTin-shed roof condition, wind load, cable routing, inverter placement, earthing, and long-term maintenance access reviewed before final planning.
ScopeSupply • Installation • Protection • Net Metering Support
Est. generation≈ 4.0–4.4 lakh kWh/year (estimate)
StatusEngineering review completed
Industrial solar approach →
commercial rooftop solar case study Uttara Dhaka
Commercial120 kWOn-grid / Hybrid

Commercial Rooftop Solar — Uttara, Dhaka

LocationUttara Sector 18, Diabari, Dhaka
System typeOn-grid / Hybrid
Capacity120 kW
RoofRCC
ProblemHigh daytime tariff and generator fuel cost.
EngineeringLayout planned to keep rooftop access, reduce cable losses, and support stable daytime energy savings for commercial operation.
ScopeLoad Analysis • Design • Installation • Protection • Net Metering
Est. generation≈ 1.6–1.8 lakh kWh/year (estimate)
StatusProject planning and layout preparation completed
Commercial solar approach →
residential hybrid solar case study Chattogram
Residential20 kWHybrid

Residential Hybrid Solar — Chattogram

LocationChattogram Residential Zone
System typeHybrid (with battery backup)
Capacity20 kW
RoofRCC / Residential rooftop
ProblemDaily load-shedding disrupting the household.
EngineeringBackup loads, battery autonomy, inverter capacity, future load growth, and safe rooftop panel placement considered for reliable daily operation.
ScopeLoad Study • Hybrid Design • Battery Backup • Installation • Commissioning
Est. generation≈ 26,000–29,000 kWh/year (estimate)
StatusLoad study and backup planning completed
Residential solar approach →
solar irrigation pump case study Manikganj
Agriculture7.5 HPSolar Pump

Solar Irrigation Pump — Manikganj

LocationRural Agriculture Area, Manikganj, Bangladesh
System typeSolar Pump (7.5 HP)
Water sourceBorewell / Surface water source
ProblemExpensive, unreliable diesel pumping for irrigation.
EngineeringWater depth, head, daily irrigation demand, sunlight availability, and pump operating hours reviewed before final system selection.
ScopePump Sizing • Solar Array Design • Structure • Installation • Testing
Est. array≈ 5.5 kW solar array (estimate)
OutcomeDiesel-free daytime irrigation (estimated, site-specific)
StatusPump sizing and site assessment completed
Solar pump approach →
These projects are also listed on our Projects page. Real photo documentation and measured results are added as each system is installed and commissioned — we never present invented projects as real.

Case Study Template

How Every FSP Case Study Is Structured

Below is an illustrative example showing how a complete FSP case study reads. The figures are example values — every field is filled with your real, verified project data.

engineered solar project example
FieldExample value
Client / Project TypeCommercial Rooftop (example)
LocationChandpur (example)
System Size≈ 30 kW (example)
Existing ProblemHigh daytime tariff + generator fuel cost
Load / Bill Condition≈ ৳45,000/mo · daytime load ≈ 25 kW (example)
Site ConditionRCC roof · ≈ 3,000 sq ft usable · minimal shading
Proposed Solar SolutionOn-grid · ≈ 30 kW · net metering
Engineering ConsiderationsString sizing · cable route · protection · structure
Expected Generation≈ 43,000 kWh/year (estimate)
Expected Saving≈ ৳3.6 lakh/year at current tariff (estimate)
Safety & Protection PlanSPD · earthing · lightning protection · breakers
Handover / Support PlanDocumentation · training · AMC scope
Final Outcome / BenefitReliability + saving + 20-year asset value

Engineering Review Framework

What We Check Before Any Final Recommendation

Every project passes through this review before we propose a system size or price.

  • Load pattern — what runs, when, and for how long
  • Roof space — usable shadow-free area
  • Roof strength — structural load-bearing capacity
  • Shadow analysis — morning-to-evening shading
  • Inverter location — ventilated, accessible, safe
  • Cable route — voltage drop and path
  • DB / MDB condition — interconnection readiness
  • Earthing — resistance and electrode condition
  • Lightning protection — by site exposure
  • Net metering possibility — utility and policy check
  • Maintenance access — safe long-term servicing
  • Future expansion — headroom for load growth

Project Visual References

Project Gallery

Site condition, installation stage, engineering work, and final system views — documented across our projects.

Components & Standards

Brands We Design With

We design with internationally recognized component brands, selected per project for performance, warranty, and availability.

SolaX
LONGi
component brand
component brand
component brand

Results & Learning

What a Well-Studied Project Delivers

Energy Saving Potential

A correctly sized system maximizes self-consumption — actual savings depend on tariff and usage (estimated per project).

Better Load Understanding

The load study gives the client a clear picture of their real energy use.

Safer System Design

Protection and earthing engineered in — risk reduced, not transferred to the client.

Clear Project Documentation

Datasheets, test reports, and layout handed over — a complete system record.

Better Maintenance Planning

Designed for safe access and supported by structured O&M / AMC.

Long-Term Support

Our responsibility continues for the working life of the system.

Keep Exploring

Related Pages

FAQ

Case Study Questions

What information is needed to create a solar case study?
Your electricity bills, a load list, and basic site details (roof type, area, location). With those, we can build a project assessment before any installation.
Can FSP prepare a project assessment before final quotation?
Yes. We prepare an engineering assessment — sizing, generation estimate, and scope — so you understand the project before committing.
Why does roof condition matter in solar design?
Usable area, structure, and shading determine how much capacity can be safely and productively installed. A bill alone cannot tell us this.
Does FSP show real project data?
Yes — the Featured Case Studies above are real FSP projects shown with their actual site, capacity, and scope. Detailed generation and saving figures are engineering estimates until the system is commissioned and measured. We never present invented projects as real.
Can project photos and client names be added later?
Yes — this page is built so real photos, client names, system sizes, and results can be inserted after client approval.
How are expected savings calculated?
From your system size, location, orientation, tariff, and self-consumption — presented as a realistic estimate with assumptions you can verify. See the ROI guide →
Why is handover documentation important?
It is your permanent system record — datasheets, test reports, warranties, and layout — needed for maintenance, warranty claims, and future expansion. More →

Ready to Study Your Solar Project Properly?

Before recommending system size or price, FSP reviews your load, roof condition, safety requirements, cable route, generation target, and future expansion plan.