Industrial · Lahore, Punjab
Hashim Textile — 177 kW
The clearest EPC+ comparison on this site: 177 kW delivered at PKR 56 a watt, against the PKR 62–72 the same job costs bought the conventional way.
- Cost per watt
- PKR 56/W
- Conventional range
- PKR 62–72/W
- Client saving
- PKR 2.5–3M
- Consultancy fee
- PKR 382,579
Total project cost including the 4% consultancy fee, divided by capacity
Prevailing market pricing for the same scope bought through a contractor
The delivered cost against the conventional range, on this project
4% of PKR 9,564,480 equipment cost, invoiced on commissioning
How it was done
The engineering decisions
Two ways to buy the same solar plant
Almost every industrial solar job in Pakistan is bought one of two ways. Either you hire a consultant to design it and a contractor to build it, and the two spend the project blaming each other — or you hand the whole thing to one contractor, who prices the equipment at whatever margin the market will bear and has no reason to tell you what it actually cost. The first route is expensive and slow. The second is faster and you cannot see inside it. What I do is the third thing: the consultancy and the execution are the same accountable party, but the procurement is transparent. Globally that structure is called EPC+. This project is the cleanest example of it I have delivered, because here the alternative price is on record.
Designing to the constraint, not to the roof
The mill needed meaningful capacity from a roof that did not obviously have room for it. The conventional answer is to fit fewer, cheaper panels and tell the client that is what the space allows. I specified 615W Longi N-Type bifacial modules instead — a higher wattage per square metre, which is what buys capacity when area rather than budget is the binding constraint. That got the system to 177 kW on the available roof. It also lowered the total project cost by over PKR 1.5M against the alternative design, because a smaller number of higher-output modules needs less structure, less cable and less labour than a larger number of cheap ones.
What it cost, line by line
Equipment came to PKR 9,564,480, invoiced to the client at the original supplier prices with nothing added. My consultancy fee was 4% of that — PKR 382,579 — making the total project amount PKR 9,947,059. Divided by 177 kW of installed capacity, that is PKR 56 a watt, fee included. The same scope bought through a contractor in this market runs PKR 62–72 a watt. On this project that is a difference of roughly PKR 2.5 to 3 million, and it exists for one structural reason: there is no margin on the hardware, because I do not sell the hardware.
What was actually installed
A single Huawei 115 kW inverter, 615W Longi N-Type bifacial modules, a customised aluminium P1 rail structure, and 6mm double-XLPO DC cable throughout. The structure was fabricated to the roof rather than ordered as a standard kit, which is the line item a cheap quote trims and the one that decides whether an array survives twenty monsoon seasons. The design was modelled in PVsyst before anything was bought, including shading, so the layout was checked rather than assumed — and the model is scalable, so the mill can extend the array later without redesigning what is already on the roof.
What happens after commissioning
Lifetime after-sales, included rather than sold as a contract, and ongoing generation monitoring. That is not generosity. On a model where I take 4% once and nothing on the equipment, a client who comes back is the only thing that compounds — so staying reachable is the business, not a favour. The mill has a design that can grow, invoices it can audit, and the engineer who specified the system on the end of a phone.
Specification
Why this equipment, on this site
Every line in the bill of materials was a decision with a reason. These are the ones worth explaining.
- Modules
615W Longi N-Type bifacial
Higher wattage per square metre — capacity bought where roof area, not budget, was the constraint.
- Inverter
1 × Huawei 115 kW
Single unit at this capacity: the more efficient configuration, and a fault here is a service call rather than a plant shutdown.
- Structure
Customised aluminium P1 rail
Fabricated to this roof rather than a standard kit. The line item a cheap quote trims first.
- DC cable
6mm double XLPO
Double-insulated and UV-stable, sized for string current with voltage drop calculated.
- Design tool
PVsyst
Shading and layout modelled before procurement, and built to remain scalable for a later extension.
What I was paid
The same terms as every project on this site
Equipment bought at wholesale and invoiced to the client in the supplier's own name. No margin taken on any of it. My fee is 4% of total project cost, invoiced once the system is commissioned and generating.
The client holds every original invoice. They can check what a panel or an inverter costs in the Lahore market, and I expect them to — the model only works if the paperwork survives that.
Project record
- Commissioned
- —
- System type
- On-grid
- Structure
- Customised aluminium P1 rail structure
- Page updated
- 11 Aug 2026
Published with the client's written consent. Figures attributed to the client are marked as theirs.
The reasoning
Why this system was designed the way it was
The decisions on this project follow rules that apply to most sites in Pakistan. I have written them up in full — the sizing arithmetic under net billing, what payback really looks like against measured data, and how to check a quotation before you sign it.
More delivered work
Other projects
Simta Foods · Vehari Industrial
1 MW- PANELS
- 594 × JA 715W N-Type Bifacial
- INVERTERS
- 2 × SOLIS S5-GC125K 125 kW
- COMMISSIONED
- —
- MONTHLY SAVING
- PKR 1,900,000
- PAYBACK
- 14 months
- MY FEE
- 4%, on commissioning
A megawatt on a food plant that runs its load through daylight — and 77 days of monitoring data, including the twelve days the inverters were off.
Read the case study : Simta Foods, Vehari Industrial Estate — 1 MW
Hassan Flour Mill · DG Khan
500 kW- PANELS
- 720 × Canadian 695W N-Type TOPCon
- INVERTERS
- 4 × Huawei SUN2000-115KTL 115 kW
- COMMISSIONED
- DEC 2024
- MY FEE
- 4%, on commissioning
Half a megawatt squeezed onto a constrained site by deliberately accepting a shading loss — and gaining 12,000 units a year by doing it.