Commercial · Rangpur, Punjab
Rehman Corporation — 156 kW
A 156 kW commercial array in Rangpur — a mid-sized job that shows the same terms apply well outside the Lahore corridor.
- Capacity
- 156 kW
- Segment
- Agricultural
- Location
- Rangpur, Punjab
- DC cable
- Double-XLPO KUKA
Classified commercial for sizing and tariff; the site is a working farm
Double-insulated and UV-stable, specified for an exposed rural run
How it was done
The engineering decisions
Work outside the Lahore corridor
Rangpur is not a short drive from Lahore, and taking industrial and commercial work across Punjab is a deliberate choice. Domestic work I keep close to Lahore because after-sales means being personally available; a commercial system of this size justifies the travel for the site assessment, the commissioning, and the visits afterwards.
Specifying for the conditions, not the catalogue
This is an agricultural site, and agricultural sites are hard on equipment: dust, heat, vibration, and nobody on hand to notice a fault for a week. The specification reflects that rather than a standard commercial bill of materials. Double-XLPO KUKA DC cable throughout — double-insulated and UV-stable, which matters far more on an exposed rural run than on a covered industrial roof. 710W JA modules on a single Huawei 150 kW inverter carrying the whole array. The install itself was done under genuinely difficult working conditions, and the crew got it done without cutting the parts of the job nobody would have seen.
No storage, and why I said so
No battery was specified. Under net billing, storage on a site whose consumption already tracks daylight rarely earns its cost, and on a farm the load is squarely in the generating window. I told the client that rather than selling them a battery, which on a 156 kW job is a meaningful amount of revenue to decline. Declining it is the model working as intended: I take 4% of the project cost, so inflating the project cost with hardware the site does not need would earn me a few thousand rupees and cost the client a few hundred thousand.
Terms
Equipment at wholesale, original invoices to the client, no margin, and 4% invoiced on commissioning.
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
- Aluminium rail structure
- Page updated
- 4 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
Ice Cold Storage · DG Khan
143 kW- PANELS
- 201 × JA 715W N-Type Bifacial
- INVERTERS
- 1 × Huawei SUN2000-115KTL 115 kW
- COMMISSIONED
- —
- MY FEE
- 4%, on commissioning
A cold store whose compressors pull hardest exactly when the sun is highest — the load profile that makes solar pay without storage.
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