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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
Commercial
Location
Rangpur, Punjab

How it was done

The engineering decisions

  1. 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.

  2. Sizing and equipment

    A 156 kW on-grid array sized against the daytime consumption profile, with a single SOLIS 125 kW inverter carrying the load. No storage: under net billing, storage on a site whose consumption already tracks daylight rarely earns its cost, and I said so rather than selling batteries.

  3. 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.

Book a site assessment How I charge

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
    200 × Longi 715W N-Type TOPCon
    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.

    Read the case study : Ice Cold Storage, DG Khan — 143 kW

  • Simta Foods · Vehari Industrial

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    PANELS
    594 × JA 715W N-Type Bifacial
    INVERTERS
    2 × SOLIS S5-GC125K 125 kW
    COMMISSIONED
    —
    MONTHLY SAVING
    PKR 1,900,000
    PAYBACK
    < 8 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

All case studies