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YTECH SOLAR
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Commercial · DG Khan, Punjab

Ice Cold Storage — 143 kW

A cold store whose compressors pull hardest exactly when the sun is highest — the load profile that makes solar pay without storage.

Capacity
143 kW
Modules
200 × 715W
Inverter
1 × Huawei 115 kW

How it was done

The engineering decisions

  1. The load profile that suits solar best

    Cold storage is the clearest case I deal with. Compressor duty rises with ambient temperature, so the load peaks on hot, bright afternoons — which is precisely when the array is producing most. The generation curve and the consumption curve have close to the same shape, which means very little is exported and very little is wasted. No battery was specified, because on this profile a battery would have been sold rather than justified.

  2. Equipment

    200 modules at 715W into a single Huawei SUN2000-115KTL. A single inverter is a deliberate trade at this size: it is the more efficient configuration, and at 143 kW the consequence of a fault is a service call rather than a shutdown of a megawatt of plant.

  3. A recurring client

    DG Khan Cold Storage has come back for further work. On a model where I am paid 4% once and take nothing on the hardware, repeat business is the only compounding asset there is — which is a large part of why the after-sales is included rather than sold.

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.

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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

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    A 156 kW commercial array in Rangpur — a mid-sized job that shows the same terms apply well outside the Lahore corridor.

    Read the case study : Rehman Corporation, Rangpur — 156 kW

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    Read the case study : Simta Foods, Vehari Industrial Estate — 1 MW

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