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Solar installation in Karachi is one of the most effective ways to cut electricity bills, but the actual savings depend heavily on a few details most quotes don't emphasize. Here's what to check before you commit.
1. Roof direction and shading
Panels facing south generally get the most consistent sunlight through the day. If your roof has shade from a neighboring building, water tank, or tree for a significant part of the day, that section will produce far less power — sometimes worth reconsidering placement or panel count in that area.
2. Dust accumulation and cleaning schedule
Karachi's dust and humidity settle on panels faster than in drier climates. A layer of dust can reduce output by 15–25% if left too long. Panels need cleaning roughly every 2–3 weeks in dry months, and after any dust storm — this should be factored into your maintenance plan, not treated as optional.
3. Inverter sizing matches your actual load
An inverter that's undersized for your panels wastes potential output; one that's oversized for your actual usage costs more upfront without added benefit. The right size depends on your real electricity usage pattern — not just the number of panels installed. Ask for this calculation specifically, rather than a generic package.
4. Battery vs. net metering — know which you're paying for
Net metering (selling excess power back to K-Electric) works differently from a battery storage setup, and the upfront and long-term costs are very different. Some installers bundle in a battery you may not need if your priority is simply lowering your monthly bill through net metering.
5. Net metering approval timeline
Getting official net metering approval through K-Electric takes paperwork and time — some installations run on the grid for weeks before approval comes through. Ask upfront how the installer handles this process and what the realistic timeline looks like, so there are no surprises.
Questions worth asking any solar installer
- What's the expected output loss from shading on my specific roof?
- How is the inverter size calculated for my usage?
- Is net metering approval included in the service, or handled separately?
- What's the recommended cleaning frequency for this location?
- What warranty applies to the panels versus the inverter?
A good installer should be able to answer all of these clearly, with numbers specific to your roof — not just general figures from a brochure.
Kaamzen's approach
We assess roof orientation, shading, and your actual usage pattern before recommending a system size, and walk you through the net metering process from application to approval.