AC & DC Earthing Services in Karachi

Why AC and DC Earthing Must Be Separate

Your solar system has two distinct electrical sides — the DC side (panels, battery, inverter DC input) and the AC side (your home wiring, mains, connected appliances). These two sides must have separate, dedicated earthing — not a single shared earth point.

This isn’t just our preference. It’s a K-Electric requirement for any system applying for net metering, and it’s good practice for every solar installation regardless of whether you’re net metering or not. Mixing AC and DC earthing on a shared path creates interference and safety risks that a properly separated system avoids entirely.

The 5 Ohm Standard — Why Most Earthing Fails Over Time

Here’s something most companies won’t tell you: earthing resistance has to stay below 5 Ohms to actually function as designed and to pass K-Electric inspection if you’re applying for net metering. The problem is, earthing installed with cheap, low-quality material often reads fine on day one — and then the resistance value climbs over the following weeks and months as the material degrades in the ground.

This happens because many installers use local, silver-coated, or mixed-metal earthing rods to save cost upfront. These materials corrode faster underground, and as they degrade, the earthing resistance rises above the safe threshold — sometimes without anyone noticing until there’s a problem, or until a K-Electric survey fails because of it.

At SunnyPath Energy we use full copper earthing material on every installation. It costs more than the local alternatives, but it holds its resistance value over years, not just on the day it’s installed.

Why This Matters Beyond Net Metering Compliance

Proper earthing isn’t just paperwork for K-Electric. It’s a real safety system that protects you and your equipment:

Surge protection — if there’s a voltage spike from the grid or a lightning strike nearby, proper earthing gives that excess current a safe path to dissipate instead of damaging your inverter or panels.

Personal safety — this is the part people don’t think about until it’s a problem. If you’re washing your solar panels on the roof and the earthing is poor quality or improperly installed, a fault anywhere in the system can pass current through water and put you at real risk. Good earthing isn’t optional — it’s what keeps a routine cleaning job from becoming dangerous.

Our AC & DC Earthing Process

• Site assessment — we evaluate your soil conditions, since ground conductivity directly affects what earthing method and depth will actually achieve a low resistance value
• Separate AC and DC earth installation — using full copper material, correctly separated as required
• Resistance testing — we test and confirm the value is comfortably below the 5 Ohm threshold before considering the job complete
• Documentation — if you’re planning to apply for net metering, our earthing work is done to the standard K-Electric’s survey team will test for

Common Earthing Problems We Fix

We regularly get called in to inspect and rectify earthing done by other installers. The most common issues we find:

• Single shared earth for both AC and DC instead of separate dedicated earths
• Resistance values above 5 Ohms due to low quality material
• Surge arrestor (SPD) sharing the same earth path as other DC components instead of having its own dedicated fitting
• Earthing that was never actually tested after installation

If your net metering survey failed due to earthing, or if you simply want your existing system’s earthing inspected and verified, we can assess it and correct what’s needed.

Get Your Earthing Done Right

Whether you’re installing a new system or your net metering application got stuck on a failed earthing test, SunnyPath Energy handles AC and DC earthing the way it should be done — separated, tested, and built with materials that hold up over time.

📞 Call us: 0306-2948694 | 0344-7654540
📧 Email: hello@sunnypathenergy.com
📍 Suite 0802, 8th Floor, Vital Foakh Tower, Main Shahrah-e-Faisal, Karachi