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Lowest upfront cost. Maximum bill reduction. Designed for self-consumption under NEPRA Prosumer Regulations 2026.

An on-grid solar system connects directly to the utility grid. It has three main components: solar panels, a grid-tied inverter and the existing grid connection. There are no batteries.

During daylight hours, the panels generate DC electricity. The inverter converts it to AC at the same frequency and voltage as your GEPCO supply. This power flows into your property first and covers your running loads. If generation exceeds what your property is consuming at that moment, the surplus flows back into the GEPCO grid. Under the NEPRA Prosumer Regulations 2026, GEPCO purchases that surplus at the national average energy purchase price of approximately PKR 11 per unit and credits it to your electricity account.

When the sun sets or generation drops below consumption, the inverter draws the shortfall from the grid automatically. There is no switch to flip. The system manages the transition between solar and grid supply without any input from you.

On February 9, 2026, NEPRA notified the Distributed Generation and Net Billing Regulations 2026, replacing the old net metering framework. This change affects every new solar connection in Pakistan. If you are considering an on-grid system, understanding this regulation is essential before you make a decision about system size.

Under the old net metering rules, one unit you exported to the grid cancelled one unit you imported. The math was simple and export was valuable because it offset grid electricity at the full consumer tariff.

Under net billing, the buyback rate for exported units is set at the national average energy purchase price, currently approximately PKR 11 per unit. But you pay the standard consumer tariff when importing from the grid, currently PKR 40 to 50 or more per unit depending on your consumption slab. The gap between what you receive for exports and what you pay for imports is now significant.

The most important consequence of net billing is that self-consumption is now far more valuable than export. Every unit your solar panels produce that you consume directly saves you the full import tariff rate. Every unit you export earns only approximately PKR 11.

Under the old net metering framework, oversizing a system to maximise export made financial sense. Under net billing, oversizing a system that exports more than it self-consumes delivers a poor return on the additional investment. The right system size under net billing is one that closely matches your actual daytime consumption rather than one designed to maximise export.

If you already have an approved GEPCO net metering connection from before February 9, 2026, your existing contract remains valid until it expires. You are not forced onto net billing until your contract renewal. New connections and renewals from February 9, 2026 are governed by the net billing framework.

Our 10.44kW on-grid installation in Madina Colony, DC Road, Gujranwala was commissioned in January 2025 and received GEPCO net metering approval before the February 2026 regulation change. That contract remains valid under the old net metering terms until expiry. New on-grid installations from February 2026 are designed under net billing rules with self-consumption as the primary objective. For details on modern layout registration parameters, read our complete step-by-step guide to GEPCO net billing.

Under the NEPRA Prosumer Regulations 2026, we design on-grid systems to maximise the percentage of solar generation consumed on-site rather than exported to the grid. This is the most effective way to improve the financial return on an on-grid installation under the current regulatory framework.

We advise customers to shift discretionary loads to daylight hours where possible. Running the washing machine, water pump, iron and other high-consumption appliances between 9am and 4pm means those units come from solar at zero marginal cost rather than from the grid at PKR 40 to 50 per unit. Over the life of a system, this habit significantly improves the effective return.

System size should match your daytime consumption, not your total monthly consumption. A property that consumes 600 units per month but runs most loads at night is a poor candidate for a large on-grid system under net billing. A property that consumes 600 units primarily during the day is an excellent candidate.

These are indicative ranges. Your actual system size is confirmed at the site survey based on your bill history, roof space, shading and daytime consumption pattern.

Your priority is maximum bill reduction at the lowest possible upfront cost. You have predictable daytime loads that can absorb most of the solar generation. Your area has minimal load shedding or you have an existing backup solution. You are a business, school or mosque with heavy daytime operations where most consumption happens during solar generation hours.

Your area has regular load shedding and you need backup power. An on-grid system shuts down when the grid goes down. If load shedding is a real operational problem for your household or business, a hybrid system or an ESS unit is the more practical investment. The marginal cost of adding battery backup at the time of installation is lower than retrofitting it later.

If budget is the primary constraint today, an on-grid system can be installed now and an ESS unit added later when budget allows. The Solis S5 inverter is not natively hybrid-compatible, so adding battery backup later means replacing the inverter with a Solis S6 hybrid unit in addition to the battery. This is worth factoring into the upfront decision.