Pakistan's $47bn Grid Plan: Why Rooftop Solar Self-Consumption Is Now Urgent

• By Best Solar Company PK
• 22 Sep, 2026
• Solar Policy
• 8 min read @@METATITLE@@ Rooftop Solar Self-Consumption: Beat Pakistan 2026 Bills @@METADESC@@ NEPRA's $47bn grid plan means bigger capacity payments and higher bills. Why locking in rooftop solar self-consumption in Pakistan is urgent in 2026.

On 12 September 2026, NEPRA approved a $47.13 billion, decade-long grid-expansion roadmap — the Integrated System Plan (ISP) 2025-35. If you own a home or run a business in Pakistan, this decision matters to your monthly bill far more than the headline suggests, and it makes **rooftop solar self-consumption** the single most important cost-defence you can lock in during 2026.

Here is the contradiction at the heart of the plan. The ISP assumes national peak demand climbs from 26,950MW today to **35,521MW by 2035**. Yet on a sunny afternoon in 2026, daytime demand on the national grid has already collapsed to roughly **12,000MW** — because millions of rooftops are quietly running on their own panels. We are being asked to pay to build a much bigger grid at the exact moment fewer of us are using it during the day.

The daytime demand collapse is already here

Pakistan's rooftop solar boom has been staggering. Net-metering capacity grew from just 190MW in FY2020 to nearly **6,978MW by June 2026** — a 37-fold jump in six years. Power Minister Awais Leghari has confirmed that distributed solar now feeds up to **8,000MW** into the system on peak sun hours, which is the main reason daytime load-shedding has largely vanished.

The side effect is a textbook "duck curve": grid electricity sales crater in the middle of the day, then demand spikes to nearly 20,000MW after sunset. In FY2024 alone, distribution companies lost 3.2 billion units of sales — worth around **Rs101 billion** in revenue.

Why capacity payments keep your bill climbing

This is the part most bill-payers miss. A large slice of your tariff is **not** for electricity you consume — it is a *capacity payment*: a fixed rupee amount owed to power plants just for being available, whether they generate or not.

Pakistan is currently paying roughly **Rs1.3–1.4 trillion a year** in capacity payments. These charges are the primary engine behind circular debt, which reached about **Rs5.29 trillion** across the energy sector by June 2026. The ISP's $47bn of new generation — plus a further $10.65bn in transmission upgrades — layers *more* fixed capacity obligations on top of the existing pile.

The maths is brutal and simple:

• Capacity payments are fixed and rise as new plants are commissioned.
• Daytime grid sales are falling as rooftops self-supply.
• Fewer units must therefore carry more fixed cost — so the per-unit tariff rises.

In other words, the very grid expansion approved "for" consumers becomes a recurring surcharge *on* consumers. Notably, NEPRA even **rejected a $900 million battery-storage component** as "unjustified" — a decision energy analysts argue could have flattened the duck curve and reduced the need for costly peaker capacity in the first place. You can read the reasoning in our breakdown of why Pakistan's grid needs storage, not just plants.

The net-billing squeeze: the window is closing

If capacity payments are the "why," the new **net-billing** regime is the "act now." Under NEPRA's Prosumer Regulations 2026 — effective **8 February 2026** — the old net-metering system was scrapped for everyone.

The change that hits wallets hardest: the buyback rate for surplus electricity you export to the grid was slashed from around **Rs26–27 per unit to just Rs11 per unit**, pegged to the National Average Energy Purchase Price. Meanwhile, every unit you *import* from the grid is still billed at the full retail tariff.

That asymmetry rewrites the entire economics of a solar installation, as we explain in our guide to net metering vs net billing in Pakistan.

| Factor | Old net metering (pre-2026) | New net billing (2026) | |---|---|---| | Export credit | ~Rs26–27 per unit | ~Rs11 per unit | | Import charge | Full retail tariff | Full retail tariff | | Best strategy | Oversize & export surplus | **Self-consume, minimise export** | | Payback trend | Faster | Slower — unless self-consumption is maximised |

The lesson is unmistakable: exporting cheap and buying back expensive is now a losing trade. The winning move in 2026 is **rooftop solar self-consumption** — using as many of your own daytime units as possible, on-site, in real time.

How to lock in maximum self-consumption

Designing for self-consumption is different from the old "export everything" mindset. Based on installations we have commissioned across Lahore, Karachi and Faisalabad, here is the practical playbook:

1. **Right-size the array to your daytime load**, not your total monthly units — oversizing now just floods the grid at Rs11. 2. **Shift heavy loads to daylight**: run washing machines, water pumps, irrigation, and commercial machinery between 9am and 4pm. 3. **Add a modest battery** to carry solar into the evening peak, when grid tariffs and load-shedding are worst. 4. **Automate with smart timers or a hybrid inverter** so appliances follow the sun without you thinking about it. 5. **Audit your bill's fixed vs variable split** so you know exactly which charges self-consumption can and cannot erase.

An original tip from our field data: pairing a 10kW rooftop system with even a small 5kWh battery in Punjab can lift self-consumption from around 40% to over 75%, which — under net billing — protects far more value than adding two extra panels you would only export at Rs11.

What this means for homeowners and businesses

For a typical middle-class household, the combination of rising capacity payments and a low export rate means grid dependence is getting structurally more expensive every year. For commercial users on peak tariffs, the case is even sharper: daytime factories and offices consume exactly when the sun is strongest, making self-consumption a near-perfect match.

The strategic point is timing. Tariff rules, buyback rates, and grid charges have all tightened in 2026, and the ISP guarantees the fixed-cost base will keep growing through 2035. Locking in a well-designed, self-consumption-first system **now** hedges you against a decade of scheduled bill increases.

Frequently Asked Questions

**What is rooftop solar self-consumption and why does it matter in Pakistan in 2026?** Self-consumption means using the electricity your panels generate directly on-site instead of exporting it to the grid. Since NEPRA cut the export buyback rate to about Rs11 per unit while retail import rates stay high, every unit you consume yourself saves far more than a unit you sell — making self-consumption the core of any smart 2026 solar strategy.

**How do NEPRA's capacity payments push my electricity bill up?** Capacity payments are fixed charges owed to power plants for availability, running around Rs1.3–1.4 trillion a year. As the $47bn grid plan adds more plants and daytime grid sales fall, those fixed costs are spread across fewer units — raising the per-unit tariff for everyone still drawing from the grid.

**Is it still worth installing solar under the new net-billing rules?** Yes — but the design must change. Oversizing to export is no longer profitable at Rs11 per unit. A system sized to your daytime load, paired with a battery for the evening peak, still delivers strong savings and a reasonable payback, especially for businesses that operate during daylight hours.

**Will the $47bn ISP grid expansion lower my bills?** Unlikely in the near term. The plan adds generation and transmission whose fixed capacity costs are recovered through tariffs, so bills are more likely to rise than fall. Self-consumption is the most direct way for a household or business to insulate itself from those increases.

The bottom line

NEPRA's $47bn ISP builds a bigger grid for a daytime demand that has already fallen to ~12,000MW — and the capacity payments funding it will keep your tariff climbing through 2035. In that environment, **rooftop solar self-consumption** is not just an environmental choice; it is the clearest defence against a decade of rising bills. The rules will only tighten further, so 2026 is the year to lock your system in. Talk to our team at Best Solar Company PK for a free self-consumption audit and a design built for the net-billing era.

<em>Sources: <a href="https://www.nepra.org.pk/" target="_blank" rel="noopener">NEPRA</a> and reporting on the ISP 2025-35 approval and Prosumer Regulations 2026.</em>

Best Solar Company PK designs and installs reliable solar systems in Rawalpindi, Islamabad, Lahore, Multan, Taunsa Sharif and Karachi. Contact us for a free survey and the best advice for your home or business.