• By Best Solar Company PK
  • 23 Sep, 2026
  • Solar Guides
  • 8 min read

Pakistan is in the middle of a rooftop solar boom that few countries have ever matched. Now a new September 2026 study is asking the obvious next question: what if all those solar homes stopped acting alone — and started sharing power with the house next door? That idea is called a **swarm grid**, and it could reshape how ordinary Pakistani neighbourhoods buy, sell and store electricity.

This guide breaks down the study for homeowners and small businesses: what swarm grids are, why they matter now that net metering has ended, and what the real PKR numbers look like in 2026.

What the PRIED study actually says

The report comes from the Policy Research Institute for Equitable Development (PRIED), which in September 2026 released two linked publications — *Harnessing Pakistan's Solar Revolution: A Techno-Economic Assessment of Swarm Electrification* and *Swarm Grids: The Next Phase of the Solar Boom*.

PRIED's core finding is blunt: swarm grids are **technically feasible in both cities and villages**, though the economics differ by location. The researchers tested the concept in two very different places:

  • **Islamabad (urban):** Sector G-13, a dense, mixed-demand neighbourhood on an established grid, showed stronger commercial appeal and near-term viability.
  • **Tharparkar (rural):** Thario and Khario villages in Sindh proved technically workable but need targeted, time-limited financial support to get started.

The backdrop is staggering. According to the study and market data, Pakistan now has roughly **33 GW of solar installed** across sectors, solar module imports have crossed **50 GW**, and about **18% of households already have panels** — while **80% still lean on the grid**. Net-metered rooftop capacity alone jumped from just 190 MW in 2020 to nearly **7,000 MW by mid-2026**.

So what exactly is a swarm grid?

Think of it as a digitally coordinated, local sharing network. PRIED defines a swarm grid as a decentralised neighbourhood system in which households and businesses can:

  • Consume their own rooftop solar first
  • Store surplus in shared or home batteries
  • **Sell extra power to neighbours** who don't have panels
  • Buy power from nearby "prosumers" when they fall short
  • Use the national grid mainly as a backup

A swarm grid isn't built top-down like a mini-grid. It grows organically — one solar rooftop at a time — until a cluster of homes is effectively running its own small, self-balancing power network.

The clever part is the battery layer. Community-funded storage, sized for each neighbourhood, shifts cheap daytime solar into the evening peak — directly tackling the "duck curve" problem where solar floods the system at noon but disappears by Maghrib.

Why this matters right now: the net billing shift

The timing is not an accident. On **9 February 2026**, NEPRA replaced net metering with a **net billing** model under the Prosumer Regulations, 2026. That single change is why swarm grids suddenly look attractive.

Under the old net metering, one unit you exported cancelled one unit you imported. Under net billing, that clean swap is gone:

  • Exported power is now bought from **new** consumers at a much lower rate — reportedly cut to around **Rs 8.13 per unit**, down from Rs 25.32.
  • Imported power is still billed at the full retail tariff, which can reach **Rs 45–50 per unit** in higher slabs.

That gap changes the maths completely. Selling surplus to the grid barely pays. **Consuming or sharing your own generation locally** is now where the value is — which is exactly what a swarm grid is designed to do.

| Feature | Old net metering | Net billing (2026) | Swarm grid model | |---|---|---|---| | Export value | ~Rs 25.32/unit | ~Rs 8.13/unit (new users) | Shared with neighbours at a fair local price | | Import cost | Offset 1:1 | Full tariff (up to ~Rs 50/unit) | Grid used mainly as backup | | Best strategy | Oversize the system | Self-consume | Share + store within the cluster | | Battery need | Optional | Recommended | Central to the design |

If you already hold a net metering agreement, note that existing consumers are **grandfathered** at old rates for the life of their contract. New applicants get the net billing terms.

What it could mean for your bills

Nothing here requires a lab. A typical 10 kW residential system in 2026 costs roughly **PKR 1.5–2.2 million** installed, with A-grade panels at about **Rs 27–45 per watt**. Under net billing, a chunk of your midday surplus would otherwise be sold for a pittance.

In a swarm grid, that same surplus could be sold to a neighbour for far more than Rs 8 — and still less than the Rs 50 they'd pay the grid. **Both sides win**, and money stays in the community instead of vanishing into export credits. For families who can't afford their own system, swarm grids offer a route to cleaner, cheaper power without a big upfront cost.

For a broader view of how the rules changed, see our net metering to net billing explainer and our guide to choosing the right solar battery.

The catch: what still needs to happen

Swarm grids aren't plug-and-play yet. PRIED is candid about the hurdles:

  • **No legal framework** currently lets neighbours formally trade electricity peer-to-peer.
  • **Metering and settlement** systems need to fairly track who sold what to whom.
  • **Rural clusters** like Tharparkar need transitional (not permanent) subsidies to launch.

PRIED's recommendation is practical: don't wait for perfect conditions. Launch **pilot projects under a regulatory sandbox**, prove the model, then scale. For the government, it's a way to relieve a strained grid; for citizens, it turns a fragmented rooftop boom into a genuine community asset.

Frequently Asked Questions

**What is a swarm grid in simple terms?** It's a small, digitally managed local network where solar homes in a neighbourhood share, store and trade electricity with each other, using the national grid only as backup. It grows naturally as more rooftops go solar.

**Are swarm grids legal in Pakistan in 2026?** Not yet in a formal, peer-to-peer sense. The PRIED study recommends pilot projects under a NEPRA regulatory sandbox to create the legal and metering framework before nationwide rollout.

**How is a swarm grid different from net metering or net billing?** Net metering and net billing are deals between you and the grid. A swarm grid is a deal between you and your neighbours — you sell surplus locally at a fairer price instead of exporting it for around Rs 8 per unit.

**Do I need batteries for a swarm grid?** Batteries are central to the concept. Shared or home storage shifts daytime solar to the evening peak, which is when demand — and grid tariffs — are highest. Without storage, most benefits shrink.

**Will my existing net metering agreement still work?** Yes. Consumers with agreements signed before the February 2026 changes are grandfathered at their original buyback rates for the contract's duration. Only new applicants fall under net billing.

The bottom line

Pakistan didn't plan its solar revolution — households built it to escape rising bills. The PRIED study argues the next phase should be just as bottom-up: let neighbourhoods pool their rooftops into swarm grids that keep power, and money, local. With net billing making grid exports far less rewarding in 2026, sharing solar next door may soon beat selling it back.

**Thinking about going solar or adding storage before the rules tighten further?** Talk to Best Solar Company PK for a system sized for self-consumption and swarm-ready storage — so you're ready for whatever the grid does next.

*Sources: PRIED, Business Recorder, and NEPRA Prosumer Regulations 2026.*

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.