Yes, an apartment can run on solar in Pakistan, but it is a different problem from a house. The technology is the same. The difficulty is almost never the panels or the inverter. It is who owns the roof, who approves the installation, how the power reaches your meter, and whether there is enough space for the system you actually need.
This guide works through those four questions in order, then covers sizing, system type, costs and the options that exist when a rooftop of your own is not available. Get the first question wrong and nothing else matters, so start there.
Question 1: Who owns the roof?
In a house, the roof is yours. In most apartment buildings, the roof is common property shared by every owner, and you cannot simply bolt a structure to it.
Check your ownership documents. In some buildings the top-floor owner holds exclusive rights to the roof above their unit. In others, roof rights belong to the building association or builder. In many, ownership of the roof is unclear because nobody ever wrote it down. Read your sale or allotment documents and any building bylaws before spending money.
Get written approval. Whoever controls the roof, whether the association, the society management or the builder, should approve the installation in writing. A verbal “no problem” from a neighbour is not enough. Written approval protects you if a dispute arises later, and many installers will not start without it. It is also worth knowing what the approval covers: the roof area, the cable route, the weight of the structure, and who is responsible if something fails.
Expect objections and answer them. Neighbours usually worry about three things: roof leaks from drilled holes, wind damage to loose panels, and fire. A good installation answers each. Penetrations are sealed and weatherproofed, the structure is engineered for the building’s wind exposure, and the DC cabling, protection devices and earthing are installed to standard. Offering to show the design and to repair any damage in writing often turns resistance into agreement.
Question 2: How does the power reach your meter?
A house has a short run from roof to distribution board. An apartment can have a long one.
Each flat normally has its own electricity meter, and a system on the roof needs a cable route down to your unit. That means cable length, conduit through common areas, and permission to use shafts or ducts. Long runs cost more and, if undersized, lose power to voltage drop. Your installer should size the cable for the actual distance, not guess.
On-grid and net billing. Under NEPRA’s current net billing arrangements, a system exports surplus power to the grid and is credited at a rate well below the retail tariff, while imports are charged at the full slab rate. The rules are designed around a consumer connection with a meter, and how a roof system on shared property connects to an individual flat’s meter should be confirmed with your distribution company before you buy anything. Ask them in writing what documents they need from an apartment owner, because requirements can differ from those for a house and can change.
Because exported units are worth much less than units you use yourself, the economics of an apartment system depend on self-consumption, using the power as it is generated, rather than selling it back.
Question 3: How much space do you actually have?
Space limits the system more than money does in most flats.
A single modern panel of around 600 to 650 watts measures roughly 2.4 metres by 1.1 metres, about 2.7 square metres. Add spacing for maintenance access, row gaps to avoid self-shading, and clearance from the parapet and water tanks, and each panel realistically needs 4 to 5 square metres of roof.
| System size | Approximate panels (about 600W each) | Realistic roof area |
|---|---|---|
| 2kW | 3 – 4 | 12 – 20 m² |
| 3kW | 5 | 20 – 25 m² |
| 5kW | 8 | 32 – 40 m² |
| 7.5kW | 12 | 48 – 60 m² |
A typical building roof has to be shared with water tanks, staircase headroom, lift machine rooms, antennas and dishes. In a block with ten or more flats, the usable area per flat can be very small. This is where higher-efficiency panels earn their premium, because more watts per square metre means a bigger system in the same space, and it is worth reading about the high-output options in the Pakistani market before choosing.
Question 4: How big a system do you need?
Size by your actual consumption, not by what fits.
Apartments usually use less than houses: smaller floor area, fewer rooms, often one or two air conditioners. As a rough guide, a flat running fans, lights, a refrigerator and a television uses a few hundred units a month, while one with one or two air conditioners in summer can use a thousand or more.
| Typical flat | Monthly use | Sensible system |
|---|---|---|
| Fans, lights, fridge, TV, no AC | 150 – 300 units | 2 – 3kW |
| One AC in summer | 400 – 600 units | 3 – 5kW |
| Two ACs, summer | 800 – 1,200 units | 5 – 7.5kW |
Check your last twelve bills and take the average rather than designing around your worst summer month. Air conditioning is the usual driver of an apartment bill, and sizing for it is covered in our solar panels for 1 ton AC guide, which explains why solar output and AC demand do not match perfectly through the day.
If your roof space is smaller than the system you need, build the largest system that fits and accept that it will cover part of your bill. A system that covers sixty percent of your consumption is still far better than none.
On-grid or hybrid for a flat?
On-grid is cheaper and simpler. It runs only while the grid is up, which means it shuts down during loadshedding. In a building with frequent outages, a plain on-grid system gives you savings but no backup.
Hybrid with a battery keeps essentials running during outages and lets you use stored daytime power in the evening. It costs more and needs space for the battery, ventilation and fire safety, which can be harder in a flat than in a house. Hybrid inverters and what to compare are covered in our hybrid inverter price in Pakistan guide.
Battery storage is the most variable cost in a system, so WhatsApp us now for the latest price of the battery at 03192070022. If you are choosing chemistry and brands, our lithium battery guide explains how to size and compare them.
A battery should go where heat and moisture are controlled and where it is not blocking an exit. Many buildings and insurers care about this, so ask your management what rules apply before choosing a location.
What it costs
These are indicative installed costs for a rooftop system in Pakistan, covering panels, inverter, mounting, cabling, protections, labour and standard paperwork.
| System | Type | Approximate installed cost |
|---|---|---|
| 3kW | On-grid | Rs 380,000 – 520,000 |
| 5kW | On-grid | Rs 620,000 – 820,000 |
| 7.5kW | On-grid | Rs 880,000 – 1,150,000 |
Apartments often carry extras that a house does not: longer cable runs, conduit through common areas, structure that suits a parapet roof, lifting equipment for a high floor, and approval or documentation fees. Ask your installer to list these separately so the quotation is comparable. Rates move with the dollar and container arrivals, so confirm today’s figures on WhatsApp.
Design points specific to apartment roofs
Wind. High floors see stronger wind, and a panel array behaves like a sail. The structure must be anchored properly to the slab, not simply weighted, and designed for the building’s exposure. Tilt angles are sometimes kept lower on tall buildings to reduce wind load.
Weight and waterproofing. Ballasted structures add load, and drilled ones create leak points. Choose the method that suits the slab and seal every penetration. Ask for the roof’s load capacity if the building is old.
Lightning and earthing. A high roof is a lightning target. The array needs proper earthing, surge protection and a bonded connection, which are part of a safe installation. The principles, including coastal considerations, are set out in our solar panel installation in Karachi guide, and they apply anywhere in the country.
Shading. Water tanks, parapet walls, neighbouring buildings and lift rooms cast shadows that move through the day. Get the installer to check the roof at several hours before finalising the layout.
Access and maintenance. Panels need washing, and the inverter needs inspection. Make sure there is safe access to the roof and a clear route for a technician.
Fire safety. DC isolators, labelled cables and a clear shut-off location matter more in a shared building. Tell your management where the isolator is.
If you do not have roof rights
You still have options.
- Share the roof formally. Agree an allocation with other owners, with a written plan showing each owner’s area, and install separate systems or a shared one.
- Build a shared system. Owners jointly fund a system that supplies common loads such as lifts, pumps and corridor lighting, reducing the common maintenance bill for everyone. The legal and billing arrangements need care, so involve your association and a qualified installer.
- Use a covered parking or car-park canopy, if the building has one and the management agrees. This also gives shade to vehicles.
- Consider a small balcony or window setup for light loads. Output is limited by space and orientation, and balcony installations need the building’s permission too, but they can cover fans, lights and small devices.
- Wait for the building to adopt solar, and push for it through your association. A single approved plan is far easier than many private ones.
Renting a flat
If you rent, a fixed rooftop system is rarely sensible unless the landlord agrees and the lease runs long enough to recover the cost. A better approach is to ask the landlord to invest, or to negotiate rent that reflects the savings. A portable or small system you can take with you is safer for a tenant than a large permanent installation.
Choosing panels and an installer for a flat
Panels. Because space is the limit, panel efficiency matters. Genuine, documented A-grade modules from established brands give you the most output per square metre and a warranty you can rely on.
Installer. Prefer one with experience on apartment and high-rise roofs, who will survey the building, discuss approval, cable routing and wind loading, and put the scope in writing. Beware of quotes that skip the survey.
Paperwork. Keep your approval letter, the quotation, the equipment invoice and panel serial numbers in one folder. You will want them for grid paperwork and any warranty claim.
Getting started with BuySolars
Send us your area, floor, roof situation, average monthly bill and what you want to power, and we will suggest a system size, panel option and layout suited to a flat. We deliver across Pakistan with nationwide delivery, and current stock is on our products page.
WhatsApp 03192070022 with your monthly bill and roof details for an apartment-specific quote.
Yes, if you have roof rights or written approval from the association or builder.
Usually yes. Get written approval from whoever controls the common roof.
Often three to eight panels, depending on how much usable area is allocated.
On-grid is cheaper, while hybrid keeps essentials running during loadshedding but needs battery space.
Only with the landlord’s agreement. A small portable system is usually safer for renters.