Electricity bill still high after solar

Policy facts were checked on 14 October 2026. If your bill shows no export credit at all, read our guide to net billing credit not showing. If the panels are producing less than expected, see why a solar system produces less.

Bill high after solar: what it usually means

Solar reduces the units you buy from the grid. It does not change everything else on the bill. Your bill after solar is still made of:

• Imported units at your tariff and slab, plus per-unit adjustments where they apply.
• Fixed charges, which since 2026 are charged per kW of sanctioned load. Solar cannot remove them; see fixed charges on electricity bills 2026.
• Sales tax and other levies on the bill amount.
• Export credit, if you have a net billing or net metering agreement.

So a high bill can mean the system is fine and the bill follows the rules, or that something is wrong. The checks below separate the two.

Why is my bill high with solar? Quick-check table

Solar installed but bill high: owner checks, step by step

These checks use your bill, your meter display and your app. Do not open the inverter, the distribution board (DB) or any DC wiring.

1. Compare like with like. Use the same month last year, and compare units imported, not the rupee total.
2. Read the bill lines. Note imported units, exported units, fixed charge, adjustments and taxes. Our bill reading guide shows where each one is.
3. Read the meter. AMI and bidirectional meters show separate import and export registers. Photograph both with the date.
4. Open the monitoring app. Note today's yield, the monthly yield, consumption, and grid import and export. Our solar monitoring app guide shows where to find them.
5. Do the noon test. On a clear day around 12 to 1 PM, with normal loads running, look at the app's grid flow. If the house is importing a lot from the grid while the panels are producing well, something is not set up as intended.
6. Read the inverter screen. Photograph the work mode, any alarm and the battery percentage. Our guide to SBU, SUB and utility-first modes explains what the modes mean. If the inverter shows bypass or line mode in daylight, see inverter bypass mode.
7. Look at night use. Check the hourly consumption graph after sunset. On a home with solar, most imported units are often used after sunset.
8. List changes. New ACs, an EV, longer AC hours or a new pump can hide the saving.
9. Send it to your installer. Share the bill, meter photos, app screenshots and inverter photos together.

If the app numbers look wrong in themselves, for example consumption showing negative, read solar app showing wrong data before drawing conclusions.

Electricity bill not reduced after solar: a worked example

Example arithmetic only, using round illustrative numbers, not your tariff. A home used 800 units in July before solar. After installing a hybrid system:

• It imports 450 units, mostly at night, and exports 300 units at midday.
• Under net billing, the 450 imported units are billed at an illustrative Rs 50, about Rs 22,500.
• The 300 exported units are credited at an illustrative Rs 11, about Rs 3,300.
• Energy cost after credit: about Rs 19,200, plus fixed charges and taxes.

Under old net metering, the 300 exported units would have cancelled 300 imported units one for one. Under net billing they do not, so the owner sees a much smaller drop than a neighbour on the old terms. The fix here is not a repair. It is using more solar in daylight, or storing it for the evening, so fewer units are imported. Our net billing guide explains the rules, and sizing under net billing explains why self-use matters most.

What an engineer will check

If the owner checks point to a technical cause, an engineer will usually look at:

• Generation against design. String voltages and currents, compared with each other and with expected output.
• Inverter settings. Work mode, export limit, grid-charging, time-of-use charge windows and battery cut-off levels. A battery set to charge from the grid at night, or to stop discharging too early, can add many units a month; see charging the battery from the grid.
• CT or meter sensor wiring. On hybrid and export-limited systems, the inverter reads grid flow through a current sensor or smart meter. If it is fitted the wrong way round or on the wrong phase, the inverter can import when it should export, or limit output for no reason. See zero export not working.
• Battery health. A battery with reduced capacity empties earlier in the evening.
• Standby draw. Every inverter uses a little power when switched on; on battery systems this matters overnight. See inverter self consumption.
• Sizing. Whether the system was sized for your daytime load, or is simply too small for your use.

How to keep the bill down after solar

• Move heavy loads into daylight. Run the washing machine, iron, water pump and extra AC hours between about 10 AM and 3 PM.
• Use a battery for the evening peak, if you have one, rather than letting it charge from the grid. See peak hours and your solar battery.
• Watch the 200-unit line if your home is close to protected status; see protected vs unprotected consumers.
• Photograph the meter monthly on the same date, and keep bills and app screenshots together.
• Check the app weekly, so a fault does not run for a whole billing month. Before adding panels or a battery, use 12 months of bills and the solar calculator.

How Solar Works can help

Solar Works Pakistan designs every system in-house and installs it with its own teams, from about 6 kW to megawatt scale, across Punjab. We size around your daytime load and include fixed charges and net billing in the sums before recommending a system. If you are a Solar Works customer, WhatsApp 0336 666 4321 with photos of your bill, the meter display, the inverter screen and the app, and the inverter model. Our 1-year service warranty applies under the applicable project terms; see how after-sales service works.

We can also review bills, inverter settings and monitoring data for systems installed by other companies, as a chargeable service.

Frequently asked questions

Why is my bill high with solar installed?

Usually because fixed charges, taxes and adjustments stay on the bill, exports are credited at a lower rate under net billing, or you still import many units at night. Less often, the system is under-producing or an inverter setting is pulling power from the grid. Compare units, not rupees, with the same month last year.

Why is my electricity bill not reduced after solar?

Check whether your imported units have fallen. If they have, the fixed charge, taxes or a slab change may be holding the total up. If they have not, check the app for low production and do the noon test: heavy grid import at midday on a sunny day points to a settings or wiring issue.

Why is my bill higher than my neighbour's with the same solar system?

Their agreement may be under old net metering terms while yours is under net billing, or their night use, slab and sanctioned load may be different. Compare units imported and exported, not just the total.

Can a wrong inverter setting increase my bill?

Yes. Grid charging of the battery, a utility-first mode or a battery cut-off set too high can all increase imported units. An engineer should check and change settings, following the inverter manual.

My app shows high export but my bill shows little credit. Why?

Under net billing, exported units are credited at the national average energy purchase price, reported at about Rs 11 per unit when the rules were notified, while imports are billed at your full tariff. If the bill shows no export at all, follow our guide to net billing credit not showing.

Do you check high bills for systems installed by other companies?

Yes, as a chargeable review across Punjab. Send your bills, meter photos and app screenshots on WhatsApp 0336 666 4321 first so our engineers can advise.

Sources

1. Aaj News, "Net billing shock: NEPRA's new rules push up power bills" (10 Feb 2026): https://english.aaj.tv/news/amp/330452305
2. Pakistan Observer, "LESCO to issue new electricity bills to solar users for January 2026"