Electricity Saving Tips — Cut Your MEPCO Bill at Home
Most of a home's electricity goes to a handful of appliances. These habits — most of them free — take a real slice off your monthly units, and thanks to the way slabs work, savings near a boundary are worth far more than they look.
First, the slab warning: saving can pay double
Before any tip, understand the prize. For an unprotected home, MEPCO does not charge early units cheaply and later units dearly — every unit in the month is billed at the single rate of the slab your total reaches. At 200 units, all 200 are charged at the 101–200 slab rate; at 201 units, all 201 are repriced at the higher 201–300 rate. That is why one careless week in summer can add thousands of rupees, and why saving even 10–15 units near a boundary is worth much more than 15 times the per-unit rate. Keep this in mind as you read: the last units of the month are the most expensive ones. The full slab table is on the tariff page.
The big three
1. Air conditioning
The AC is the largest load in most South Punjab homes from April to September, and small changes here beat everything else combined. Set the thermostat to 26–27°C — every degree lower makes the compressor work noticeably harder and costs noticeably more, while a ceiling fan running alongside lets you raise the setpoint and feel just as cool, because moving air feels cooler than still air. When buying or replacing, choose an inverter AC sized for the room: too small and it runs flat-out all day, too large and it wastes money cooling in short bursts. Seal the room (close doors, use curtains on sun-facing windows), and clean or wash the filters regularly — a choked filter makes the unit run longer for the same cooling.
2. Water motor / pump
A motor typically draws several hundred watts to over a kilowatt, and it runs every day. Fill the overhead tank once, in one full run, rather than topping it up in many short bursts. Fix leaking taps, pipes and the tank's float valve — every leak quietly calls the motor back to work. And if your home is on a time-of-use meter, run the motor outside the evening peak window (see peak hours).
3. Iron & washing machine
An iron is one of the heaviest small appliances in the house, and reheating it repeatedly wastes power. Batch your ironing into one or two sessions a week instead of pressing a few clothes daily. For washing, wait for full loads, use normal (unheated) water for everyday laundry, and let the sun do the drying — in our climate it is free and fast.
Appliance by appliance
| Appliance | Typical power (roughly) | Habit that saves |
|---|---|---|
| Ceiling fan | Old models ~75–100 W; inverter/DC fans ~30–55 W | Switch off when you leave the room. When an old fan needs replacing, an inverter/DC fan can cut its consumption by about half. |
| Light bulbs | LED ~7–12 W vs old incandescent ~60–100 W for similar light | Replace remaining old bulbs with LEDs, starting with the ones that stay on longest — porch, kitchen, courtyard. |
| Refrigerator | ~100–250 W, running in cycles all day | Use a medium setting (fridge around 3–5°C, freezer around −18°C), check that the door seals close tightly, leave a gap of a few inches behind it for air flow, and do not overload it or hold the door open while deciding. |
| TV & standby loads | TV ~60–150 W; standby is small but runs 24 hours | Switch off at the socket or use a power strip for the TV, receiver and chargers — standby draw never sleeps. |
| Electric geyser | ~1,500–3,000 W | Heat water for shorter periods, insulate the tank and hot pipes, and put it on a timer so it is not keeping water hot all day. A solar geyser removes most of this load entirely. |
| Microwave & kettle | ~800–2,500 W | Only heat what you need: boil one cup's water, not a full kettle, and reheat single portions instead of the whole pot. |
Power figures are typical ranges for common household models, not exact specifications — your appliance's label is the final word.
Units math made simple
One unit = 1 kilowatt-hour (kWh) — that is an appliance of 1,000 watts running for one hour. The formula is: watts × hours ÷ 1,000 = units. Two quick examples:
- A 100 W fan running 10 hours uses 100 × 10 ÷ 1,000 = 1 unit. Run it all month like that and it alone accounts for about 30 units.
- A 1,500 W iron used for 1 hour uses 1,500 × 1 ÷ 1,000 = 1.5 units — one long ironing session is fine; daily reheating adds up.
Now make it real: open the bill calculator and see what 100 fewer units does to your total. For a home near a slab edge, the drop is bigger than most people expect.
Summer vs winter
Summer bills are dominated by cooling — ACs first, then fans running around the clock. Summer is also when homes drift across the 200-unit line without noticing, so the AC habits above matter most between May and August: setpoint discipline, sealed rooms, fans doing the supporting work.
Winter shifts the load to heating water and rooms: the electric geyser and, worst of all, electric room heaters. A resistance heater is the most expensive way to warm a room — a 2,000 W heater burns 2 units every hour it runs. Warm one room instead of the whole house, use sunlight and warm clothing first, and keep geyser use short and timed. Gas heating, where safely available, is far cheaper than electric heating.
Thinking bigger: solar
Habits can trim your bill, but if your roof and budget allow it, rooftop solar changes the equation entirely — and with net metering, surplus units you export are credited against what you import. If you are considering it, read our guide to solar net metering for how the MEPCO process works.