Most Singapore homeowners will haggle hard on a renovation quote, read every line of a mortgage refinancing offer, and spend half an hour on hawker reviews before committing to a S$5 lunch. The SP bill, however, just arrives, gets GIRO’d, and disappears. It’s the biggest recurring household expense outside the mortgage and the one that typically gets the least scrutiny.
For landed homeowners, it’s also the biggest in raw dollar terms. According to SP Group, a bungalow consumes 1,918 kWh per month compared to a 1-room HDB flat’s 118 kWh. That’s more than sixteen times as much, which at the Q2 2026 tariff of 29.72 cents per kWh works out to roughly S$570 against S$35 for electricity alone.
What drives the gap, and what brings it back down?
Three lines dominate the monthly statement: electricity, water, and gas. The money leaves mostly through the first one.
Electricity is measured in kilowatt-hours (kWh). The formula is simple.
kWh consumed × tariff per kWh = the electricity charge on the bill.
Divide monthly kWh by 30 for daily use, or by 720 for hourly. A home using 370 kWh per month averages 12.33 kWh per day, or 0.51 kWh per hour, which at Q2 2026 rates works out to about S$110 a month.
SP Group reviews the regulated tariff every quarter, adjusted for fuel costs, carbon tax, and GST. Q2 2026 (April to June) is 29.72 cents per kWh including 9% GST. Recent quarters have ranged from around 23.89 cents to over 32 cents per kWh.
Open Electricity Market (OEM) retailers offer fixed-rate plans that can undercut SP by 1 to 3 cents per kWh. A modest saving, though the electricity itself still comes from the same grid. Generating electricity on your own roof is the only way to step off the tariff curve entirely.
| Home type | Typical monthly utility bill |
| 1–2 room HDB | S$50–S$80 |
| 3-room HDB | S$90–S$130 |
| 4-room HDB | S$100–S$150+ |
| 5-room HDB | S$130–S$180+ |
| Condominium | S$175–S$250 |
| Executive maisonette | S$220–S$280 |
| Terrace house | S$240–S$350 |
| Semi-detached house | S$300–S$400+ |
| Bungalow | S$400–S$600+ |
Landed homes typically use five to sixteen times more electricity than small HDB flats (SP Group, March 2026). A bungalow’s monthly consumption of 1,918 kWh would power a 1-room flat for well over a year.
Bigger households inevitably use more electricity, though per-person consumption drops as the household grows. Shared fridges and shared aircon units don’t split their energy use by occupancy, which is why a 5-person family often pays less per head than a couple living alone.
But of course, not every kilowatt-hour costs the same to run up.
Air-conditioners are the single largest electricity draw in a typical home, accounting for around 30% of household electricity consumption per NEA figures.
Running the unit for eight or nine hours every night is where most of the damage compounds. Setting it to 20°C and sleeping under a blanket is a reliable way to pay for two climate systems in the same room.
Air-conditioners, water heaters, and refrigerators together account for around 75% of the typical home’s electricity use, which makes the energy rating on each of them the decision that matters most.
Per NEA’s own analysis, even moving from a 1-tick to a 2-tick aircon saves roughly S$100 per unit per year in electricity. Moving from 3-tick to 5-tick across multiple aircon zones in a landed home compounds that by several times over.
On a per-use basis, dryers sit among the most energy-hungry appliances in a home, because generating heat takes real power. Using one in Singapore means paying SP to add heat to a country that already supplies 32 degrees for free.
Most households skip the dryer and hand the job to the balcony rail and a ceiling fan, which is part of why washing machine, dryer, and iron combined account for only around 3% of the average household’s total electricity.
OEM retailers offer fixed-rate plans that typically sit 1 to 3 cents per kWh below SP’s regulated tariff. For a 4-room HDB averaging 325 kWh per month, the monthly saving usually works out to somewhere between S$3 and S$10.
HDB households receive quarterly U-Save rebates under the permanent GST Voucher scheme, with smaller flats getting the most. For FY2026, eligible households receive up to S$570 over four quarterly disbursements (April, July, October, January). Landed homeowners don’t qualify.
Four things that actually cut the electricity bill:
These help, but they don’t change the fundamental problem, which is that every kilowatt-hour is still being bought from the grid at grid rates.
Most Singaporean homeowners treat electricity as a permanently climbing line on the household budget. For landed homeowners, that assumption is already out of date. Rooftop solar has moved from premium purchase to standard option, and the savings are in a different league from anything an OEM retailer can match.
Solar generates electricity directly from the roof, cutting grid consumption at the source. Where an OEM plan saves 1 to 3 cents per kWh, a well-designed solar system can reduce grid reliance by 50% to 80%, depending on usage, system size, and tariff plan.
Excess solar is exported back to SP Group under the SCT/ECIS scheme, earning credits that reduce the bill further. For some landed homes, the SP bill lands at zero, or in credit, during high-sun months.
A 10 kWp system typically generates around 12,500 kWh per year, or roughly 1,041 kWh per month. That’s enough to offset a chunk of a landed home’s consumption. Over 25 years, a landed property could save up to S$60,000 on electricity, depending on usage, tariffs, and system size.
FOMO Energy’s Rent-to-Own programme is available for landed homes and commercial or industrial buildings in Singapore. HDB flats aren’t eligible, since the rooftop isn’t private to the household. For the homes that do qualify, the programme removes the upfront cost, replaces a S$30,000 to S$50,000 capital outlay with a fixed monthly fee, and transfers full ownership at the end of the term. Savings start on day one, not in year seven.
If you’ve been watching the SP bill climb without any way to cap it, there has never been a better time to look at solar. Tariffs keep moving, consumption isn’t slowing, and the sun over your roof keeps doing its part regardless.
Our team at FOMO Energy handles the full process, from roof assessment and system design to solar panel installation, monitoring, and long-term maintenance.
Book a free site assessment today and find out what your roof is actually worth.
