30 September 2026

Written by Alwin Goh

A rise in wholesale electricity prices does not tell you exactly what your next home electricity bill will be. The effect depends on your plan, how much electricity you use and whether your contract is ending soon.

If your household has little room for an unexpected bill, price certainty may matter more than chasing the lowest possible rate. If you might move home during the contract, flexibility deserves equal attention.

Tariff check as of 30 September 2026: SP Group’s tariff information still shows the July to September 2026 household rate of 31.91 cents per kilowatt-hour (kWh) before GST, or 34.78 cents with GST. That rate was 17.0% higher than the previous quarter. SP Group usually announces each new quarterly tariff in the last days of the preceding quarter, and the October to December 2026 rate had not been published at the time of writing. Treat the Q3 figure in this guide as a reference point, not a Q4 quote.

The main options differ in how often the price changes and how much commitment they require. Use this comparison to narrow your choices before checking actual offers.

Electricity OptionHow the Price WorksBest Suited ForMain Trade-Off
SP Regulated TariffReviewed every quarterHouseholds that want a quarterly benchmark without a retailer contractThe rate can change every quarter
Fixed Price Retail PlanAgreed unit rate for the contract periodHouseholds that want a predictable rate and can commit for the full termYou may pay more if other rates fall
Discount Off Tariff Retail PlanDiscount applied to the prevailing regulated tariffHouseholds that accept quarterly changes and want a discount linked to the tariffA fixed discount does not mean a fixed bill
Wholesale Electricity PriceRates change every half hour with market supply and demandHouseholds that understand the volatility and can absorb itCosts are the least predictable

What Is Confirmed Before Q4 2026?

The Straits Times reported that the weekly Uniform Singapore Energy Price (USEP) reached S$486.21 per megawatt-hour (MWh) for 13 to 19 September 2026, the highest level so far this year.

USEP is the wholesale spot price. EMA explains that power generation companies submit offers every half hour stating how much electricity they can supply and at what price, and that these offers are heavily influenced by fuel costs. This makes USEP a different measure from the all-inclusive rate a household pays.

One MWh equals 1,000 kWh, so the reported figure works out to S$0.48621 per kWh, or about 48.6 cents. This conversion only changes the unit. It does not turn a weekly wholesale average into a tariff, a retail offer or a complete bill.

For Q4, separate confirmed rates from forecasts. Check the effective dates on SP Group’s official announcement, then use that rate when comparing October to December costs. Do not carry the Q3 tariff forward just because it is the latest number you have seen.

How the Electricity Options Differ

SP Regulated Tariff

The regulated tariff is the default option for most households. It is set by SP Group, regulated by the Energy Market Authority (EMA) and revised every quarter.

According to EMA’s explanation of how the regulated tariff is set, it is based on average daily natural gas prices in the first two and a half months of the preceding quarter. For example, gas prices from 1 January to 15 March are used to set the April to June tariff. The tariff also covers non-fuel costs such as network charges.

A weekly USEP spike therefore does not automatically produce an identical tariff increase. The two prices are calculated differently, although fuel costs affect both, and changes in gas prices can take a quarter to show up in your bill.

This option lets you review your position each quarter instead of committing to a retailer’s fixed term. You still need a budget that can absorb a higher rate later.

Fixed Price Retail Plans

A fixed price plan holds the contracted unit rate steady for the agreed period. Your total bill still rises if you use more kWh.

EMA’s guide to buying electricity from a retailer separates standard and non-standard price plans. Standard plans have all-inclusive rates that do not change during the contract, no recurring fees and a contract period of 6, 12 or 24 months. Non-standard plans may have rates that are not all-inclusive, rates that change during the contract, or recurring charges.

Fixing a rate can make budgeting easier. The trade-off is that a cheaper offer may appear while you are still committed, and an attractive rate is less useful if leaving the contract would wipe out the savings.

Discount Off Tariff Retail Plans

These plans apply a percentage discount to the prevailing regulated tariff. The discount stays the same while the tariff underneath it changes.

For example, a hypothetical 10% discount means paying 90% of the applicable tariff rate. If the tariff rises, your discounted rate rises too. That is a different commitment from locking in a fixed rate in cents per kWh.

Check how long the discount lasts and what happens after any promotional period. A percentage on its own does not tell you the cost over the time you plan to stay on the plan.

Wholesale Electricity Price

EMA warns that buying at wholesale electricity prices, which change every half hour, is a riskier option that offers less price certainty than the alternatives.

If you are already on this arrangement, review your actual billed costs and all applicable charges. A weekly market average alone is not enough to estimate what you will owe.

Being able to monitor prices does not mean you can absorb a large bill. If one volatile month would leave you short for essentials, compare options with more price certainty and confirm the switching terms.

How to Compare the Full Cost

Person reviewing receipts and using a calculator to compare household electricity costs

Start With Your Own Consumption

Take the kWh figure from your last three bills and use it to build a realistic monthly estimate, adjusting for any month that was unusually high or low.

Do not use your total utilities bill as your electricity figure, because water, gas and other charges may be included. A lower bill after a rebate also does not mean you used less electricity.

If you expect more air conditioning use, an extra household member or more days working from home, calculate a second, higher estimate. This shows whether an offer stays manageable when usage rises.

Put Quotes on the Same Basis

Compare rates that include GST with other rates that include GST. Confirm whether the advertised rate covers every electricity charge and whether any recurring fees apply.

At a hypothetical 400 kWh a month, the Q3 2026 tariff of S$0.3478 per kWh with GST produces an electricity usage charge of S$139.12. This excludes other utilities and is not an estimate of the Q4 tariff.

For a fixed rate offer, start with this calculation:

Estimated cost = expected kWh × quoted rate + applicable fees − rebates you qualify for

Use a period that matches how long you expect to keep the plan. A two-year promotion should not be compared with a one-month bill without accounting for its conditions.

Test What a Rebate Is Really Worth

Consider two invented 12-month fixed price offers for a household using 400 kWh a month. Both rates include GST, and the example assumes no other fees and full eligibility for the stated rebate.

Comparison ItemPlan APlan B
Unit Rate30 cents/kWh29 cents/kWh
Annual Consumption4,800 kWh4,800 kWh
Usage CostS$1,440S$1,392
Eligible RebateS$60None
Estimated Annual CostS$1,380S$1,392

Plan A costs S$12 less over the year despite its higher unit rate. Without the rebate, it would cost S$48 more. If the rebate depends on a payment method you will not use, leave it out of your comparison.

Repeat the calculation at your own usage level. A one-off rebate matters more to a household with low usage, while a small rate difference becomes more significant as consumption rises.

For discount off tariff or wholesale plans, applying one unchanged rate over 12 months is only a scenario. Run the numbers at a few different rates instead of treating today’s price as a guaranteed annual cost.

What to Check Before Renewing or Switching

Person calculating bills before checking electricity contract renewal terms

Read the Full Terms

Before signing, ask the retailer for the plan’s Fact Sheet, Consumer Advisory and full contract. EMA advises paying particular attention to the contract duration, payment terms, security deposit, early termination charges and automatic renewal clauses. Keep the written offer so you can check it against your bills later.

Contract Details to Confirm

  • Contract End Date: When does your current agreement end, and when can the new one start?
  • Renewal Terms: Does the contract renew automatically, and at what rate? Since 19 June 2026, EMA requires retailers to notify you twice before an automatic renewal: first at least 10 days before expiry, then again within three days before or on the renewal date. The renewed rate cannot be higher than the prevailing regulated tariff.
  • Early Termination Charges: What would you pay to leave, and would you have to return any promotional benefits?
  • Moving Home: Can the contract move with you to a new address, or would moving trigger charges?
  • Rebate Conditions: When is the rebate credited, and could you lose it if you leave early?
  • Payment Requirements: Does the offer depend on a specific payment method, such as GIRO or a particular credit card, or on paying on time?
  • Deposit and Fees: How much cash do you need upfront, and which amounts are refundable?

Treat a refundable deposit separately from the plan’s cost. It still affects your cash flow when you sign up.

Suppose a new offer saves an estimated S$8 a month for ten months, but leaving your current contract costs S$150. The S$80 saving would not cover the exit charge, so waiting until your contract ends may give a different result. If your contract has just renewed automatically, check the dates: retailers must waive early termination charges within the first 60 days of an automatic renewal.

Also check the start date. If your home does not yet have an advanced electricity meter, EMA notes that a retail contract can only start after SP Group installs one, which typically takes up to a month. Any gap between your current contract ending and the new one starting needs to be priced into your decision.

Which Plan Fits Your Household?

You Need Predictable Monthly Commitments

A fixed price plan is worth comparing if you want a stable unit rate and expect to stay for the full contract. Budget separately for changes in consumption, since the contract does not cap your total bill.

Choose a contract period you can realistically keep. A longer commitment is not automatically better just because its advertised rate is lower.

You Need Flexibility

If you may move or your living arrangement is uncertain, compare the regulated tariff with offers whose exit terms suit that uncertainty. Work out what leaving early could cost before deciding how much a lower rate is worth.

The cheapest offer over a full contract can turn out to be expensive if you leave after a few months.

You Are Comfortable With Tariff Changes

A discount off tariff plan may suit you if you are comfortable with quarterly changes. Ask whether its discount period, fees and renewal conditions match how long you expect to stay.

Keep some room in your budget for a higher tariff. A discount lowers the rate you pay, but it does not protect you from movements in the underlying tariff.

You Are Considering Wholesale Prices

First decide how much variation in your bill your household can tolerate, then assess the pricing arrangement and the alternatives. A plan that needs close monitoring may be a poor fit if you already find it hard to keep track of regular bills.

Do not assume a recent low market price will continue, or that a recent high means the next month will be worse.

Keeping Electricity Within Your Budget

Separate changes in the rate from changes in consumption. If a bill rises, compare the kWh used and the effective unit price before deciding what to change.

Try one practical change at a time, such as cutting unnecessary air conditioning hours. Check whether consumption falls over a comparable billing period, allowing for differences in weather and time spent at home.

If utilities keep exceeding your allowance, rebuild your budget using recent bills rather than an old estimate. This step-by-step guide on why a monthly budget keeps failing shows how to spot unrealistic limits and overlooked expenses.

If you already cannot pay a bill, contact the billing provider promptly to discuss your situation. Switching plans only affects future costs; it does not settle an overdue balance. Avoid taking on repayments that your regular income cannot support.

Also read: How to prioritise bills and avoid a debt spiral during a monthly cash shortfall

Before You Choose

Put your latest electricity bill beside the current tariff announcement and at least two written quotations. Compare them using the same usage, the same GST treatment and the same time period, then work out what leaving early would cost.

Choose only when both the numbers and the commitment suit your household. If your contract is ending soon, note the renewal deadline and arrange the next plan’s start date before accepting an offer.

If an unavoidable expense still leaves a temporary gap after you have reviewed your budget, you can apply for a personal loan with Crawfort and check your result in the app. Borrow only what you can comfortably repay from your regular income.

Important note: This article is for general information only and does not consider your personal financial situation. Before taking a loan or agreeing to a restructuring plan, review the contract carefully and make sure the repayments are manageable.

Frequently Asked Questions

No. It fixes the contracted electricity unit rate for the agreed period. Your electricity usage can still change, and water, gas and other charges are separate.

Use a typical estimate and a higher usage scenario. Relying only on your cheapest month can understate the commitment, while a single unusual peak may overstate your normal spending.

Compare their costs over the same initial period, then consider the remaining commitment. A 12-month plan leaves the second year’s rate unknown, while a 24-month fixed price plan commits you for longer. Include possible exit costs if your circumstances may change.

No. A rebate can reduce the amount you pay without changing your kWh usage. Track both figures so that a promotional credit does not hide rising consumption.

Only as a clearly labelled reference or scenario. As of 29 September 2026, the Q4 tariff had not yet been published. For an actual decision, confirm SP Group’s official rate and its effective dates before comparing it with a retailer’s quote.

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