Cheapest Electricity Plans in Singapore (September 2026): Keppel Publishes Rates Again and Turns 29.40¢/kWh Into a Four-Way Tie

Still the widest plan menu in the market, and now the steadiest. PacificLight repriced on 20 August and has not touched a rate or a promo code since; every plan on its own price-plan JSON on 5 September matches what we published a fortnight ago. Savvy Saver 36 is 29.40¢/kWh, which since Keppel republished its rate card is a four-way tie rather than a three-way one. Savvy Saver 24 is 29.80¢, level with Senoko LifePower24, Tuas PowerFIX 24, Geneco Get It Fixed 24 and Keppel FIXED24. Savvy Saver 12 is 31.00¢ and Sunny Side-Up 12, the green plan, is 31.50¢. Save While Sleeping 24 is 34.50¢ during the day (7am to 11pm) and 22.50¢ overnight (11pm to 7am). Stack It Up 24 is volume-banded rather than time-of-use, charging 30.00¢ on the first 300 kWh, 29.40¢ from 301 to 600 kWh and 28.00¢ above that. The trap on this menu is unchanged and still the most useful thing to know about PacificLight. Easy Peasy is 26.00¢/kWh with no contract, which is the lowest published rate in Singapore, but the fact sheet adds a daily charge of 55¢, roughly $16.70 a month, so on 400 kWh a month the effective rate is 30.19¢. That is more than the 29.40¢ tie, so Easy Peasy only wins above about 490 kWh a month. Easy Save is 18% off tariff (about 28.52¢) plus the same 55¢ a day, and 9 To 9 is 38.00¢ from 9am to 9pm, 18.50¢ from 9pm to 9am, plus $1.01 a day. Classic 60 is 3% off the tariff with a further 5% prompt-payment discount, so the advertised 8% only holds if you never pay late. On promos, ATE 2026 runs to 30 September and pays $200 with ATE24, $250 with ATE36 or $380 with ATE60, each limited to the first 100 sign-ups, with $20 more for a referral code, which is where the advertised up to $400 comes from. Maybank cardholders get $200 with MBBON200 on 36 months, $140 with MBBON140 on 24, or $10 with MBBON12 on 12, first 40 per code, to 30 September; renewing customers who set up Maybank recurring payment and register get $20. yuu members get 15,000 points and $50 with YUU36 or 10,000 points and $50 with YUU24, first 500, to 26 October, and every yuu-code sign-up before 27 October is entered in a draw for two prizes of 100,000 points. KrisFlyer collectors can use KFLYER36. Existing customers who set up recurring payment with a UOB card get $20. Referrals pay $30 to you and $20 to your friend. Easy Peasy and Easy Save accept no promo or referral codes at all. BEST FOR: high-usage households, who should take Easy Peasy above roughly 490 kWh a month, and anyone who wants the biggest cash rebate on a 29.40¢ long contract, since ATE36 pays $250 where Tuas now pays $160 and Keppel pays $100.

The rate-plus-freebie play, and this time the freebie half got a genuine upgrade. Senoko has not moved a rate since the early-August rise: on 5 September its own price-plan page still shows LifePower36 at 29.40¢/kWh, LifePower24 at 29.80¢ and LifePower12 at 31.00¢, with LifeGreen24 at 30.18¢, LifeSteady24 and LifeSteady36 at 1.64¢ off the tariff (about 33.14¢ today) and LifeSavvy24 at 20.05¢ off-peak from 11pm to 7am against 36.95¢ the rest of the day. LifeSavvy24 is still the cheapest overnight rate in this roundup that comes with no daily charge attached, which matters if you run laundry, dishwashing or EV charging after midnight. The gift board is where everything changed. The $339 PRISM+ PureFresh 50L mini fridge we named as the best gift left on 26 August is now FULLY REDEEMED, joining the $408 Ninja Foodi AirGrill, the $359 Xiaomi Robot Vacuum, the $320 Samsonite Red spinner and the $339 TTRacing standing desk. Five of Senoko's gifts have now sold out inside six weeks, which tells you how fast you have to move once one is listed. Two new ones have appeared to replace them, and the headline is much bigger than anything it has run this quarter: a 2-piece Samsonite Oc2lite spinner luggage set, 55cm and 68cm, worth $680, plus a $30 bill rebate, on any 36-month plan with recurring payment set up on a Trust card, code TBBCSB30, limited to the first 600 sign-ups or renewals. Stack a referral code on top as a new customer and the package Senoko advertises is worth up to $730, which is comfortably the largest sign-up value on any 29.40¢ contract right now. The second new gift is a TTRacing Duo V4 gaming chair worth $259 on a 24-month plan, code GIROBCRC, first 400. The rest of the gift menu still runs on GIRO: a $218 SMEG KLF05 kettle (GIROFCSKB, 36-month, first 260), a $208 Shark S1000 steam mop (GIROFBSSM, 24-month), a $199 Doobsta' bean bag (GIROFCDBG) and a $149 La Gourmet multi-cooker (GIROFCLC). If you would rather have cash, Maybank cardholders now get up to $200 rather than the $150 we reported, using MBFC180 on 36 months, MBFC130 on 24 or MBFC20 on 12. Tiger BOSS debit cards pay up to $170 (TGBGN150, TGBGN130), GIRO alone pays up to $170 (GIROFB150, GIROFB100, GIROFB30), Novowatt customers get up to $220 as $120 in rebates plus $100 of EV charging credit (NVX200), and if you cannot set up recurring payment at all there is still up to $80 (FB60, FB10). Referrals pay $20 each way. Every gift is redeemed after your third bill, so this is a slow reward, not an instant one. BEST FOR: anyone signing a 36-month contract at 29.40¢ who would rather have $680 of luggage than $250 in cash, and overnight-heavy households, who should compare LifeSavvy24 against PacificLight's 9 To 9 before deciding.

The steadiest rate card here, attached to the promo page that just got worse. Tuas raised its rates in the first week of August and has not touched one since: on 5 September, PowerFIX 36 is 29.40¢/kWh, PowerFIX 24 is 29.80¢, PowerFIX 12 is 31.00¢, the green PowerFIX 25 G+ is 32.70¢ and PowerDOT 6 is 10% off the tariff, about 31.30¢ today. There is no daily charge on any Tuas plan, which is worth saying out loud when PacificLight's cheapest headline rate carries one. Every plan also includes 12 months of free Singlife cover, and you pick Home, Travel or Personal Accident. The promo side has been rebuilt for September and the headline number went backwards. ONSGDAY26, which paid $200 as a bill rebate or grocery e-voucher on PowerFIX 36 and $120 on PowerFIX 24, expired on 31 August. The replacement is ONLINE, which runs from 1 September to 11 October, and its T&C PDF is explicit about what you get and how many can get it: $160 on PowerFIX 36 and $100 on PowerFIX 24, new residential customers only, and only the first 500 who successfully transfer. That is $40 less than August on the long contract and $20 less on the 24-month, and it puts Tuas third for cash behind PacificLight's ATE36 at $250 and Geneco's September codes. Read the fine print on the rate too: the rebate lands on your second or third bill depending on your SP billing cycle, and changing your plan or code within three days of the transfer costs a $10.90 administration fee. ONGREEN still pays $100 on the green PowerFIX 25 G+ and now runs to 11 October rather than 31 August, and PRUOB, up to 4.33% cashback for UOB cardholders on SP utilities bills, has moved to the same date. The genuinely new offer is PRPL26, which gives a free StarHub Premier+ Annual Pass worth $380 to anyone signing the green PowerFIX 25 G+ by 30 September, limited to the first 180 sign-ups, with the redemption code emailed 14 days after your contract starts. That is 12 months of Premier League football on StarHub TV+ against a rate 3.30¢ above PowerFIX 36, which on 400 kWh a month costs about $158 a year in extra electricity, so it is worth taking only if you would otherwise have paid for the football. Referrals pay $20, though Tuas states the rebate is revised when a referral is combined with another promotion. The early-termination charge on PowerFIX 36 is a flat $200 with no GST, and contracts auto-renew below the prevailing tariff with 18 business days' notice. BEST FOR: anyone who wants a 29.40¢ contract with no daily charge, no gift to chase and no membership to hold, and Premier League watchers, who should price PRPL26 against a StarHub subscription rather than against the other electricity deals.

The rebate specialist, and still the retailer whose promotions page changes fastest. The rates did not move: on 5 September, Get It Fixed 24 is 29.80¢/kWh, Get It Fixed 12 and the six-month Give Us A Try are both 31.00¢, and Get It 7 To 7 is 27.90¢ from 7pm to 7am against 32.50¢ from 7am to 7pm. Everything else on this entry has changed. The three POWER codes we listed in August are gone. POWER200, POWER100 and POWER15 have been replaced by GENECO200, GENECO100 and GENECO15, and the terms have tightened in a way worth reading before you assume you qualify. GENECO200 pays $200 on Get It Fixed 24 for the whole of September, but its own T&C PDF requires you to be an SP Group customer with an existing electricity account before you switch, so anyone moving between open-market retailers gets GENECO100 and $100 instead. GENECO15 pays $15 on Get It Fixed 12 and runs to 31 October. Existing customers renewing get RENEW30 on Get It Fixed 24 or Get It 7 To 7, or RENEW15 on Get It Fixed 12. Running on top of all that, and closing first, is a four-day online special: GENECO270 pays $270 on Get It Fixed 24, again SP customers only, from 3 to 6 September 2026 inclusive. Stack the $20 referral and up to $35 in card rebates and Geneco advertises the package as up to $325, which is the largest single sign-up rebate on any electricity plan in Singapore this week. It is on a 29.80¢ plan rather than a 29.40¢ one, so on 400 kWh a month you give up about $19 a year in rate to gain $70 more in cash than GENECO200 pays, which is worth it over a 24-month term but only if you sign before Saturday. Two offers we reported as back in late August have disappeared again: the Win 1 Year FREE Electricity draw worth $1,650 and the anniversary Power Eco offer of 8 months free are both off Geneco's live pages, along with the Jolly Savings $20 eCapitaVoucher. The sign-up cap has changed shape too. Get It Fixed 24 no longer says first 3,100 sign-ups on its plan card; it now reads limited sign-ups with no number, which is less useful, not more. One more thing worth knowing: Get It 7 To 7's own plan card states that promotion and referral codes are not applicable, so the cheapest off-peak rate here comes with no rebate at all. Card rebates still stack on the fixed plans, up to $35 with Maybank, up to $30 with Tiger BOSS, $20 with Citi and 3% cashback with OCBC 365. Geneco charges no monthly admin fee and no transmission loss charge, and it is the only retailer here that publishes a price-match guarantee. BEST FOR: SP Group customers who can sign before 6 September and want the biggest cash rebate available anywhere, and anyone who has never switched, since both of Geneco's better codes are closed to people already on an open-market retailer.

The retailer we could not price for a month is back, and it arrived at the top of the table. Through August, Keppel Electric's residential price-plan and promotions pages both rendered navigation, a heading and nothing else, so we listed it as unrankable and told readers to call. On 5 September both pages carry a full rate card again, and the numbers are competitive rather than a placeholder. FIXED36 is 29.40¢/kWh with GST (26.97¢ before GST) over 36 months, which is exactly level with PacificLight Savvy Saver 36, Senoko LifePower36 and Tuas PowerFIX 36, so the cheapest long contract in Singapore is now a four-way tie. FIXED24 is 29.80¢ (27.34¢ before GST), level with the other four 24-month plans. FIXED12 is 34.77¢, which is one hundredth of a cent below SP's regulated tariff and therefore not worth signing a year for. Two plans are more interesting than the fixed ones. SURESAVE DOT, the no-contract plan whose 15%-off description vanished from Keppel's site on 5 August, is back at 12% off the regulated tariff, guaranteed for 24 months with no lock-in and no early-termination charge. It carries two restrictions worth knowing: it is open only to customers switching directly from SP Group, and the contract must start on or after 1 October 2026, so it will track the Q4 tariff rather than today's 34.78¢. On the current tariff 12% off works out to about 30.61¢, which is below every discount-off-tariff plan any other retailer sells and about $200 a year cheaper than staying on SP, though still a shade above the 29.40¢ fixed contracts. The second is Weekend Saver, a 24-month time-of-use plan at 27.90¢/kWh all day every weekend and from 9pm to 9am on weekdays, against a steep 39.90¢ on weekdays from 9am to 9pm. Its off-peak window is the widest in this roundup, because it covers the whole weekend rather than only overnight, but the peak rate is the highest, so it only pays if the house is genuinely empty on weekday afternoons. It also needs a smart meter, and Keppel charges $43.60 with GST to install one if you do not have it. ecoGreen24, the renewable plan, is 38.80¢ and is dearer than doing nothing. On rebates, NEW125 pays a one-time $125 on FIXED24 and is limited to the first 1,000 new customers; NEW100 pays $100 on FIXED36 or on ecoGreen24, also capped at the first 1,000 on the green plan. Setting up recurring payment with a Maybank card adds $20 on a 24 or 36-month plan or $10 on 12 months, for the first 125 sign-ups or renewals, from 1 July to 30 September 2026, with the first Maybank transaction due by 30 November and the rebate paid by 31 December. GIRO adds $10 instead, and the form has to be printed and posted, which is the one genuinely dated step in this roundup. Note that a security deposit applies to all new Keppel sign-ups from 1 October 2025 onwards, and that none of these offers are open to recontracts or relocations. BEST FOR: anyone signing a 24-month plan, since $125 plus $20 is the best rebate on a 29.80¢ contract outside Geneco's SP-only codes, and households that are out all weekday afternoon and want a weekend-wide off-peak rate.

Not a deal, but the number every offer above quotes against, so it belongs on the list. If you have never switched, you are on SP Group's regulated tariff, which the Energy Market Authority reviews every quarter and publishes in advance. For 1 July to 30 September 2026 it is 34.78¢/kWh with GST, or 31.91¢/kWh before GST, and it has not moved through either round of retailer repricing in August. The next revision takes effect on 1 October 2026 and will be published shortly before. On a household using 400 kWh a month that tariff is a bill of $139.12, against $117.60 on any of the three 29.40¢ contracts, so staying put costs about $21.50 a month or $258 a year. The tariff has one genuine advantage that no retail plan matches: there is no contract, no lock-in, no sign-up cap, no promo code to remember and no early-termination charge, so you can leave at any time for nothing. That makes it the right answer in exactly two situations, when you are about to move or renovate and cannot say where you will be living in six months, and when the quarterly tariff has fallen far enough that the retail discounts stop being worth the commitment. Neither applies right now. It is also worth knowing what the tariff is not: it is not a subsidy and it is not indexed to your household, and your U-Save rebates are credited to your utilities account either way, so staying on SP buys you nothing on that front. BEST FOR: anyone whose living situation is about to change, and anyone who genuinely will not remember to check a promo code at checkout. Everyone else is paying roughly $258 a year for the privilege of not filling in a form.