
Open Electricity Market (OEM): Which Electricity Retailer Is The Cheapest in Singapore?
Electricity Tariff in Singapore (Jan to Mar Update 2021)
Electricity tariff will be decreasing from 21.43 cents to 20.76 cents per kilowatt-hour (kWh), falling by about 3.2% as compared to the October to December quarter.
Or 22.21 cents per kWh if you want to factor in the 7% GST.
In simpler words, it means that if you live in a 4-room HDB flat.
You can expect your average monthly bill to reduce by $2.39, without GST.
Which is great news to us all…
We’re pretty sure that the Open Electricity Market (OEM) will be adjusting their prices accordingly as well, which means CHEAPER ELECTRICITY BILL!
(fingers crossed)
If you’re wondering, “What is OEM?”
Just know that it means that you can switch to an electricity retailer and save money on your electricity bill.
Interested?
Find out who is the cheapest electricity retailer and how to make the switch!
TL;DR: Which Is the Cheapest Open Electricity Market (OEM) Plan in Singapore?
Cheapest Fixed Price Plan
Contract Length For Fixed Price Plan | Who provides the cheapest plan? |
---|---|
No Contract | PacificLight |
6 Months | iSwitch (Close contenders: Tuas Power and Geneco) |
1 Year | Sunseap |
2 Years | Union Power, Sunseap |
3 Years | iSwitch |
Cheapest Discount Off Regulated Tariff Plan
Contract Length For Discount Off Tariff Plan | Who provides the cheapest plan? |
---|---|
6 Months | iSwitch |
1 Year | Tuas Power (Close contenders: PacificLight, Sembcorp Power) |
2 Years | PacificLight, Sembcorp Power, Senoko Energy, Sunseap, Tuas Power, Union Power |
Cheapest Peak And Off-Peak Plan
Peak and Off-Peak Plan | Who provides the cheapest plan? |
---|---|
Cheapest Peak and Off-Peak Price | Peak: Sembcorp Power Off-Peak: Keppel Electric |
Discount Off Tariff | PacificLight |
Too many options?
Want to switch but don’t know which?
Why not use our FREE Open Electricity Market Comparison Tool?
All it takes is a couple of clicks and you’ll be able to find out how much you can save!
Find Me The Best Electricity Plan Now!
If you’re satisfied with your choice, you can even apply for the plan immediately!
Why Did You Guys Spend So Much Time Comparing The OEM Retailers?
Well… if there’s one thing which Singaporeans care deeply about.
It’s saving money.
Especially when it comes to utilities like electricity.
In fact, when we first wrote this article and did a comparison between the Open Electricity Market (OEM) electricity retailers, even the Straits Times picked it up.
#weirdflexbutokay
We then figured that a comparison tool might be easier to find the best open electricity market plan for the Seedly Community and decided to build that.
Totally NOT out of selfish reasons, of course.
It’s not like we used it to find out how to lower our electricity bill and then thought that maybe everyone else can benefit too…
Editor’s note: (rolls eyes)
What Is the Open Electricity Market (OEM)?
In October 2017, the Electricity Market Authority (EMA) first announced the Open Electricity Market (OEM) initiative in a bid to liberalise and encourage innovation in the power industry.
Fast forward to May 2019, all households in Singapore can choose to switch from SP Group to their preferred electricity provider.
So… Who Are the Electricity Retailers in the OEM?
There are 12 electricity retailers in Singapore:
- Best Electricity Supply Pte Ltd
- Diamond Energy Merchants Pte Ltd
- Geneco (by Seraya Energy Pte Ltd)
- iSwitch Pte Ltd
- Keppel Electric Pte Ltd
- Ohm Energy Pte Ltd
- PacificLight Energy Pte Ltd
- Sembcorp Power Pte Ltd
- Senoko Energy Supply Pte Ltd
- Sunseap Energy Pte Ltd
- Tuas Power Supply Pte Ltd
- Union Power Pte Ltd
What Types of Electricity Price Plans Do They Offer?
Ah…
Now you’re asking the right questions.
Most OEM retailers offer a selection of 3 different price plans.
Fixed Price Plan
This is similar to SP Group’s electricity plan.
You sign a contract with them and pay a fixed rate for whatever amount of power used.
For obvious reasons, all of the electricity retailers are offering fixed prices plans which are competitively priced (read: lower than SP).
Discount Off Regulated Tariff (DORT) Plan
The price you pay is pegged to the regulated tariff announced by EMA, albeit at a discount.
Because SP Group’s price plan is always determined by EMA’s regulated tariff.
This means that you’ll always be paying less than what SP Group would charge you if you’re on a DORT plan.
Non-Standard Plan
These include peak and off-peak packages where the electricity retailer charges higher prices during peak hours and lower prices during off-peak.
Ideal if you are usually awake during off-peak hours (read: are a night-owl).
How To Choose The Cheapest Open Electricity Market (OEM) Plan
Step 1: Use the Seedly Open Electricity Market Comparison Tool
That’s it.
It’s that simple.
You can even read real user reviews, left by our friendly Seedly community, about the various retailers to help you make your decision.
That way, you can get more insights from like-minded Singaporeans with regard to:
- user experience
- customer service
- billing issues (if any)
- pro and cons of the retailer
The tool also gives lets you know if there are any credit card deals and promotions which you can use to save even more!
Once you’ve got an idea of which plan you want, head on over to the retailer’s website and download the respective plan’s factsheet to READ THE FINE PRINT.
Pro tip: the Discount Off Regulated Tariff Plan seems to be the most popular amongst the Seedly Community.
Which Electricity Retailer’s Fixed Price Plan Is The Cheapest?
With 12 retailers, choosing one can be quite a chore, but we are here to help by comparing all the plans they have for households.
In general, we noted that Fixed Price Plans are cheaper than what you would pay for if you’re paying SP based on the current electricity tariff.
Company | Fixed Rate Plan | |||
---|---|---|---|---|
6 Months | 1 Year Contract | 2 Years Contract | 3 Years Contract | |
Best Electricity | $0.1673/kWh No Contract: $10.70 per month + $0.1736/kWh | $0.1695/kWh | $0.1798/kWh | - |
Diamond Electric | $0.1698/kWh | - | - | - |
Geneco | $0.1672/kWh | $0.1745/kWh | $0.1766/kWh | $0.1889/kWh |
Keppel Electric | - | $0.1745/kWh | $0.1769/kWh | - |
iSwitch | $0.1670/kWh No Contract: $0.1787/kWh | $0.1744/kWh | $0.1776/kWh | $0.1787/kWh |
Ohm Energy | $0.1790/kWh No Contract: $10.70 per month + $0.1734/kWh | $0.1899/kWh | $0.1930/kWh | - |
PacificLight | N/A No Contract: $0.1686/kWh (+$0.33/day daily charge) | $0.1745/kWh | $0.1798/kWh Tiered plan: <300kWh: $0.1899/kWh, 301 to 600kWh: $0.1763/kWh, >600kWh: $0.1698/kWh | $0.1889/kWh |
Sembcorp Power | $0.1675/kWh No Contract: $0.1745/kWh | $0.1699/kWh | $0.1763/kWh | - |
Senoko Energy | - | $0.1699/kWh | $0.1763/kWh | - |
Sunseap | $0.1672/kWh | $0.1688/kWh | $0.1760/kWh | - |
Tuas Power | $0.1671/kWh | $0.1699/kWh (Care Promotion) $0.1798/kWh (18 Months) | $0.1763/kWh (Care Promotion) Otherwise $0.1798/kWh | $0.1798/kWh |
Union Power | $0.1675/kWh | $0.1690/kWh | $0.1760/kWh | - |
(Note: Prices inclusive of GST)
- Best Electricity, iSwitch, Ohm Energy, PacificLight and Sembcorp Power provide No Contract plans at $0.1736/kWh, $0.1787/kWh, $0.1734/kWh, $0.1686/kWh and $0.1745/kWh respectively (additional charges by some retailers not included).
- iSwitch has the cheapest 6-month plan at $0.1670/kWh
- Tuas Power and Geneco come extremely close to the cheapest 6-month plan at $0.1671/kWh and $0.1672/kWh respectively.
- Sunseap the cheapest when it comes to 1-year plan at $0.1688/kWh
- Union Power and Sunseap the most economical when it comes to 2-years plan at $0.1760/kWh
- iSwitch is the cheapest for 3 years contract at $0.1787/kWh
Which Electricity Retailer’s Discount Off The Regulated Tariff Plan Is The Cheapest?
If you’d like to take a bet on the electricity tariff, then the Discount Off The Regulated Tariff (DORT) plan might be more your thing.
DORT plans charges you by taking a percentage off the cost from the EMA stipulated electricity tariff for the quarter.
Company | Discount Off Tariff Plan | ||
---|---|---|---|
6 Months | 1 Year Contract | 2 Years Contract | |
Best Electricity | - | 21% off | 22% off Receive up to 17% cash rebates for 2 years of electricity spend |
Diamond Electric | 18% off no lock-in period, +1% from 4th and 8th month | 20% off | - |
Geneco | - | - | 23% off |
Keppel Electric | 3 months: 19% off | - | 23% off |
Ohm Energy | 22% off | 22% off | - |
PacificLight | - | 25.1% off | 23.6% off |
Sembcorp Power | - | 25.1% off | 23.6% off |
Senoko Energy | - | 25% off | 23.6% off |
Sunseap | 23% off | 23% off | 23.6% off |
iSwitch | 25.1% off | 18% off | - |
Tuas Power | 18% off | 25.11% off | 23.6% off (Care Promotion) |
Union Power | - | 25% off | 23.6% off |
- For short-term 6 months contract, iSwitch is the cheapest with 25.1% off
- Tuas Power is the cheapest for the 1-year contract with a 25.11% discount off tariff plan
- PacificLight and Sembcorp Power both come as a close second for the 1-year contract with a 25.1% discount off tariff plan
- For the 2-year contract, PacificLight, Senoko Energy, Tuas Power, Union Power, Sunseap and Sembcorp Power provide the best deal at 23.6% off
Which Electricity Retailer’s Peak And Off-Peak Plan Is The Cheapest?
For most retailers, off-peak period is defined as 11pm to 7am.
So if you’re a night owl or do most of your work in the wee hours of the night, then the Peak And Off-Peak Plan might be better for you.
Not many retailers offer this as consumers would have to get an extra meter installed to monitor electrical activity.
Company | Peak and off-peak plans | |
---|---|---|
Peak | Off Peak |
|
PacificLight | 10% off tariff (7am to 11pm) | 35% off tariff (11pm to 7am) |
Keppel Electric | $0.2087/kWh (7am to 11pm) | $0.1669/kWh (11pm to 7am) |
Sembcorp Power | $0.1950/kWh (7am - 7pm) | $0.1865/kWh (7pm - 7am) |
Geneco | Does not offer Peak and off-peak plans | |
Tuas Power | Does not offer Peak and off-peak plans | |
iSwitch | Does not offer Peak and off-peak plans | |
Best Electricity | Does not offer Peak and off-peak plans | |
Senoko Energy | Does not offer Peak and off-peak plans | |
Ohm Energy | Does not offer Peak and off-peak plans | |
Sunseap | Does not offer Peak and off-peak plans | |
Union Power | Does not offer Peak and off-peak plans | |
Diamond Electric | Does not offer Peak and off-peak plans |
(Note: Prices inclusive of GST)
- PacificLight offers a discount off tariff for peak and off-peak plan
- Sembcorp Power is the cheapest for peak rates
- Should a consumer chooses to go with Peak and Off-peak plan, they may need to install a smart meter to track their electricity consumption every half an hour
- The meter installation fee costs $40 (before GST)
Average Electricity Consumption and Electricity Bill of Singaporeans
If you’d like to know how much you can potentially save if you switched to an OEM retailer, let’s have a look at how much Singaporeans spend on electricity per month, on average.
Using the current Q1 2021 (1 Jan 2021 to 30 March 2021) electricity tariff rate: 22.21 cents per kWh (including GST).
Property Type | Average Electricity Consumption Per Month (kWh) (as of March 2020) | Average Cost of Electricity Per Month (incl. GST) |
---|---|---|
HDB 1-Room | 136.36 | $28.31 |
HDB 2-Room | 182.95 | $37.98 |
HDB 3-Room | 261.41 | $54.27 |
HDB 4-Room | 355.80 | $73.86 |
HDB 5-Room | 412.01 | $85.53 |
HDB Executive | 501 | $104.01 |
Apartment | 519.63 | $107.88 |
Terrace | 793.93 | $164.82 |
Semi-Detached | 1,092.02 | $226.70 |
Bungalow | 2,258.72 | $468.91 |
How Much Do Singaporeans Spend on Electricity Every Month?
Singaporeans are subjected to Electricity Tariff, which is regulated by the Energy Market Authority (EMA).
For Q4 2020, the electricity tariff is 20.76 cents per kWh (excluding GST).
The Electricity Tariff is made up of 4 main components:
Electricity Tariff Components | Price | How Often Is It Reviewed? |
---|---|---|
Market Administration and Power System Operation Fee (Paid to Energy Company and Power System Operator) | 0.06 cents/kWh | Annually |
Market Support Services Fee (MSS) | 0.40 cents/kWh | Annually |
Network Cost | 5.44 cents/kWh | Annually |
Energy Costs | 14.86cents/kWh | Quarterly |
The sum of the 4 components makes up your Electricity Tariff, which will be what the consumer pays for their monthly electricity bill.
Some Commonly Asked Questions About The OEM
1. Why Are Electricity Retailers Able Charge Lower For Electricity Than SP Group?
You’re probably going, “WALAO, has SP Group been overcharging me ALL THESE YEARS?!”
Not exactly.
The regulated tariff takes into account the cost of producing and delivering electricity which includes the cost of building and operating power plants as well as maintaining the power grid.
The rates offered by retailers, on the other hand, reflect current market conditions and the short-term costs of producing electricity.
If the current market conditions see excess in supply as compared to demand, the price of electricity will naturally be lower.
These retailers can then go into the wholesale market and buy electricity in bulk from power generation companies.
Of course, these prices offered by retailers are only fixed during your contract. So they can adjust their prices and discounts over time. But fret not, you can always switch back to buying electricity at the regulated tariff from SP Group at any time – after you complete your contract of course; unless you wish to pay the early termination fee…
2. When Can I Start Applying?
As of today, you can switch to an Open Electricity Market retailer anytime.
But as with anything that has to do with money, take the time to understand the OEM before you switch.
The retailers might be throwing promo codes around like Oprah Winfrey and shouting out how they’re the cheapest in town.

But you really should take the time to understand the other stuff which electricity retailers don’t usually talk about like:
- Administrative fee
- AMI meter installation fee
- Auto-renewal of contract clause
- Carbon tax
- Early termination charges
- Late payment fee
- Paper bill
- Security deposit
- Transmission loss factor
- U-Save GST Voucher
Read more: Hidden Fees And T&Cs To Take Note When Choosing An Electricity Retailer
3. What Is Transmission Loss Factors (TLF)?
To put it simply, it’s a scaling factor that has been applied at the metering point to account for network and transformer loss.
Think of it this way: To get you one unit of electricity, the retailer needs to send two units of electricity to account for the possible loss of one unit of electricity when electricity travels across such a vast distance from the power plant to your home. That’s the TLF that they need to factor in when charging you.
Most of us fall under the 230kv/400kV load.

SP Group should have already adjusted this to reflect the actual consumer use, so retailers will adhere to SP Group’s recommended TLF and bill you accordingly.
Wanna Switch But Don’t Know Which?
With so many options in the market, it’s hard to decide which to switch to.
Why not give the Seedly Open Electricity Market Comparison Tool a whirl and see how much you can shave off your electricity plan?
It’s free to use anyways!
