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1. Who are contestable consumers?

“Contestable consumers” are eligible consumers who have switched to buy electricity from an electricity retailer or from the wholesale electricity market, instead of remaining as a non-contestable consumer and buy electricity from SP Services Limited (SPS) at the regulated tariff.

2. How can I find out my contestability status?

You can find out whether you qualify via Open Electricity Market website ( or by contacting SPS at 1800-233-8000 or for assistance.

3. What is the role of the Market Support Services Licensee (MSSL)?

SPS, as the MSSL, provides services such as retail settlement, meter reading, meter data management and facilitate customer transfers between retailers. The MSSL also supplies electricity to non-contestable consumers at the regulated tariff and facilitates access to the wholesale electricity market for contestable consumers who have not appointed an electricity retailer.

4. Who are the licensed electricity retailers?

A list of the licensed electricity retailers can be found here.

5. Who are Direct Market Consumers (DMC)?

DMC are contestable consumers who have chosen to buy electricity directly from the wholesale electricity market. To be a DMC, the consumer will need to register with the Energy Market Company (EMC) and satisfy certain financial, technical and operational requirements. DMCs can only buy electricity for their own consumption and are not allowed to resell the electricity to other consumers.

6. How do I apply to become a Direct Market Consumer (DMC)?

You have to register with the EMC to be a DMC. For more information on the conditions that you must satisfy in order to register as a DMC, you may wish to refer to the EMC’s website or contact them at:

Tel: +65 6779 3000
Fax: +65 6779 3030

7. What is the difference between buying electricity from an electricity retailer, the wholesale electricity market and at the regulated tariff?

  • Electricity retailers can provide packages with different price plans and services to suit differing usage patterns. If you decide to buy electricity from them, you will be billed directly by your retailer based on the commercially agreed electricity price.
  • If you buy electricity from the wholesale electricity market, your electricity charges will be based on prices that vary every half-hour depending on the prevailing demand and supply situation. You can buy from the wholesale electricity market (a) through SPS or (b) by registering with the EMC as a DMC.
  • The option of buying electricity as a DMC is typically for very large consumers, as they need to meet certain financial, technical and operational requirements. Under this option, you will be billed by the EMC on a daily basis. For more information on buying electricity directly from the wholesale electricity market, please visit the EMC's website here.
  • It is not compulsory for you to switch to become a contestable consumer. No action is required from you if you choose to stay as a non-contestable consumer and continue to buy electricity from SPS at the regulated tariff.

8. What are the pricing terminologies in the National Electricity Market of Singapore?

Explanation on the pricing terminologies in the National Electricity Market of Singapore can be found on the EMC’s website here.

9. Why is the government liberalising the electricity market?

The government has progressively liberalised the retail electricity market to promote the efficient supply of competitively priced electricity, with plans to open up the market eventually to full competition. The introduction of competition among the retailers has benefitted contestable consumers with improved services, greater efficiency, competitive prices and innovative products.

10. Does liberalisation mean that electricity prices will come down?

The liberalisation of the retail electricity market is intended to give eligible consumers more options to manage their energy cost. While retail market liberalisation does not necessarily mean that prices will come down, competition among the retailers will encourage competitive pricing and product innovation for the benefit of consumers.

As market prices for electricity depend on the supply and demand situation, there will be up cycles and down cycles. The price of electricity to different consumers may also differ depending on their individual consumption needs. For instance, some consumers may be prepared to pay a premium for a firm electricity price i.e. fixed price retail contracts versus fuel price indexed retail contracts.

The Energy Market Authority (EMA) does not price-regulate the retailers. The “Code of Conduct for Retail Electricity Licensees” sets out the minimum standards of performance that all retailers must comply with.

11. Are there plans to fully liberalise the market?

EMA is working towards empowering the remaining 1.3 million small consumers, mainly households, to choose whether to remain on the regulated tariff or switch to buy electricity from retailers at market prices. This initiative is known as Open Electricity Market (previously referred to as Full Retail Competition).

12. Where can I get more information on the Singapore Electricity Market?

You can download a copy of “Introduction to the National Electricity Market of Singapore” here.

13. For how long a period will I be able to view my historical usage on e-services portal?

You can view your half-hourly usage over the last 3 months, and your historical weekly, monthly and yearly electricity usage over the last 2 years.