EMA, in one paragraph
The Energy Market Authority of Singapore (EMA) is a statutory board under the Ministry of Trade and Industry, established in 2001. It is Singapore's energy regulator — covering electricity, town gas and district cooling — and is responsible for ensuring a reliable, competitive and sustainable energy supply. EMA also acts as the system operator and market operator for Singapore's electricity grid.
For an electrical project, EMA's relevance is direct and unavoidable: they license the people who operate electrical installations, they set the technical regulations those installations must comply with, and they investigate incidents.
EMA's three roles, in plain terms
1. Regulator
EMA writes and enforces the rules — the Electricity Act, the Gas Act, the Electricity (Electrical Installations) Regulations and a host of technical codes. These rules govern everything from how a power station connects to the grid down to how a Building Licence holder maintains a switchboard.
2. System Operator
EMA dispatches generators, manages reserves, and keeps Singapore's grid frequency and voltage stable second-by-second. This role is invisible to most projects, but it is the reason your power doesn't blink when a generator trips.
3. Industry Developer
EMA promotes new energy technologies in Singapore — solar PV, energy storage, electric vehicle charging, hydrogen — and incentivises adoption through grants, regulatory sandboxes and code updates.
Licences EMA issues
- Licensed Electrical Worker (LEW) — personal licence held by individuals who operate, switch and inspect electrical installations. Several classes by voltage. (See What is a LEW?)
- Building Licence — issued to owners of electrical installations that exceed prescribed capacity thresholds. The licence requires a named LEW to be attached.
- Electrical Installation Licence — a separate category covering specific installation types.
- Electricity Generation Licence — for any generator above prescribed capacity (relevant for solar PV systems above the threshold).
- Retail and Wholesale Market Participant Licences — for electricity retailers and traders.
- Gas Licences — separate framework for town gas service.
Where EMA touches your installation
If you are running an electrical project in Singapore, EMA's footprint typically shows up at the following points:
- Design stage. Your design must comply with the Electricity Act, SS 638 (Code of Practice for Electrical Installations) and other EMA-referenced technical codes.
- Submission stage. For regulated installations, an application is made with the relevant authorities including EMA touch-points and SP PowerGrid (the licensed transmission and distribution operator under EMA oversight).
- Energisation stage. First energisation typically involves the LEW with EMA-issued credentials. For HT intakes, SP PowerGrid manages the cut-over.
- Operations stage. The Building Licence and its named LEW are EMA's standing presence on your installation — annual reporting, periodic inspections, incident reporting.
- Incident stage. Any reportable electrical incident is reported to EMA, who may investigate, summon parties involved, and impose remedial requirements.
Key regulations to know
- Electricity Act — the parent legislation.
- Electricity (Electrical Installations) Regulations — the operative regulations for electrical installations.
- Electricity (Licensed Electrical Workers) Regulations — governs LEW licensing, classes, scope of work.
- SS 638 — Code of Practice for Electrical Installations (referenced under the Regulations).
- SS 551 — Earthing.
- SS 555 — Lightning Protection.
Frequently asked questions
Do I need to deal with EMA directly?
For most projects, no — your LEW and PE handle the regulatory interface. EMA shows up directly during licensing, renewals and incidents. Most owners never speak to EMA directly through the life of their building.
What's the difference between EMA, SCDF and BCA?
EMA regulates electricity. SCDF regulates fire safety (which includes some electrical aspects like emergency lighting and fire pumps). BCA regulates building works (including the Building Control Act QP roles). A typical project deals with all three, with different submissions and different QPs.
Does the EMA inspect installations?
EMA conducts periodic and incident-driven inspections of licensed installations. Routine compliance is monitored through the Building Licence regime, which requires the named LEW to inspect at prescribed intervals and report.