Green Electricity Plans in Singapore: What You're Actually Paying For

What a REC actually is

Renewable Energy Certificates (RECs) are the mechanism behind every green plan on this site. One REC certifies that 1 megawatt-hour (1,000 kWh) of electricity was generated from a renewable source — solar, wind, or similar — and delivered to the grid. In Singapore, RECs are issued and overseen by the Energy Market Authority under Singapore Standard SS 673, which sets the verification rules for how RECs are produced, tracked, and retired.

Why RECs exist: the grid is blended

Once electricity enters Singapore's power grid, it mixes with every other source feeding into it — there's no physical way to route "green electrons" specifically to your home, any more than there's a way to route specific electrons from the SP tariff to a different household. RECs solve this with an accounting mechanism instead: a retailer buys and permanently retires RECs equal to your actual consumption, which certifies that somewhere on the grid, an equivalent amount of renewable generation happened on your behalf. It's the same mechanism large corporations use to meet sustainability commitments — retailers are simply offering it bundled into a household plan.

How each retailer's green plan implements this

Senoko Energy's LifeGreen24 retires RECs matching your actual household consumption under Senoko's Take Charge Programme, and sends you a report each August detailing the RECs retired on your behalf.

Keppel Electric's ecoGreen24 (launched February 2022) retires Singapore RECs annually based on the carbon emissions associated with your household's consumption, which Keppel markets as making your electricity carbon-neutral — its own materials are explicit that this is a REC-based claim, not solar power delivered to your home.

Tuas Power's PowerFIX 25 G+ ties its REC purchases partly to Tuas Power's own renewable generation on Jurong Island, as part of its support for Singapore's Green Plan targets.

All three are the same underlying mechanism with different sourcing and reporting details — none of them require any change to your home, wiring, or meter.

What the premium does and doesn't mean

It doesn't mean solar panels on your roof, a different physical electricity supply, or a discount for using less power at certain times — that's a separate category of plan covered in our smart meter guide. It does mean the retailer has made a verifiable, EMA-standard-backed commitment to retire renewable generation certificates matching your usage. Whether that's worth the premium is a personal call — it's a legitimate market mechanism, not a marketing trick, but it's also not equivalent to actually reducing Singapore's total electricity demand or your own energy consumption.

The size of that premium varies a lot by retailer — see our breakdowns of Senoko Energy's plans, Keppel Electric's plans, and Tuas Power's plans for exactly how much more each green plan costs against the same retailer's standard fixed rate right now.

Sources

• EMA — Singapore Standard for Renewable Energy Certificates
• Senoko Energy — LifeGreen24
• Keppel — Keppel Electric Launches Green Electricity Plan
• Tuas Power — PowerFIX 25 G+