The solar scene in Singapore
Quick Summary: The Price Pressure on Singapore Manufacturers
If you run a factory or SME manufacturing operation in Singapore, you already know your electricity bill has been creeping upward. As of early 2026, the regulated commercial tariff sits at approximately 29.72 cents per kWh before GST. The carbon tax rate rose to $25 per tonne in 2024–2025 and will climb to $45 per tonne in 2026–2027, with a trajectory toward $50–$80 per tonne by 2030. Singapore imports over 95% of its energy, and natural gas made up 93.1% of the electricity fuel mix in the first half of 2025 — global LNG price shocks hit us directly. Solar is one of the few levers a factory owner can pull to lock in a fixed, predictable energy cost for 25 years.
Why Factory Electricity Prices Are Going Up — And Will Keep Going Up
The Carbon Tax Effect
Singapore’s carbon tax directly affects power generation costs. Electricity tariffs are expected to rise by around 1% for every $5/tCO2e increase in the carbon tax level. Moving from $25 to $45 per tonne in 2026 means roughly a 4% tariff increase from that factor alone. By 2030, if the carbon tax reaches $50–$80, factories face a cumulative tariff increase of 10% or more from carbon pricing — before fuel cost swings are even factored in.
LNG Price Volatility and the Middle East Factor
Singapore’s electricity market was previously hit by the global energy crisis between 2021 and 2022, with large swings in wholesale electricity prices. The Energy Market Authority has cautioned that electricity prices could rise if global gas prices remain elevated amid Middle East tensions. About 42.5% of Singapore’s LNG imports in 2025 came from Qatar. Gas prices have surged as much as 50% in European and Asian markets after recent supply disruptions. Full impact will only be felt in later quarters.
What the Government Is Doing — And Not Doing
The government launched Singapore GasCo to aggregate gas demand and secure better long-term contracts. The Energy Efficiency Grant (EEG) supports local manufacturers in adopting energy-efficient technologies by co-funding equipment upgrades — up to S$30,000 with a grant cap ending 31 March 2027. However, the government has stated it has no current plans to introduce further incentives for solar deployment specifically, and electricity subsidies target HDB households, not factories.
How Solar Panels Actually Protect Factory Margins
Real Savings Figures
Solar is not a “green gesture” — it is a direct operating-cost hedge:
- A 50 kWp system can offset $1,000–$2,500 per month in electricity costs.
- A 100 kWp system could result in $3,000–$5,000 per month in savings, depending on operating hours and peak usage.
- For high-load factories, a properly sized solar panel system could slash electricity bills by 40%, saving $20,000 each month; over 5 years, that is $1.2 million in savings.
Payback Timeline for Factory Solar
| System Size | Typical Cost (SGD) | Monthly Savings Range | Payback Period |
|---|---|---|---|
| 50 kWp | $50,000–$70,000 | $1,000–$2,500 | 4–6 years |
| 100 kWp | $90,000–$140,000 | $3,000–$5,000 | 4–5 years |
| 200 kWp+ | $180,000–$280,000 | $6,000–$12,000+ | 3–5 years |
These figures assume daytime-heavy usage, which matches most factory profiles. Payback for large-scale installations can be as short as 4 to 6 years with internal rates of return (IRR) in the 10% to 16% range.
Expert Opinion
In my experience installing solar for factories across Singapore, the 3 shift manufacturing operation benefits the most — their consumption during daylight hours is nearly 100% of the solar output, meaning zero export and maximum bill offset. Even single-shift factories can achieve 5–7 year paybacks.
Comparing Solar Financing Options for Factories
| Option | Upfront Cost | Ownership | Best For |
|---|---|---|---|
| Direct Purchase | Full capital outlay | Factory owns system | Cash-rich SMEs wanting maximum ROI |
| Power Purchase Agreement (PPA) | Zero capital expenditure | Third party owns panels | Factories wanting immediate savings without investment |
| Solar Lease / Rent-to-Own | Low upfront with monthly payments | Ownership transfers after lease term | SMEs wanting eventual ownership |
| EEG Grant + Direct Purchase | Co-funded up to S$30,000 | Factory owns system | Eligible manufacturers under EEG Base scheme |
What Factory Owners Ask
Will solar panels cover our full factory electricity bill?
Most medium to large factories in Singapore need a 100–200+ kWp system to cover a meaningful portion of their load. A 100 kWp system can reduce bills by 30–50% depending on consumption patterns. Full coverage is possible if your factory operates only during daylight and your roof is large enough.
Do government grants actually apply to factory solar?
The Energy Efficiency Grant (EEG) administered by NEA supports equipment that improves energy efficiency. Solar PV systems may qualify depending on the specific scope. The Resource Efficiency Grant for Emissions is another avenue. Check with EnterpriseSG for the latest. The EnterpriseSG website has details.
What happens when the carbon tax hits $80 per tonne?
At $80, the embedded carbon cost per kWh roughly doubles from the 2026 rate. Every $5/tCO2e increase raises tariffs about 1%. At $80, that is a cumulative 12% tariff increase from carbon pricing on top of fuel cost movements. Solar at a fixed cost hedges precisely against this. See latest carbon tax projections on Straits Times.
Actioning Factory Solar: Step-by-Step
- Energy audit. Map your consumption profile — if you use the most electricity between 9am and 5pm, solar payback is fastest.
- Roof assessment. Check structural load capacity and shading. Most factory roofs in Singapore are large, flat concrete slabs — ideal for solar.
- Grant application. Check EEG eligibility and grant cap (up to S$30,000). GoBusiness lists supportable equipment.
- System sizing. Match solar capacity to your midday load to maximise self-consumption and minimise export.
- Choose installer. Look for EMA-licensed contractors with factory solar experience — not just residential installers.
- Install and commission. Licensed Electrical Worker (LEW) sign-off required for grid connection.
For a factory-specific solar assessment and ROI calculation, reach Akando Solar today. We walk you through the numbers in hard dollar terms.
References:
- Written Reply to PQ on Measures to Mitigate High Electricity Prices (MTI), 2025. https://www.mti.gov.sg/
- Global Energy Price Shock: Impact on Singapore (ASEAN Briefing), 2026. https://www.aseanbriefing.com/
- Is Your Business Paying Too Much? Benchmarking Electricity Bills (Flo Energy), 2026. https://floenergy.sg/
- Energy Efficiency Grant FAQ (EnterpriseSG), 2025. https://cp.enterprisesg.gov.sg/
- Commercial Solar Financing Options in Singapore (1st Solution), 2025. https://www.firstsolution.com.sg/
- How Solar Panels Help Singapore Businesses Save (Solar Panel Contractor), 2025. https://solarpanelcontractor.sg/