Most people assume 27 sen a unit. Once your EV lands on top of your household usage, the real number is far higher — and it climbs every time you cross a TNB threshold. See yours in under a minute.
TNB doesn't bill your car separately. It bills your house, and where your total monthly usage lands decides the rate on every unit you've used.
That's what makes an EV different from any other appliance you've added. A 1,250 km month needs somewhere around 215 kWh at the wall — enough to push a mid-sized household through one or two thresholds at once:
| Threshold | What happens when you cross it |
|---|---|
| 600 kWh | The RM10 retail charge, AFA and 8% service tax all start applying |
| 1,000 kWh | The Energy Efficiency Incentive rebate disappears completely |
| 1,500 kWh | Your energy rate jumps from 27.03 to 37.03 sen — on every unit, not just the ones above the line |
Cross the 1,500 kWh line and your car isn't just paying for its own units; it's re-pricing your entire household bill. The calculator above shows this as the effective sen/kWh your charging actually costs, which for most homes lands between 50 and 80 sen — and past a ringgit a unit for anyone the car tips over the 1,500 kWh line.
Roughly 1 kWp of rooftop solar covers about 450 km of driving a month. Sized for the car alone, on top of whatever your household already uses:
| Monthly driving | Energy at the wall | Extra solar needed | Roughly |
|---|---|---|---|
| 600 km | ~105 kWh | 1.4 kWp | 2–3 panels |
| 1,250 km | ~220 kWh | 2.8 kWp | 4–5 panels |
| 2,000 km | ~355 kWh | 4.5 kWp | 7–8 panels |
| 3,000 km | ~530 kWh | 6.8 kWp | 11 panels |
Based on 620W panels and 16 kWh/100 km. Most homes add this to a system sized for the house itself, which is why the calculator prices the extra capacity separately rather than quoting a whole new system.
Rent-to-Own from RM0 upfront, or buy outright from RM21,000. Either way, the units your car draws in daylight cost about 19 sen instead of the 50-80 sen TNB charges.
From RM248/month on the 10-year plan, or RM158/month over 5 years with a down payment. Free maintenance and a performance guarantee included.
SuRIA Home returns RM600 per kWac installed, paid to your TNB-registered account. First 50,000 households, closing 31 December 2026.
Roughly 1 kWp covers 450 km of driving a month. We size the extra capacity your EV needs on top of what the house already uses.
We made solar installation an hassle-free process.
Feel free to reach out if you have any inquiry!
A typical landed-home solar system in Singapore costs from S$20,000 outright for a small-roof setup (around 40m²), scaling to S$30,000–S$40,000 for medium and large roofs (75–125m²). Prefer no upfront cost? Our Rent-to-Own plan starts from S$210/month with S$0 upfront. Get a personalised quote in 60 seconds with our solar calculator.
Yes. GetSolar offers a 10-year Rent-to-Own plan from S$210/month with S$0 upfront — typically lower than your current SP Group bill, and the system becomes yours at the end of the term. We also offer a 5-year RTO (from S$160/month, ~50% down) and outright purchase from S$20,000. See which option saves you more →
Most Singapore landed-home owners save S$240–S$775 per month on their SP Group bill, depending on roof size: small roofs (40m²) save ~S$240/month, medium (75m²) ~S$460/month, and large (125m²) ~S$775/month. Panels are warrantied for 25+ years of generation. Calculate your exact monthly savings.
From contract to commissioning, expect 8–12 weeks: 2–4 weeks for site survey, design, and EMA/SP Group licensing paperwork, then 1–2 days on-site for the physical install. We handle all permits, net-metering registration, and grid-connection approvals on your behalf.
Landed homes generally don't need URA approval but require EMA licensing and SP Group net-metering registration — we manage both. Condos and strata properties need MCST approval first; see our condo & MCST solar guide for the approval playbook.
A typical landed-home solar system in Singapore costs S$13,000-S$18,000 for a 6-8 kWP setup, which suits most 4-bedroom homes. Larger roofs (10 kWP+) range from S$20,000-S$28,000. Your exact figure depends on roof size, panel brand, and whether you add a battery. Get a personalised quote in 60 seconds with our solar calculator.
Absolutely! Given Singapore’s rising electricity prices, solar panels are a smart move to cut down on those expensive bills while helping save the planet.
The amount of savings you can enjoy will largely depend on 3 factors:
Plus, thanks to Singapore’s energy export structure, you can also earn from selling extra power back to the grid. You’re looking at a payback period of 5-8 years for a system that will last you over 25 years. A pretty solid investment, if you ask us.
You can estimate your potential savings with our solar calculator today!
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