Will I Still Have an Electric Bill with Solar Panels in Singapore?
Yes — you will still receive an SP Group electricity bill after installing solar panels, but it will be dramatically smaller. A typical landed home in Singapore paying $300–600 per month for electricity can expect that figure to drop to just $30–120 per month with a properly sized solar panel system. Solar eliminates most of the consumption charge on your bill, but fixed grid-connection fees, metering charges, and regulatory levies always remain.
This guide breaks down exactly what stays on your bill, what disappears, and how to minimise whatever is left — so you can set realistic expectations before going solar.
What Are the Components of a Singapore Electricity Bill?
Your SP Group bill has two broad categories: variable consumption charges (which solar slashes) and fixed charges (which remain regardless of solar). Understanding each component helps you predict your post-solar bill with precision.
| Bill Component | Type | Typical Cost | Affected by Solar? |
|---|---|---|---|
| Electricity consumption (kWh) | Variable | ~32¢/kWh | Yes — reduced 70–85% |
| Meter reading fee | Fixed | ~$2.40/mo | No |
| Grid connection charge | Fixed | ~$4–6/mo | No |
| Power system operation charge | Fixed | ~$1–2/mo | No |
| Market support services fee | Fixed | ~$1–2/mo | No |
| Net Energy Rebate (NER) credit | Credit | Varies | Yes — reduces bill further |
| GST (9%) | Tax | 9% of total | Indirectly — lower base = lower GST |
The fixed charges total roughly $10–20 per month. This is the floor of your bill — the minimum you will pay even if your solar system covers 100% of your daytime consumption. For a deeper breakdown of each line item, see our guide on how to read your SP electricity bill.
How Much Does Solar Reduce a Typical Singapore Electricity Bill?
Solar panels typically cut the consumption portion of a Singapore electricity bill by 70–85%, depending on system size, roof orientation, and household energy habits. The table below shows realistic before-and-after scenarios for different property types.
| Property Type | Before Solar | After Solar | Monthly Savings | Reduction |
|---|---|---|---|---|
| Terrace house | $250–400/mo | $30–80/mo | $220–320 | 75–85% |
| Semi-detached | $350–500/mo | $40–100/mo | $310–400 | 75–85% |
| Detached / bungalow | $400–700/mo | $50–120/mo | $350–580 | 70–83% |
| Condo (common areas) | $2,000–5,000/mo | $400–1,500/mo | $1,600–3,500 | 60–75% |
Individual results depend on factors like roof area, shading, panel efficiency, and most importantly your self-consumption ratio — the percentage of solar energy you use directly rather than exporting. We explore self-consumption in more detail below.
What Is the Net Energy Rebate and How Does It Affect My Bill?
The Net Energy Rebate (NER) is Singapore's mechanism for crediting solar homeowners for surplus energy exported to the national grid. Administered by SP Group, the NER pays you at the prevailing wholesale electricity rate — approximately 17.6¢/kWh as of 2026.
Here is how it works in practice:
- Your solar panels generate electricity during the day.
- Your home consumes what it needs in real time.
- Surplus energy flows back through your bi-directional meter to the grid.
- SP Group tracks the exported kWh and applies a credit on your next bill.
The credit appears as a line-item deduction, reducing your variable charges. In high-production months (typically March–May and August–October), the NER credit can offset a large share of your remaining consumption charge.
Important: The NER credits at the wholesale rate (~17.6¢/kWh), while you buy grid electricity at the retail rate (~32¢/kWh). This gap means every kWh you consume directly from your panels saves roughly twice as much as one you export. This is why self-consumption ratio matters so much. For a full explanation of NER mechanics, visit our Net Energy Rebate guide.
Why Does Self-Consumption Ratio Matter for My Electricity Bill?
Self-consumption ratio is the single biggest factor determining how low your post-solar electricity bill goes. It represents the percentage of your solar-generated electricity that your household uses directly, rather than exporting to the grid.
Consider this simplified comparison for a system generating 900 kWh per month:
| Scenario | Self-Consumption | kWh Used Directly | kWh Exported (NER) | Estimated Monthly Bill |
|---|---|---|---|---|
| Low self-consumption | 30% | 270 kWh | 630 kWh | $80–120 |
| Moderate self-consumption | 50% | 450 kWh | 450 kWh | $50–80 |
| High self-consumption (with battery) | 80% | 720 kWh | 180 kWh | $20–40 |
Households where someone is home during the day — working from home, with children, or with domestic helpers — naturally have higher self-consumption. You can also boost it by running washing machines, dishwashers, pool pumps, and EV chargers during peak solar hours (10 am – 3 pm).
Can Battery Storage Reduce My Remaining Electric Bill Further?
Yes — a home battery system can increase self-consumption from roughly 30–40% to 70–90%, substantially cutting the remaining variable charges on your bill.
Without a battery, excess solar energy generated midday is exported to the grid and credited at the wholesale NER rate (~17.6¢/kWh). With a battery, that excess is stored and used during evening peak hours when grid electricity costs ~32¢/kWh. The arithmetic is straightforward: each stored kWh saves you an additional ~14.4¢ compared to exporting it.
For a household that exports 15 kWh per day without a battery, adding storage could save an additional $60–70 per month. Batteries also provide backup during grid outages — an increasingly valued feature given Singapore's focus on energy resilience.
How Does the Cost of Solar Compare to the Savings?
For most Singapore landed homes, a solar panel system pays for itself in 4–6 years and delivers 20+ years of near-free electricity thereafter.
Sunollo offers three residential solar packages designed for different home sizes and energy needs:
- Radiance — $14,500 (ideal for terrace houses)
- Abundance — $15,000 (suited for semi-detached homes)
- Abundance Pro — $16,000 (designed for detached homes and bungalows)
If an upfront investment is not your preference, Sunollo also offers a $0-upfront solar plan from $99/month. Under this arrangement, the monthly payment is typically less than the electricity cost reduction, meaning you save from month one with no capital outlay.
To explore which package suits your home, visit our solar home solutions page or check the full solar panel cost breakdown for 2026.
What Does a Post-Solar Electricity Bill Actually Look Like?
After installing solar, your SP bill will still arrive monthly, but the consumption line will be dramatically lower — and you may see a Net Energy Rebate credit line reducing it further.
Here is a realistic example for a semi-detached home with a 10 kWp system:
| Line Item | Before Solar | After Solar |
|---|---|---|
| Electricity consumption (1,200 kWh → 250 kWh) | $384.00 | $80.00 |
| Net Energy Rebate credit (400 kWh exported) | — | −$70.40 |
| Meter reading fee | $2.40 | $2.40 |
| Grid connection charge | $5.00 | $5.00 |
| Power system operation & market fees | $3.50 | $3.50 |
| Subtotal (before GST) | $394.90 | $20.50 |
| GST (9%) | $35.54 | $1.85 |
| Total Monthly Bill | $430.44 | $22.35 |
That is a reduction of over 94% in this example. Results vary month to month with weather, consumption patterns, and seasonal solar irradiance, but the overall trend is consistent: solar dramatically shrinks your electricity bill.
Can I Achieve a $0 Electricity Bill with Solar in Singapore?
A true $0 electricity bill is unlikely because fixed grid-connection charges ($10–20/month) always apply, but you can get very close.
During months with excellent solar production and lower-than-usual household consumption, the NER export credits can offset nearly all variable charges. In these best-case months, your total bill may be as low as $10–15 including GST.
Disconnecting from the grid entirely is not practical or permitted for most Singapore residences. The grid connection ensures you have power during nighttime hours and cloudy stretches, and it is required for the NER scheme to function. The goal is not a zero bill — it is a negligible bill paired with decades of reliable, clean energy.
What Steps Can I Take to Minimise My Remaining Bill?
Beyond installing solar panels, several strategies can push your remaining electricity bill even lower:
- Shift heavy loads to daytime: Run washing machines, dryers, dishwashers, and pool pumps between 10 am and 3 pm when solar production peaks.
- Add battery storage: Store excess daytime generation for evening use instead of exporting at the lower wholesale rate.
- Use smart home energy management: Automated systems can schedule appliances to run during solar hours and reduce standby power draw.
- Charge your EV during the day: An EV charging at home during solar hours uses high-value self-generated electricity rather than grid power.
- Maintain your panels: Clean panels produce more energy. In Singapore's climate, quarterly cleaning ensures optimal output.
- Right-size your system: An undersized system leaves savings on the table, while an oversized one exports more at the lower NER rate. Work with your installer to match system size to your consumption profile.
Frequently Asked Questions
Will I still have an electric bill with solar panels in Singapore?
Yes. Solar panels eliminate most of the consumption charge, but fixed grid-connection fees, metering charges, and regulatory levies remain on every SP bill. Expect a minimum of $10–20 per month in fixed charges, with the total bill typically falling to $30–120 per month for landed homes.
What charges remain on my SP bill after installing solar?
Fixed charges that remain include the meter reading fee (~$2.40/month), grid connection charge (~$4–6/month), power system operation charge, market support services fee, and 9% GST. These total roughly $10–20 per month regardless of solar generation.
How much can solar panels reduce my electricity bill in Singapore?
Solar panels typically reduce the consumption portion of a Singapore electricity bill by 70–85%. A landed home spending $300–600 per month can expect bills of $30–120 per month after solar installation, depending on system size, roof orientation, and household energy habits.
What is the Net Energy Rebate and how does it affect my bill?
The Net Energy Rebate (NER) is SP Group's scheme for crediting homeowners who export surplus solar energy to the grid. Credits are applied at the wholesale electricity rate, approximately 17.6¢/kWh in 2026. The credit appears as a deduction on your monthly SP bill, further reducing your total payable amount.
Can I achieve a zero-dollar electricity bill with solar in Singapore?
A true $0 bill is unlikely because fixed grid charges always apply. However, during high-production, low-consumption months, NER credits can offset nearly all variable charges, bringing your bill as low as $10–15 including GST.
Does battery storage help reduce my remaining electricity bill?
Yes. A home battery stores excess daytime solar for evening use, increasing self-consumption from roughly 30–40% to 70–90%. This reduces the grid electricity you need to purchase during expensive peak evening hours, lowering the variable portion of your bill by an additional $60–70 per month.
How does self-consumption ratio affect my solar savings?
Self-consumption ratio is the percentage of solar energy you use directly instead of exporting. Higher self-consumption means greater savings because you avoid purchasing grid electricity at ~32¢/kWh instead of receiving the export credit at ~17.6¢/kWh. Each additional kWh consumed directly saves you roughly 14.4¢ more than exporting it.
What is the payback period for solar panels in Singapore?
Most residential solar systems in Singapore achieve payback in 4–6 years, after which electricity is essentially free for the remaining 20+ year lifespan. Sunollo's $0-upfront plan from $99/month delivers immediate savings since the monthly payment is typically less than the electricity cost reduction from day one.
Sources
- SP Group — Electricity tariffs, Net Energy Rebate scheme, and billing structure
- Energy Market Authority (EMA) — Solar energy regulations and grid-connection policies for Singapore
- National Climate Change Secretariat (NCCS) — Singapore Green Plan 2030 and renewable energy targets
- Sunollo: How to Read Your SP Electricity Bill in 2026
- Sunollo: Understanding the Net Energy Rebate in Singapore
- Sunollo: Solar Panel Cost in Singapore 2026
