Singapore Utility Bill: Every SP Charge Explained (2026)

[Updated, September 2026]

Key Takeaways:
SP Group's regulated tariff is 34.78 cents/kWh including GST for 1 July to 30 September 2026. That single per-kWh rate bundles energy, network, Market Support Services and market administration charges, so solar lowers all of them by cutting how much electricity you import from the grid. How much you still depends on your import rate and on how your export credits are calculated.

SP Group's regulated tariff rose 17% on 1 July 2026 to 34.78 cents/kWh including GST, the highest household rate on record. If you are on the regulated tariff, that is about S$20 more a month on 400 kWh, even if your usage did not change..

Bills here can feel confusing at the best of times, with layered charges, quarterly tariff changes and different formats depending on whether you are billed by SP Group or an electricity retailer. This guide breaks your bill down step by step, from tariff components to solar export credits, in clear plain English.

Understanding your bill helps you track usage accurately, avoid surprises and see how solar reduces monthly electricity costs. If you have installed solar or are considering it, you will also see where the savings appear and how to check that your system is delivering real financial returns.

What Is the SP Group Electricity Rate in 2026?

For 1 July to 30 September 2026, the SP Group regulated household tariff is 34.78 cents/kWh including GST. SP Group revises it every quarter, so always check the period printed on your bill.

Source: SP Group tariff revision, 1 July to 30 September 2026

At 400 kWh a month, Q3 works out to about S$139 before any U-Save rebate (the government rebate for eligible HDB households). The same usage in Q2 cost about S$119. For the reasons behind the jump, see our note on the Q3 2026 tariff rise.

Understanding How Electricity Billing Works in Singapore

Singapore operates under the Open Electricity Market (OEM), overseen by the Energy Market Authority (EMA). It lets you choose how you buy electricity, either directly from SP Group or through a licensed electricity retailer.

In Simple Terms: Your Electricity Billing Options

There are three common ways your electricity can be priced and billed:

1. SP Group (Regulated Tariff)

• Electricity is purchased directly from SP Group
• Prices follow a regulated tariff, reviewed quarterly
• SP Group issues a single monthly bill
• This applies to customers who remain on SP's default electricity plan

2. Electricity Retailer (OEM Plan)

• Electricity is purchased from a licensed electricity retailer
• Prices depend on the retail plan you sign up for (fixed, discounted, or wholesale-linked)
• The retailer issues your electricity bill
• Solar export credits are shown on a separate SP Utilities export statement

Whether a retail plan beats the regulated tariff depends on the gap between the two, which we track in our electricity price comparison.

3. Wholesale Electricity Market

• Electricity prices follow half-hourly wholesale market rates
• Prices can fluctuate month to month based on supply and demand
• Billing may be issued by SP Group or a retailer, depending on your setup
• This option is typically used by higher-usage customers or those on wholesale-linked plans

Which option you are on, all electricity flows through the same national grid operated by SP Group. The difference lies in how prices are set and how charges appear on your bill.

How To Read Your SP Group Electricity Bill

(For non-contestable customers billed directly by SP Group)

"Non-contestable" simple means you are on SP's regulated tariff. "Contestable" means you buy electricity at market-linked prices instead.

SP bills are comprehensive and predictable once you know what each section means.

Sample bills in this guide are for illustration. Rates reflect the billing period show, not the current quarter.

Solar reduces the amount of electricity drawn from the grid. Because most electricity charges are calculated on a per kWh, generating your own power lowers both energy charges and the grid-related charges tied to consumption.

1. Electricity Tariff

The regulated tariff bundles several components into a single per-kWh rate shown above:

• Energy cost
• Network charges
• Market Support Services (MSS)
• Market administration and power system operation fees

Since these are applied per kilowatt-hour you import, solar lowers the total by reducing how much you draw from the grid.

2. Electricity Consumption (kWh Used)

This section shows:

• Monthly electricity usage
• Comparisons against similar households or premises
• Historical usage trends

Where electricity use is concentrated during the day, solar offsets a larger share of grid consumption, making reductions easier to spot. For typical monthly totals by flat and house type, see our breakdown of the average electricity bill in Singapore.

3. Solar Export Credits (If You Have Solar)

SP bills show:

• Net export (kWh)
• Export rate (regulated or USEP-linked)
• Total export credit

These credits are automatically offset against your bill. The rate depends on your  customer type. Non-contestable customers are credited at the prevailing regulated export tariff, while OEM and contestable customers are credited at Uniform Singapore Energy Price (USEP), the wholesale price set every half hour. USEP can be higher or lower than the regulated export tariff, so credits can vary.

4. Other SP Charges

Metering fees and other fixed charges apply whether or not you have solar. GST is applied to your electricity charge, so it shrinks as your imports fall. Once you know which lines are per kWh and which are fixed, SP bills become very consistent and easy to track.

SP Contestable Customers (Wholesale Market Pricing)

Some customers, typically those with higher electricity usage, remain billed by SP Group but purchase electricity at wholesale market prices instead of the regulated tariff.

This sample shows how imported electricity is billed at wholesale prices for SP contestable customers.

1. Wholesale Market Rates

Instead of a fixed tariff:

• Electricity is priced at half-hourly wholesale rates
• Prices fluctuate based on supply and demand

Rates can be lower or higher than the regulated tariff depending on market conditions, so monthly bills may vary.

2. Solar Export Credits (If You Have Solar)

For SP contestable customers:

• Exported electricity is credited based on the USEP at the time of export
• Both consumption charges and export credits fluctuate with market prices

As a result, solar savings vary month to month, especially when prices are volatile. We break down how USEP is set and where it is heading in our guide to USEP prices in Singapore.

How To Read Your Electricity Retailer Bill

(For customers on OEM plans)

Retailer bills vary in layout, but the structure is broadly the same.

OEM Bill Reading, Part 1: Your Retailer Electricity Bill

This bill shows:

• Your electricity plan rate (fixed, discounted, or wholesale-linked)
• Your electricity consumption from the grid
• Pass-through charges collected on behalf of SP Group

Solar reduces this bill by lowering the amount of electricity you import from the grid.

Example: Electricity Retailer Bill (Wholesale Pricing)

Some retailer plans are linked to wholesale market prices rather than fixed rates. Under these plans:

• Electricity charges fluctuate based on half-hourly wholesale prices
• Monthly bills may vary even if consumption remains similar

Solar still reduces grid imports, but both consumption charges and export values may fluctuate with market conditions.

OEM Bill Reading, Part 2: Your SP Utilities Export Statement

Solar export credits never appear on retailer bills. Instead:

• SP Group issues a separate Utilities export statement
• Export credits are calculated using USEP
• Credits are presented as a simplified export rate for the billing period

These credits offset your overall electricity costs, even though they appear on a separate document.

SP vs Retailer Bill: What's The Actual Difference?

How Solar Shows Up Differently on SP vs Retailer Bills

• SP customers: lower consumption and export credits appear on the same bill (unless on wholesale pricing)
• Retailer customers: lower consumption appears on the retailer bill, while export credits appear on the SP statement

This  changes where you find each figure. What you save also depends on your import rate and how your export credits are calculated.

Sample Monthly Breakdown: SP vs Retailer (With Solar)

What Else Is On Your SP Utilities Bill?

Your SP Utilities bill can also carry water charges from PUB and, for some homes, town gas. Solar does not change those lines, so this guide focuses on the electricity section, which is where solar makes the difference.

Bottom Line: Reading Your Bill With Solar

Electricity bills may look complex at first, but once you know who handles what between SP Group and electricity retailers, the structure becomes clear. Solar reduces your grid usage and earns you export credits administered by SP Group.

The structure is the same across bill types. The amount you save depends on your import rate and how your export credits are calculated. When the tariff is higher, each kWh you generate and use yourself avoids a bigger charge, while exported electricity is credited at the export rate instead.. For higher-usage accounts in particular, your bill becomes the clearest proof that your solar system is delivering real financial returns.

Cutting consumption helps too, and our 12 practical ways to save electricity covers the loads worth attacking first.

Curious how much you could save with solar? Get your free quote, or chat with us on WhatsApp for personalised guidance.