Electricity Price Per kWh in South Africa: 2026/27 Rates & Costs
There is no single electricity price per kWh in South Africa, as the amount households pay depends on their electricity supplier, tariff structure, consumption level and location. Eskom-direct customers and municipal electricity users may follow different pricing models, while some tariffs also include different rates depending on usage periods or consumption blocks. This guide explains the current electricity price per kWh in South Africa, including Eskom and municipal tariff structures, how to calculate your electricity costs, why electricity rates differ between households, and practical ways to manage rising energy expenses.
Key Takeaways
There is no single electricity price per kWh in South Africa. Eskom-direct and municipal customers pay different tariffs.
For 2026/27, Eskom Homelight 20A costs about R2.70/kWh and Homelight 60A about R3.44/kWh, including VAT.
Municipal electricity can cost more or less depending on the city, tariff category, consumption block and fixed charges.
Understanding your kWh usage and appliance consumption can help you estimate electricity costs, identify high-energy-use areas, and better manage monthly bills.
For households on time-of-use tariffs, shifting consumption away from expensive peak periods can help manage electricity costs. Solar and energy storage can also reduce the amount of electricity that needs to be purchased from the grid.
What Is the Price of Electricity Per kWh in South Africa?
For South African households, electricity prices depend on who supplies the electricity and which tariff structure applies. Homes supplied directly by Eskom follow Eskom’s residential tariffs, while households supplied through municipalities pay locally approved municipal electricity tariffs.
Eskom Electricity Price Per kWh for 2026/27
Eskom residential electricity charges vary by tariff category. Eskom's standard tariffs for direct customers increased by an average of 8.76% from 1 April 2026. The amount an individual household pays still depends on its specific residential tariff.
Eskom’s residential tariffs mainly fall into three groups: Homelight, Homepower and Homeflex.
Homelight Tariff: Designed for residential customers with lower electricity demand. It includes Homelight 20A and Homelight 60A options, with pricing based on electricity consumption.
Homepower Tariff: Designed for households with higher electricity demand and larger electricity supply requirements. Different Homepower categories apply depending on the household’s supply setup.
Homeflex Tariff: A time-of-use tariff where electricity prices change depending on when electricity is used, with different peak, standard and off-peak rates.
The table below shows the main Eskom residential electricity charges for 2026/27:
Eskom residential tariff | Electricity charge (before additional charges) | Typical household use |
Homelight 20A | Around 270.30 c/kWh (R2.70/kWh) | Lower-consumption residential customers |
Homelight 60A | Around 343.61 c/kWh (R3.44/kWh) | Residential customers with higher supply capacity |
Homepower | Around 355.56 c/kWh (R3.56/kWh) combined variable charge on prepaid | Homes with higher electricity demand |
Homeflex | Time-of-use pricing varies by peak, standard and off-peak periods | Households using time-of-use tariffs, including eligible rooftop solar customers |
Source: Eskom 2026/27 Tariff Booklet
These figures show the energy charge component of Eskom’s residential tariffs. The final electricity bill may also include other charges, such as fixed service fees, network-related charges and VAT, depending on the tariff category.
Municipal Electricity Prices in South Africa
Many South African households receive electricity through municipalities rather than directly from Eskom. Municipalities apply their own approved residential tariffs, so electricity prices can differ between cities.
Eskom's local-authority tariffs increased by an average of 9.01% from 1 July 2026, but this does not mean every municipality increased residential prices by exactly 9.01%. Each municipality approves its own customer tariffs and charging structure.
For easier comparison, the examples below use approximate VAT-inclusive residential energy rates where possible. Fixed charges may apply separately.
City | Residential electricity price examples (2026/27) |
1–100 kWh: around R3.24/kWh,101–400 kWh: around R3.79/kWh,401–650 kWh: around R4.13/kWh,Above 650 kWh: around R4.46/kWh | |
Johannesburg (City Power) | Residential Prepaid High:first 350 kWh about R3.34/kWh; 351–500 kWh about R3.83/kWh; above 500 kWh about R4.37/kWh, including VAT. Fixed service and capacity charges total about R241.50/month including VAT. |
Residential tariffs vary by category: Domestic: around R4.14/kWh for the first usage block and up to around R4.94/kWh above the block limit, Home User: around R3.56–R4.69/kWh depending on usage block,Lifeline: lower subsidised rates for qualifying households |
These figures are examples of municipal residential tariffs rather than a single electricity price for each city. The rate that applies to a household depends on the tariff category, electricity usage and any additional service charges.
How to Calculate kWh Usage and Estimate Electricity Costs
After checking electricity rates in South Africa, knowing your household’s actual energy consumption is the next important step. Calculating kWh usage helps estimate electricity consumption, track how much energy your household uses, and provide a clearer view of daily and monthly power usage.
Step 1: Check the Appliance’s Power Rating
The first step is to find the power rating of each appliance, usually shown in watts (W) on the product label or user manual. This number indicates how much electricity the appliance uses when operating. For example, a 1,000W appliance uses more power than a 100W device when running for the same amount of time. Checking appliances that use the most electricity can also help identify which devices may have the biggest impact on household energy consumption.
Step 2: Convert Watts to Kilowatts
Since electricity bills are measured in kilowatt-hours (kWh), appliance power needs to be converted from watts to kilowatts. Simply divide the wattage by 1,000.
Formula: kW = Watts ÷ 1,000
For example, a 500W appliance uses:
500W ÷ 1,000 = 0.5kW
Step 3: Calculate Daily and Monthly Energy Consumption
After finding the appliance’s power in kilowatts, multiply it by the number of hours it operates.
Formula: kWh = kW × Hours of Use
For example, a 0.5kW appliance running for 4 hours per day uses:
0.5kW × 4 hours = 2kWh per day
Multiply the daily usage by the number of days in a month to estimate monthly consumption.
Step 4: Apply Your Electricity Tariff
Once you know your monthly consumption, check how your electricity supplier charges for that usage. For a simple single-rate tariff, the variable electricity charge can be estimated by multiplying total kWh consumption by the applicable rate.
Formula: Electricity Cost = kWh Usage × Electricity Price per kWh
For example, if a household uses 350 kWh per month and the applicable energy rate is R2.70/kWh, using Eskom Homelight 20A as a simplified example:
350 kWh × R2.70 = approximately R945
However, many South African tariffs do not use a single flat rate. Inclining block tariffs and time-of-use tariffs may charge different rates depending on consumption levels or when electricity is used. Fixed service and network charges may also apply, so this calculation provides an estimate rather than the exact electricity bill.
Why Electricity Prices Differ in South Africa
Two households using the same number of kilowatt-hours can still receive different electricity bills. The difference is usually driven more by supplier and tariff structure than by the electricity itself.
Electricity Supplier and Municipality
Eskom supplies some households directly, while many households buy electricity from municipalities such as the City of Johannesburg, City of Cape Town or City of Tshwane. Each supplier applies its own approved tariff structure.
Usage Blocks and Tariff Type
Some tariffs use a flat energy rate, while others use inclining blocks that become more expensive as monthly consumption rises. Time-of-use tariffs instead vary by the time and season in which electricity is consumed. This means the question "How much does 1 kWh cost in South Africa?" cannot be answered accurately without first knowing the supplier and tariff category.
Fixed and Network Charges
Electricity bills may include more than the per-kWh energy charge. Depending on the tariff, households can also pay service charges, network charges, capacity charges or other fixed components. As a result, the effective cost per kWh can be higher than the advertised energy rate, especially for households with low monthly consumption but significant fixed charges.
Annual Tariff Adjustments
Electricity tariffs are adjusted through regulatory and municipal processes. For 2026/27, Eskom direct tariffs increased by an average of 8.76%, while Eskom local-authority bulk tariffs increased by 9.01%. Individual municipal retail tariff changes still vary by location and customer category.
How to Reduce Electricity Costs as Prices Rise in South Africa
As electricity prices continue to rise in South Africa, households need to find more effective ways to manage energy costs. Improving energy efficiency, adjusting electricity usage habits, and adopting suitable energy solutions can help reduce the impact of higher electricity bills.
1. Understand Your Electricity Usage
Understanding where electricity is used is the first step to reducing unnecessary energy costs. Reviewing monthly kWh consumption and identifying high-demand appliances, such as geysers, pool pumps and heating equipment, can help households understand which areas contribute most to their electricity use.
This information makes it easier to identify opportunities to reduce waste, such as adjusting operating schedules or avoiding unnecessary usage.
2. Track Electricity Spending with Prepaid Electricity
Prepaid electricity allows households to pay for electricity before use and track remaining credit as they consume power. Prepaid electricity is not automatically cheaper than postpaid electricity. Its main advantage for budgeting is visibility: households can see how quickly they are consuming purchased units and adjust their usage accordingly.
3. Shift Flexible Usage to Cheaper Periods on Time-of-Use Tariffs
If your tariff charges different rates by time of day, moving flexible loads away from peak periods can help lower the variable electricity cost. For example, some households may be able to schedule dishwashers, washing machines, pool pumps, water heating or battery charging for standard or off-peak periods instead of expensive peak hours. This is particularly relevant to Eskom Homeflex, where the difference between peak and off-peak energy rates can be substantial.
4. Use Energy Storage to Manage Time-of-Use and Solar Energy
Battery storage does not automatically make grid electricity cheaper. If a battery is simply charged from the grid and used later under the same flat tariff, conversion losses can mean slightly more electricity must be purchased overall.
The potential cost-management benefit is stronger when energy storage is used with a time-of-use tariff or solar generation. Households can charge during lower-cost periods and use stored energy during expensive peak periods, or store solar electricity for use later instead of purchasing the same amount of energy from the grid. A portable power station can provide this flexibility while also supplying stored energy when household appliances need it.
For households that want a flexible everyday energy storage option, the EcoFlow DELTA 3 Max Portable Power Station offers 2,048Wh of battery capacity and 2,400W rated AC output. Its value in the context of electricity prices is not simply backup power. The stored capacity can help households shift when electricity is consumed, while solar charging provides another way to reduce reliance on grid electricity. Smart control also makes it easier to manage how stored power is used.
For households with larger daily electricity requirements or a greater focus on solar energy storage, the EcoFlow DELTA Pro 3 Portable Power Station provides a larger and expandable energy system. Its 4,096Wh base capacity can expand to 12kWh, while up to 2,600W of solar input allows households to store more solar energy for later use. This makes the DELTA Pro 3 more relevant to households looking to reduce longer-term grid reliance rather than only provide short-duration backup power.
5. Choose Energy-Efficient Appliances
Replacing older or inefficient appliances with energy-saving models can help reduce long-term electricity consumption. Appliances with higher energy efficiency ratings typically use less power while providing the same functions, which can lower daily energy demand and reduce household electricity expenses over time. Although energy-efficient appliances may require a higher initial purchase cost, the savings from lower electricity usage can help offset the investment in the long run.
Conclusion
Electricity prices per kWh in South Africa vary depending on the supplier, tariff structure, location and household consumption patterns. Understanding how electricity is charged can help households better interpret their bills and identify opportunities to reduce unnecessary energy costs.
Rather than focusing only on the price of a per kWh, households should consider their complete tariff structure, including consumption blocks, time-of-use periods and additional charges. By improving energy efficiency, adjusting electricity usage habits and using suitable energy solutions, households can gain more control over their long-term electricity expenses.
FAQs
How Much Electricity Does R500 Buy in South Africa?
The number of units depends on the applicable tariff. On a simple rate of R2.70/kWh, R500 would theoretically buy about 185 kWh. At R4.00/kWh, it would buy about 125 kWh. In practice, prepaid block tariffs and fixed or other charges can affect how many units are received, so the amount purchased may differ from this simple calculation.
Are Prepaid Electricity Meters Cheaper Than Postpaid Electricity?
Prepaid electricity meters are not always cheaper than postpaid electricity, as the overall cost depends on the tariff structure and electricity provider. However, they can help households monitor usage more closely because users pay for electricity before consumption and can track how much power they use. This makes it easier to control spending, avoid unexpected bills, and adjust electricity habits based on available budget and needs.
Is Electricity Cheaper Directly From Eskom Than From a Municipality?
Not always, because the answer depends on the tariffs being compared. Eskom Homelight may have a lower energy rate than some municipal residential tariffs, but other Eskom tariffs include fixed and network charges. Municipal structures also differ significantly between cities. Compare the total charges applicable to your own consumption rather than the per-kWh rate alone.
How Long Will 50 Units of Electricity Last?
In South Africa, 50 units of electricity means 50 kWh, but how long it lasts depends on your household’s daily consumption and tariff structure. A low-use household running essential appliances may make it last several days, while homes using geysers, heaters or other high-power appliances may use it much faster. For reference, a household using around 10 kWh per day would use 50 units in about five days. Actual usage varies depending on your appliances, electricity habits and local tariff.