- Tshwane rate increases
- solar panel cleaning
- Pretoria electricity tariffs
- solar savings
- Highveld solar maintenance
City of Tshwane Rate Increases 2026 – Why Clean Solar Panels Matter More Than Ever
Tshwane electricity tariffs rose 8.8% from 1 July 2026. Here’s how keeping your solar panels clean helps offset higher municipal bills and protect your investment in Pretoria and Gauteng.
Riaan L
Marketing Director & Co-Founder
· 3 min read
From 1 July 2026, City of Tshwane residents faced new tariff increases. Electricity went up by 8.8%, water by 10%, and other services also rose. For many households and businesses already feeling the pinch, every extra cent on the municipal bill hurts.
If you have solar panels, this is exactly the moment to make sure they are performing at their best.
What Changed on 1 July 2026
According to the City of Tshwane’s approved 2026/27 tariffs (including 15% VAT):
| Block | New Tariff (incl. VAT) |
|---|---|
| 1 – 100 kWh | ± R3.73 / kWh |
| 101 – 400 kWh | ± R4.36 / kWh |
| 401 – 650 kWh | ± R4.75 / kWh |
| Above 650 kWh | ± R5.12 / kWh |
The higher the block you land in, the more expensive every unit of grid power becomes.
How Dirty Panels Make the Problem Worse
Highveld dust and soiling can reduce solar output by 15–30%. When panels are dirty, you generate less of your own power and are forced to buy more expensive electricity from the municipality — right when tariffs have just gone up.
That lost generation is now worth more in rand terms than before.
A Simple Savings Example
Let’s take a conservative assumption:
- A typical Pretoria home solar system that should produce around 800 kWh in a good month when clean.
- Dust causes a 20% drop in output → 160 kWh less generated that month.
- You buy those 160 kWh from the City at an average of roughly R4.60 / kWh (middle blocks).
Potential monthly cost of dirty panels: 160 kWh × R4.60 ≈ R736.
Over a year that can easily exceed R8 000 – R9 000 in extra grid electricity — far more than the cost of a couple of professional cleans.
Clean panels help you stay in lower tariff blocks longer and reduce the amount of expensive municipal power you need to buy.
Simple Ways to Protect Yourself
-
Keep panels clean
Regular professional cleaning restores lost performance and maximises the free power your system produces every day. -
Monitor your generation
Check your inverter or app data. A drop in daily or monthly yield is often the first sign of dust build-up. -
Consider a maintenance plan
A quarterly or biannual plan removes the hassle of remembering to book and keeps output consistent through the dusty winter and spring months. -
Bundle where it makes sense
Many customers combine solar cleaning with exterior window or glass cleaning on the same visit — one trip, better value.
The Bottom Line for Pretoria & Tshwane Homeowners
Rising municipal tariffs make self-generated solar power more valuable than ever. The difference between dirty and clean panels is no longer just a few percentage points of efficiency — it is real money on your monthly bill.
At HelioClean Solutions we use purified RO/DI water and soft, solar-safe methods so your panels deliver the maximum possible output without risk to the glass or coatings.
Ready to get more from the solar system you already own?
Get an instant indicative price or send us a message. We serve homes, estates and commercial sites across Pretoria, Centurion, Pretoria East and greater Tshwane.
Riaan Lombard – Marketing Director & Co-Founder, HelioClean Solutions