What Are Peak‑Time Outages and Why Do They Happen?

Ever wondered why the lights flicker or go out just when you need them most? That’s a peak‑time outage. It happens when a lot of people use electricity at the same time – usually early evening – and the grid can’t keep up. Think of the power grid like a highway: if too many cars try to pass at once, traffic jams form. In the same way, the surge in demand can overload transformers, lines, or generation plants, causing a brief shutdown.

Common Triggers Behind the Outages

Weather is a big driver. A hot summer day pushes everyone to fire up air‑conditioners, while a cold snap makes heaters run flat‑out. Both situations spike usage sharply. Another trigger is equipment failure – an aging transformer or a broken line can’t handle the load, and the system trips to protect itself. Even planned maintenance can backfire if it’s scheduled during the busiest hours.

How to Stay Safe and Reduce the Impact

First, keep a flashlight and fresh batteries in an easy‑to‑reach spot. Don’t rely on your phone’s screen for light; it drains fast. If you have medical devices that need power, ask your doctor about a backup battery or generator. Second, try to shift non‑essential electricity use to off‑peak times. Running the dishwasher after midnight or washing clothes early in the morning eases the strain on the grid.

Another practical tip is to unplug electronics during an outage. A sudden surge when power returns can fry gadgets. If you have a surge protector, keep it turned on – it can absorb the extra voltage spike. Lastly, stay informed. Sign up for alerts from your utility company so you know when an outage is planned or when it’s being fixed.

Peak‑time outages are inconvenient, but they’re also a signal that our energy system is being pushed hard. Simple habits like moving heavy‑use appliances to off‑peak hours, keeping emergency kits ready, and protecting devices can make the next blackout much less stressful. Remember, the grid is a shared resource; the more we help balance demand, the fewer surprises we’ll face when the lights dim.

Johannesburg Power to Initiate Peak-Time Blackouts to Protect Grid

Starting Monday, Johannesburg's City Power will enforce load reduction measures to prevent grid collapse caused by high electricity demand. These measures include peak-time power cuts in high-density areas and intensified use of ripple relay systems to manage electricity consumption and protect the grid.