Category Archives: Blog

Blockchain-based energy trading is a decentralized system that allows consumers and producers to buy, sell, or exchange electricity directly using blockchain technology. Instead of relying on a central utility or broker, blockchain enables peer-to-peer (P2P) energy transactions that are transparent, secure, and automated. In simple terms, it lets you trade electricity like digital currency — safely and instantly… Read More »

A smart grid is a modern electricity network that uses digital communication, data analytics, and automation to improve how power is generated, distributed, and consumed. A smart grid is different from traditional grids. Traditional grids only send electricity from power plants to consumers. A smart grid allows communication between users and utilities in both directions. This allows the… Read More »

If you’re a design engineer, you’ve likely received the infamous spec sheet from marketing that says: “Maximize run time, minimize battery size and cost.” No mention of how much runtime, how small the battery should be, or what cost is acceptable. It’s almost as if they’re hoping for a miracle—and you’re the one expected to deliver it. So… Read More »

An interposing relay (sometimes called an interface relay or isolation relay) is essentially a relay used to interface two circuits that have different electrical characteristics (e.g. different voltages, current levels, or common references). It “interposes” itself between a control circuit (e.g. PLC, sensor output) and a load or another circuit that may not be directly compatible. Key roles… Read More »

Have you ever looked up at power lines and wondered about those colorful balls hanging from them? These spheres, often orange, white, or yellow, are more than just decorations—they play a crucial role in safety. Known as aerial marker balls or visibility markers, they help prevent accidents by making power lines visible to aircraft and birds. In this… Read More »

In the dynamic landscape of South Africa’s engineering sector, electrical engineers play a pivotal role in powering industries from renewable energy to infrastructure development. As of September 2025, electrical engineer salaries in South Africa continue to reflect strong demand, with average annual earnings ranging from R385,000 to R818,000. This guide dives deep into the latest data on electrical… Read More »