In many large manufacturing environments, steam is the engine that drives production. Across industries, from food processing to textiles, steam plays a central role in heating, shaping, sterilising and finishing products at scale. Its distribution through pipes at controlled pressure and temperature gives factories an efficient way to deliver consistent, reliable heat where it is needed. When a steam system runs well, it is invisible. When it falters, the entire production line feels it.

Textile manufacturing relies heavily on steam. Pressing and finishing processes need steady, dry steam to shape garments, remove creases and set fabric. Any change in pressure or quality can slow lines, reduce output or compromise consistency. It is a utility that underpins the daily rhythm of a factory floor.

This is the backdrop to PepClo’s challenge. The company runs six boilers to power the pressing and finishing lines that process millions of garments each year. For decades, its steam system followed a simple pattern – municipal water in, steam out, and resource lost at the end. That approach worked when costs were predictable and supply was reliable. Rising municipal tariffs and increasing supply instability have created pressure on the system. Steam generation depends on a stable, high-volume water supply, and any disruption ripples through the factory, affecting productivity and cost.

The team began rethinking the system in late 2023. The first step was securing the water supply by shifting from municipal water to on-site boreholes. This reduced the risk of external disruptions and gave the factory more control over costs. Borehole water can damage boilers if it contains minerals, so the feed water is treated through a reverse osmosis system before entering the network. High-quality feed water delivers cleaner steam, protects equipment and maintains the stable pressure required to keep the lines moving at full capacity.

The second step addressed the loss that happened after steam was used. In the old system, once the steam cooled, the condensate was lost to the atmosphere along with the energy used to produce it. The new system captures that condensate, filters it and returns it to the boilers. This has reduced the energy required to bring the system back to pressure by 65%, saving approximately 30% kWh per month. As the water is still hot, it takes less energy to bring it back to pressure. This significantly reduces the amount of water drawn and energy consumed.

The closed-loop system now supports daily operations more efficiently and reliably. Three of the six boilers are typically active at any time, providing stable steam pressure throughout the day. Operators experience fewer disruptions and scale-related maintenance and downtime have fallen by 85%, resulting in more predictable operations and reduced intervention costs.

This shift reflects the pressures facing South African manufacturers: rising tariffs, fragile infrastructure and the need to reduce environmental impact without slowing production. The new system went live in 2024 and continues to be refined as the company gathers data on water and energy savings.

In modernising a utility that has long sat quietly in the background, PepClo has strengthened its operational backbone. Steam will always be essential, and how it is generated, used and reused now looks very different and far more sustainable than it has in the past.