Reducing Energy Costs at Gina Corporate Clothing, a South African Clothing Manufacturer, Through Targeted Interventions

For over eight years, Gina Corporate Clothing has been monitoring its energy consumption across multiple buildings. Like many energy-intensive businesses in the manufacturing sector, they faced rising costs, increasing demand levies, and a growing need for a more sustainable and predictable energy model. Through a combination of metering and monitoring, data analysis, energy optimisation, and cost-saving interventions, particularly LED lighting and solar PV, Gina Corporate Clothing have made significant strides in reducing both their monthly energy consumption and spend. Between 2017 and 2024, Energy Cost Savers collaborated closely with the client to identify areas of waste, proposed practical interventions, and guided the implementation of improvements that have directly impacted operating costs.

The Energy Profile: 2017–2024

From 2017 to 2020, Gina Corporate Clothing recorded an average total kWh consumption of well over 700,000 kWh per year across all of their buildings. Electricity bills during this time were high and continued to climb in tandem with increased production activity and national energy pricing trends. Additionally, they faced substantial kVA demand levies, the cost of which often exceeded R600,000 per year. Faced with these escalating costs, the company was determined to take measurable action that would not only reduce expenses but also support its commitment to operational sustainability.

Key Interventions

Two key interventions were made, both of which delivered long-term impact:

1. Solar Installation (June 2019):

From 2017 to 2020, Gina Corporate Clothing recorded an average total kWh consumption of well over 700,000 kWh per year across all of their buildings. Electricity bills during this time were high and continued to climb in tandem with increased production activity and national energy pricing trends. Additionally, they faced substantial kVA demand levies, the cost of which often exceeded R600,000 per year. Faced with these escalating costs, the company was determined to take measurable action that would not only reduce expenses but also support its commitment to operational sustainability.

2. LED Lighting Retrofit (Early 2021):

There was outdated and energy-inefficient lighting installed across the factory floor, offices, and warehouse, which was replaced with energy-efficient LED lighting. This LED lighting retrofit further contributed to reductions in kVA demand, kWh consumption and ultimately electricity costs. The LED Lighting offered a better lighting quality and included a 5-year warranty, which dramatically reduced maintenance costs.

The Impact of Load Shedding

It’s important to note that in 2023, the country experienced sustained and severe load shedding, which led to an artificial drop in recorded kWh consumption. Whilst this appears on the surface as a “saving,” the reality was that diesel generators were heavily relied upon to maintain operations. The associated diesel costs, though not included in the electricity spend, were substantial and highlight the hidden costs of grid instability. This underscores an important insight: that energy efficiency is not just about reducing electricity bills, it’s about ensuring resilience, predictability, aand sustainable control over all energy sources.

Energy Consumption Breakdown

In the table below, we have included a breakdown of the electricity consumption and related costs from the manufacturer’s main building (#44), which reflects the cumulative impact of the Solar PV, LED Lighting and other energy efficiency measures:

Over this 8-year period, the company achieved a 40 %+ reduction in kWh consumption from its 2018 high, even though operations expanded in some areas. These improvements, driven by ongoing monitoring, targeted infrastructure upgrades, have not only cut down on monthly billing but also helped stabilise consumption trends, thereby reducing the company’s exposure to volatile utility tariffs.

Lessons Learned

This case study demonstrates the powerful cumulative impact of simple, strategic interventions:

• Solar and LED technologies are not just environmentally friendly — they have a direct and measurable effect on operational expenses.
• kVA Demand levies, while often overlooked, can account for a significant portion of total energy spend and should be actively managed.
• Having visibility over consumption patterns is critical, especially when external factors like load shedding or generator usage distort the bigger picture.

At Energy Cost Savers, our role was to help Gina Corporate Clothing move from data to action. By identifying the right areas to intervene, supporting the implementation of change, and monitoring the results, we helped unlock long-term energy savings and cost control, without disruption to operations.

Gina Corporate Clothing is a strong example of what’s possible when energy waste is not just identified, but actively addressed. Through collaboration, data-driven decision-making, and a willingness to act, the company has set a benchmark in energy efficiency for the South African manufacturing sector.

At Energy Cost Savers, we bring this same level of focus, insight, and commitment to every client engagement. If your business is ready to take energy savings seriously and implement changes that deliver measurable ROI, we are here to help!

To watch our interview with the owner of Gina Corporate Clothing, click here.