Logistics firm uses LEDs to slash storage shed lighting costs

A logistics company has seen real benefits through the replacement of 400W SON high bays with 172W LED lights in its bulk storage shed.

The deployment of LED bulbs in an Edinburgh bulk storage shed has led to significant benefits for a logistics company. By replacing its legacy lighting solutions, the firm has realised performance and efficiency gains, and crucially, minimised lighting maintenance.


Assessing the challenge

In the Leith port facility - used to hold food products such as grain - 400W HID high bays were struggling to provide the necessary level of illumination. This was because the heat generated by the lights caused cargo dust to burn onto the polycarbonate lenses. As a consequence, the performance of the lamps was poor and the bays needed replacing at regular intervals.

This created a number of issues for the logistics firm. With the lamps located on the high ceiling, they could only be changed when the storage shed was empty, and the required scissor lift had the necessary access. This meant damaged or broken lights could go for weeks, months or even a whole year without being replaced.

In addition, a team of three men was required to operate the lifting machinery and replace the lamps. So not only did the facility suffer from inaccessible, low-performance, energy-consuming lighting, there were also significant labour and maintenance costs to consider.


Finding a solution

The company determined that by reducing the amount of heat generated by the lights, the build-up of dust could be avoided and performance improved. By ensuring the bulbs stayed bright and operational for longer, the need for costly and logistically complex maintenance work could be minimised.

With this in mind, the firm invested in 172W LED high bays. As well as using less electricity, the energy-efficient lights give off almost no heat, helped to alleviate concerns about dust deposits. They are also designed to last for many years without significantly diminished quality of illumination, helping to reduce long-term operational costs.

Deploying the LED lamps could essentially be considered a 'one-time' job, with no need to replace the bulbs for a number of years. As such, the lack of access to the storage shed for maintenance staff was less of an issue.


Assessing the outcome

With the storage unit's lights in use for eight hours a day, five days a week, 50 weeks a year, there were significant savings to be made. Replacing 13 400W HID lamps with 8 172W LED lamps reduced energy consumption by 75 per cent from 3.85 W/sqm to 1.05 W/sqm, saving £695 per year. In addition, this has brought about a 271-ton reduction in CO2 emissions.

But the most significant savings can be seen in terms of lighting maintenance, with the company no longer required to pay for the workers, scissor lift hire, replacement lenses and lamp changes. The company estimates the deployment of LEDs has cut spend in this area by £2,297 per year.

With the energy efficiency and maintenance gains taken into account, the new LED lighting should recoup its original capital investment of £4,320 after 1.3 years. Other benefits include an improved quality of light, making it easier for workers within the shed to access product quality. And with the LED lights containing no harmful materials, there are no expensive disposal costs to account for in the future.