Costa Coffee, the UK’s largest coffee chain and a division of Whitbread became NQA’s first client in the food industry to achieve certification to ISO 50001, the international standard for energy management systems. While the motivation was to cut energy use the additional benefits of the process have been expanded production and increased output.
Challenges & Actions
Ben Brakes, Whitbread’s environment manager, wanted to focus on one of their most energy intensive sites: their coffee bean roastery based in Lambeth, south London, where energy reduction was crucial.
Upon analysing their current operations, it became apparent that, due to the limited amount of electricity available to the site, expansion would only be possible if they could create spare capacity.
We looked at every piece of equipment, how it was used and when it was used in the manufacturing process. We analysed everything, from the coffee bean roasters and packaging equipment down to the kettle in the staff room,” remembers Brakes.
It helped us to identify where we needed to better control our equipment and allowed us to see when our peak energy uses were. Examining how the site was being used gave us the chance to engrain energy saving in all of our working practices, including common, often overlooked behaviours (electric wall heaters are no longer left on if the windows are open, for example). We then focused on how equipment was used in the roasting process.”
Lessons & Results
Process improvements
As a result, some processes were changed, such as delaying the switching on of packaging equipment until coffee beans are roasted, instead of having it on from the start of the 12-hour operating period. Measures like this may seem simple with hindsight, but this could only be done after calculating that no manufacturing time would be lost as a result of switching on later.
Such measures, when coupled with more efficient equipment and behaviour change programmes, enabled the site to cut its energy use by 16%. The savings have meant the firm has met its key target to generate enough spare capacity to install a second roaster. They expect to see further cuts to energy in the future, as they continue to evaluate and tweak the site’s performance.
Commenting on the impact of the energy saving, Brakes adds,
Reducing our energy consumption has enabled us to expand our production capability without having to build a new site.
Cultural change
Going for certification undoubtedly gave us a platform to go to staff and say: ‘We are one of the first companies to go for this standard, we’re really proud of it and you should be too.’ It gives us something over and above the usual ‘switch it off’ campaigns and allowed us to really engage people with simple housekeeping issues that can make a lot of difference.
The Costa team are proud of meeting the standard. It has been well received in team briefings and internal communication in Whitbread.”
The right partner
When it came to choosing which certification body to work with, Ben Brakes explains,
From the start, we were very clear about what we wanted to achieve and NQA worked to support our aims and values. After long discussions we were confident that we could work together to achieve our objectives. A few members of Whitbread staff were already aware of the certification process but often people can be afraid of the word ‘audit’, especially if they haven’t been through the process before. NQA made the overall process simple and its aim easy to understand for people on site who hadn’t any prior experience of auditing.”
Having seen the benefits of ISO 50001 in Costa, Whitbread intend to roll out the standard to the company as a whole.
