Setting up a system of

energy management at

Toshiba

How Toshiba reduced its energy consumption by 50% in 1 year

The Toshiba Dieppe site has made huge energy savings after having
renewed its chillers and air compressors. And thanks to the platform
MyDametis, teams are more autonomous in energy management.

Watch the testimony of Mohamed Mebtoul, director of the toner department at Toshiba's French factory

RESULTS

The results in figures

-50%

of gas consumption in building services over the year 2022 due to the waste heat recovery on air compressors and refrigeration units.

– €40

energy savings on the annual bill for 2022 thanks to the rapid detection of deviations. Result: better control of expenses

- 15%

of total heat energy consumption thanks to better optimization of heating regulation (scheduling, etc.) via the MyDametis software and its energy management system.

641 MWh

saved in 2022

146 T eqCO2

saved in 2022

CONTEXT

Toshiba Dieppe, leader in toner ink production

A giant in the manufacture of electronic and computer equipment, Toshiba also offers solutions in data storage, energy and infrastructure.

Toshiba Dieppe is one of the Japanese group's two largest toner ink production sites in the world. The site opened in 1986 and started its activity with the assembly of photocopiers. It was in 1993 that he began to produce toner ink: spraying, plastic injection, bottling and assembly of cartridges.

Toshiba Dieppe in a few figures

230

employees on site

30M €

of turnover

ISO certified

ISO 9001, ISO 14001 and ISO 45001

Labeled

"Industry of the Future Showcase"

1986

Established in Dieppe for over 35 years

The site consists of 3 buildings

Building Toner

Toner manufacturing building. Includes 2 chillers for machine cooling and 7 air compressors.

Building Services

Building dedicated to the assembly of photocopiers. Includes a small compressed air unit.

Building Logistics

Building dedicated to the logistics of finished products.

ISSUES

Overheating chillers and worn air compressors

1
2

Problem #1
Solution N ° 1

Overheated chillers

The Toner building is dedicated to the manufacture of toner cartridges. During the process, the machines generate a lot of heat. To avoid any risk of overheating, two cold units condition the air and keep the production circuit at the right temperature.

But there was a problem: the cold groups began to show signs of fatigue, especially during periods of heat. This issue is critical for the Toshiba Dieppe site because cold production must never be interrupted.

Installation of new
cold groups

The priority was to replace the two cold units at the end of the cycle. Dametis has installed two new ones in order to ensure and sustain cold production.

Chillers condition air temperature by removing heat from the area to be cooled. This heat, Dametis has recovered to transform it into energy.

1
2

Problem #2
Solution N ° 2

Worn air compressors and
energy guzzlers

At the same time, air compressors also began to underperform. Consequence: their consumption weighed more and more on the energy bill.

Toshiba Dieppe needed to improve energy performance by renewing its air compressors in addition to its refrigeration units.

Installation of new
compressors

Dametis has installed two new air compressors in the Toner building.

In order to optimize energy, Dametis has installed a heat exchanger that recovers the waste heat produced by air compressors and refrigeration units. These calories become a source of energy that heats the Services building dedicated to the assembly of photocopiers.

1
2

Problem #3
Solution N ° 3

Tools unsuitable for
energy management

As part of the signing of an energy performance contract (EPC), Toshiba Dieppe had to achieve specific energy efficiency objectives.

To monitor the site's energy consumption, the teams used inappropriate and impractical tools and modules. Consequence: collecting, analyzing and correlating each piece of data was long, tedious and repetitive.

energy management
faster and easier

Dametis proposed to Toshiba to use its collaborative platform MyDametis. Thanks to this tool, the teams visualize in real time data related to the consumption of compressed air, chilled water, heating energy and electricity throughout the plant.

Centralized data, automated readings, complete performance reports, intuitive interface: MyDametis simplifies the daily lives of teams, saves them precious time and makes them more autonomous in energy management.

Finally, an alarm module launches an alert as soon as a drift is detected on the site. The tool notably identified an abnormal level of consumption on a machine, which was replaced.