Piller protects contact lenses production

Essilor, the world leader for corrective lenses with presence in more than 100 countries has, since 2004, relied on Piller UPS competence in power conditioning and outage protection for the company's contact lenses manufacturing plant situated close to Lisbon, Portugal.

The Piller system ensures a reliable and stable power supply by utilising a containerised UNIBLOCK DRUPS system variation to the plant room solution.

Tomás Arlegui, Managing Director Piller Ibérica said:”Compared to other space-hungry systems the Piller UBTD unit has minimal real estate requirements. Preventative maintenance has led to low service intervention undertaken on-site, making expensive and time-consuming transport to the Piller factory superfluous.

Ms. Maria João Ribeiro, Manager of Infrastructure Maintenance Essilor Lisbon stated: “Due to the high degree of reliability paired with excellent maintenance and support, the Piller UPS Unit ensured over all these years protection against common and criticable problems at a high efficiency.”

As a totally integrated system, its configuration optimises efficiency, maintainability and flexibility while using the benefits of flywheel energy storage to guarantee seamless operation between the generator and the UPS unit. A standard diesel generator provides the UNIBLOCK™ either upstream or downstream and is involved in the control of the UPS system to a powerful and flexible solution for long-term lock-up.

Kinetic energy from the POWERBRIDGE™ storage devise supports the unit to provide runtime during outages and helps stabilize the output voltage against any load steps and because it is electrically linked with the UPS output, it is able to increase or decrease speed and thus absorb or deliver power as required.


Essilor is a world’s leading ophthalmic optics company. It designs, manufactures and markets a wide range of lenses to improve and protect eyesight. Essilor allocates more than €200 million to research and innovation every year, in a commitment to continuously bring new, more effective products to market. Its flagship brands are Varilux®, Crizal®, Transitions®, Eyezen™, Xperio®, Foster Grant®, Bolon™ and Costa®. It also develops and markets equipment, instruments and services for eyecare professionals. Essilor employs 61,000 people worldwide. It markets its products in more than 100 countries and has 32 plants as well as 5 research and development centres around the world.

About Piller

Piller (www.piller.com) is a world leader in power protection technology. The company builds electrical systems for mission-critical applications worldwide. Clients include many of the world's central and commercial banks, stock exchanges and other financial institutions, as well as broadcasters, telecommunications networks, airports, government departments and co-location operators. The company was founded by the German engineer Anton Piller in Hamburg, near Hanover, in 1909. More than a century on, Piller is still headquartered and produces in Osterode and nearby Bilshausen, although today the company has subsidiaries across Europe, the Americas, Asia and Australia. The company employs over 800 people worldwide. Piller is a division of Langley Holdings PLC, the engineering group (www.langleyholdings.com) owned by British industrialist, Tony Langley.