Eco-friendly hosting

Our hosting provider makes the following declaration

“We are committed to maintaining a negative carbon footprint. We do this in a number of ways:

  • We keep our power consumption and carbon emissions as low as possibly by using green suppliers
  • We Reduce, Reuse, Recycle all office materials
  • We work with environmental charities to contribute towards local initiatives across the UK developing and protecting woodland (contributing more that 5 times our total carbon footprint)

During 2013 we are working with the Woodland Trust to preserve and plant woodland across the UK.

We are very fortunate to be powered by a proactive eco-conscious data centre providing us with the following:

EU Code of Conduct for Data Centres

We have developed and adopted the EU Code of Conduct for Data Centres to ensure our existing data centres can deliver maximum efficiency. The Code is designed to provide best practice guidelines to reduce energy usage and improve energy efficiency in data centres.

Our data centres are certified to ISO 14001

TelecityGroup has achieved certification to ISO 14001, the international standard for Environmental Management Systems. ISO 14001 is an internationally recognised accreditation for organisations that demonstrate superior environmental management.

Member of the Green Grid

We have a history of industry collaboration, international engagement and best practice sharing through our membership of the Green Grid and other industry forums.

Carbon Trust Standard

We were the first data centre operator to achieve the Carbon Trust Standard for demonstrating a significant and ongoing improvement in carbon efficiency in the UK. This recognises our commitment to reduce our impact on climate change by cutting carbon emissions.

Carbon Reduction Commitment (CRC)

The CRC Energy Efficiency performance league table ranks over 2,000 organisations in the UK that consume more than 6,000 MWh electricity per year. TelecityGroup is ranked 103rd out of 2103 companies scored across all industries (i.e. better than 94% of companies ranked).


FTSE4Good is an index designed to objectively measure the performance of companies that meet globally recognised corporate responsibility standards. TelecityGroup’s continued membership in the FTSE4Good index acknowledges the Group’s commitment to responsible business practice.

In addition to these memberships and awards our datacentre reduced power usage with the following initiatives:

Power Usage Effectiveness (PUE)

Energy efficiency is central to our transparent approach to power charging. Our data centres are designed to achieve industry leading PUE at full design load and we pass the benefit (and lower power costs) derived from this efficiency directly to our customers.

Carbon Usage Effectiveness (CUE)

We have committed to reporting externally on a new carbon usage effectiveness measure, which we believe is an industry first. CUE captures a combined picture of the energy efficiency of operations and the carbon intensity of the energy used. It encourages individual data centres to both improve the efficiency of its systems and procedures and seek out low carbon sources of energy.

Free cooling systems

Many of our data centres use free cooling systems, which enable significant savings when the external ambient temperatures fall below a certain level. Temperature and humidity set points are optimised to optimised to ASHRAE guidelines to maximise free cooling periods.

Thermal energy storage systems

Our Southeast AMS5 data centre has the world’s largest installation of Aquifer Thermal Energy Storage (ATES). ATES is an innovative thermal technology which utilises the naturally stored groundwater found in Amsterdam’s unique river delta-based geography. The system works in harmony with the seasons by storing water in underground wells which is warmed by waste data centre heat in the summer and cooled by the lower external temperatures in the winter. This cold water is then pumped up in closed circuit system and used to cool the data centre in the warm summer months.

Hot and cold air segregation

Hot and cold air is contained in separate aisles to reduce the mixing of cooled air and hot exhaust air in data center aisles. This reduces energy consumption as cooling is more efficient.

Re-using waste heat

We extract waste heat in many of our data centres to heat office space.

Efficient lighting systems

Our data centres use motion-activated light controllers that reduce energy consumption and heat load.

Best practice advice

We have invested in technology that measures air and heat streams, which we use to advise customers on the most energy-efficient configuration of their equipment.”