Zahl Limbuwala founded the Data Center Specialist Group within the BCS in 2006. Since then the DCSG has attracted over 1,100 members from over 30 countries although the majority today are European based. Zahl has championed energy efficiency since the inaugural meeting of the DCSG and has played an active role in the BCS's contribution to industry best practice such as the EU Code of Conduct for Data Centres and encouraged the DCSG committee to take an active role in UK policy and advisory services.. This article is based on a presentation first made at DatacenterDynamics.