Keysource & Energy Optimisation Study (EOS) Service
Data Centre Energy Efficiency Project of the Year
Entry Description
Keysource adopted the PUE metric in 2007, as members of the green grid. Since then, the metric has
been used to help our customers consider options when designing new facilities and benchmark
opportunities within existing live environments.
In response to an evolving sustainability landscape and regulation requirements, Keysource designed
its Energy Optimisation Study (EOS) in 2020 to help companies optimise the energy efficiency of their
data centres, saving them money and reducing their carbon.
In addition, EOS provides relevant and accurate data that can be used for mandatory regulatory
reporting requirements such as Streamlined Energy and Carbon Reporting (SECR) and helps
companies to avoid costly penalties. It is completely non-intrusive and has an important commercial
focus to ensure opportunities can be easily understood and approved with a robust business case,
often identifying opportunities with a Return on investment (ROI) of under six months.

How does it Work?
Subject to your sources, the Datacentre sector accounts for between 1-2% of all global electricity
usage and there is continued pressure for operators to be more efficient. However, sometimes, the
risk of impacting company brand, reputation or commercial penalties can be too high to implement
any change for efficiency gain, if not carried out in the right way.
EOS has been undertaken for multiple existing and new clients since its inception. In simple terms we
gain deep understanding of what the facility looks like, how it operates and its immediate and future
requirements. Once complete we look at key wins for efficiency, lower operational cost and reduction
of carbon. Given the business-critical nature of the environments, any opportunities must present zero
or acceptably low risk and not compromise the operation and resilience of the facility, both during and
post any change.

The study scope ranges subject to customers’ ability to influence or change, however common
activities include:
A Cooling redundancy and technology assessment,
An understanding of cooling controls,
UPS topology, efficiency, and settings,
Airflow management review
Best practice assessments.

The Keysource EOS benefits the customer with a level of detail which clearly presents the
implementation plan, along with any associated risk and dependencies. This provides important
operational comfort that compelling numbers are backed up by real feasible plans.
Overall we have saved businesses on average 14% on carbon emissions and ongoing power costs
through this service alone in a mix of small/medium facilities to multi megawatt colocation facilities.

Customer Case Study
One of our first clients was Digital Realty Trust (DRT), the leading global platform provider for centres
of data exchange, interconnection, and colocation solutions who appointed us to undertake an EOS to
understand the opportunities for optimising a Data Hall for a key client, with the objective of reducing
total power consumption and operational expenditure.
The EOS survey was undertaken in two phases. Phase One included us undertaking an assessment
and identifying/quantifying opportunities for customer consideration. This included a number of
opportunities across the infrastructure which equated to 20% - 30% operating efficiency savings. For
Phase Two we produced planning documentation, for customer and operator approval, and
implemented changes including validation reporting. Importantly this phase demonstrated that the
changes would be made without risk to the availability or resilience levels.

Following the implementation phase additional performance measures were made which confirmed
the energy optimisation achieved a reduction of circa 100 kW of power equivalent to 876,000.00
kWh/year in energy and savings £10,800 per month.

“The Keysource Energy Optimisation Service has provided a detailed view of what is possible
with regards to energy savings in a number of our client halls. Through the execution of this
optimisation we expect to see significant savings of around 15% of Operating costs, carbon
emissions and energy. “
Alex Gibson, Data Centre Manager, Interxion/DRT