Stark Case Study_Oxfordshire County Council

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"Stark’s reporting platform SavenergyOnline was the crucial decider in choosing our provider. Over 70% of our annual consumption is used by Schools. It is therefore, imperative that the platform is easy to use and understand, as teachers and children use it to monitor their schools’ energy."

Deborah Wheatley, Carillion (for Oxfordshire CC)


Carillion is one of the UK’s leading integrated support services companies, with extensive construction capabilities, a substantial portfolio of Public Private Partnership projects and a sector-leading ability to deliver sustainable solutions.

A major Carillion customer is Oxfordshire County Council (OCC). The Council is responsible for providing many key services, including helping local schools to manage their energy more efficiently.

The introduction of the Government’s Carbon Reduction Commitment (CRC) Energy Efficiency Scheme in 2007 meant Carillion had a mandatory requirement to supply accurate energy data to OCC.


Search For The Right Energy Data Services Provider

To meet OCC’s CRC requirements, Deborah Wheatley, Behaviour Change Officer & Senior Monitoring & Targeting Consultant at Carillion, invited providers of energy data services to bid for the project. The successful provider was asked to implement an end to end solution, from managing the installation of Automated Meter Reading (AMR) devices across a large portfolio through to providing an energy management platform that was user friendly with easy to understand reporting tools.

Step One – AMR Installation and Accurate Data Collection

Carillion determined a need to collect accurate and reliable meter readings across OCC’s corporate and school buildings portfolio. Historically, monthly manual meter readings were being taken to monitor usage, which often meant data inaccuracies. This led to Carillion identifying the need to invest in AMR devices.

Step Two – Powerful Energy Reporting Platform

Carillion’s tender specified the need for an energy management tool that enabled Carillion’s Energy team to extract relevant reports and extrapolate complex data for further analysis. In addition, the platform had to be flexible enough to allow extra utilities to be added as the project progressed. Any platforms that did not enable the user to conduct bulk reporting and clear presentation of data were rejected.

Supplier Independent

Furthermore, it was critical that the provider was independent of energy Suppliers. Meeting this requirement meant that if the energy Supplier was changed or a replacement meter needed to be installed, all OCC’s historical energy data was retained and continued to be accessible.

Easy To Use Energy Platform

Finally, Oxfordshire County Council stipulated that the energy management tool selected must be accessible to non-energy experts, including teachers and children. It was critical to empower students to be able to contribute to their school energy saving projects and help instil energy reduction values as part of their overall education.


In year one (2012/13), the challenge for the Carillion Energy Team was to set down a baseline year. By establishing a baseline year for energy usage, Carillion were able to gauge the impact on energy reduction initiatives including those involving behavioural change programmes.

The combination of Stark’s metering, data collection and energy analytics services  met Carillion’s specification for an end to end solution. By selecting Stark, Carillion were able to effectively manage OCC’s meter portfolio, utility data and change strategies.

A full schedule of works for meter installations was devised in collaboration with the Stark project management team. A key part to success of the roll out was to develop a realistic time schedule and as the meters were rolled out across the OCC portfolio, accurate data was made available to the Carillion Energy team.


The percentage increase in utility data collected and made accessible via SavenergyOnline is shown below:

2010/11 24%
2011/12 58% (baseline year)
2012/13 76%
2013/14 79%

To date, nearly 90% of Oxfordshire County Council energy data is collected via Stark managed AMR.