How will widespread use of Display Energy Certificates lead you to zero carbon operation?

Energy Show – National Motorcycle Museum, Birmingham – 8th September

The display certificate requirements from the EPBD2.
Likely implementation for the UK – policy from CLG.
Current assessment of the results for the public sector.
Using the DECs to describe the performance of an estate of buildings [profile of A, B, C, etc].
Using this profile to describe performance improvements over a period of time [profile will generally move towards A, B, C grades].
Comparison of EPC rating with DEC rating – a well designed building that does not perform in practice.
What can be done to correct that imbalance and make savings.
Using DECs [based on above] to secure support for energy efficiency policies from the board/management team.