Introduction: Improve demand side management technology to allow the commercial building demand in particular air conditioning load to be effectively controlled to minimise CO2 emissions from power stations and also help to reduce the impact of intermittency of wind generation on system performance.

Objectives: This project will demonstrate the operation of distributed demand side management as a service to the UK grid operator, providing fast response in order to reduce reliance on conventional generation for grid balancing and security and thus permit much greater penetration of renewables and aid in maximising the use of existing assets. The demonstration will focus on the control of commercial air conditioning to provide an aggregated service of some tens of MW. The value and scope for wide scale application of the technology across the UK, and with regard to transmission constraints will be demonstrated through software modelling based on the results of the practical trial.