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Control, monitoring, and recordal of voltage; control, monitoring and recordal of electricity and energy; consultancy and advisory services in relation to energy use and electrical and energy safety matters; control and optimisation of voltage and electricity; advisory and consultancy services relating to energy efficiency and safety; advisory and consultancy services relating to use of energy; advisory and consultancy in the field of energy-saving; energy auditing; energy use and conservation advice and consultancy; recording data relating to energy consumption; research services in relation to control, monitoring, recordal, reduction and use of energy and electricity; scientific, technical and technological services in relation to control, monitoring, recordal, reduction and use of energy and electricity; advisory, consultancy and information services for the foregoing