Apparatus for processing data comprising: processing circuitry (6, 8, 10) configured to perform processing operations; a temperature sensor; energy management circuitry for managing power consumption of said processing circuitry, said energy management circuitry comprising manager energy interface circuitry configured to communicate energy management signals with said processing circuitry, the energy management circuitry comprising energy controller circuitry configured to receive a temperature input from the temperature sensor and to compensate the energy management signals in response to the temperature input; and consumer energy interface circuitry (14, 16, 18) coupled to said processing circuitry and configured to communicate energy management signals with the energy management circuitry; wherein said energy management signals communicated from the consumer energy interface circuitry to the energy management circuitry include: (i) a static power consumption signal indicative of a level of static power consumption of said apparatus independent of processing operations performed by said processing circuitry and generated from a signal indicating a current static mode of operation of the processing circuitry, the energy management circuitry being configured to compensate said static power consumption signal to be independent of an operating temperature of said apparatus; and (ii) a dynamic power consumption signal indicative of a level of dynamic power consumption of said apparatus dependent upon processing operations performed by said apparatus and generated from a signal indicating a current processing activity of the processing circuitry; in which the energy controller circuitry is configured to respond to said energy management signals by changing one or more of: (i) a frequency of an operating clock signal supplied to said processing circuitry when said processing circuitry is performing processing operations; (ii) an operating voltage supplied to said processing circuitry when said processing circuitry is performing processing operations; and (iii) an operating voltage supplied to said processing circuitry when said processing circuitry is not performing processing operations. processing circuitry (6, 8, 10) configured to perform processing operations; a temperature sensor; energy management circuitry for managing power consumption of said processing circuitry, said energy management circuitry comprising manager energy interface circuitry configured to communicate energy management signals with said processing circuitry, the energy management circuitry comprising energy controller circuitry configured to receive a temperature input from the temperature sensor and to compensate the energy management signals in response to the temperature input; and consumer energy interface circuitry (14, 16, 18) coupled to said processing circuitry and configured to communicate energy management signals with the energy management circuitry; wherein said energy management signals communicated from the consumer energy interface circuitry to the energy management circuitry include: (i) a static power consumption signal indicative of a level of static power consumption of said apparatus independent of processing operations performed by said processing circuitry and generated from a signal indicating a current static mode of operation of the processing circuitry, the energy management circuitry being configured to compensate said static power consumption signal to be independent of an operating temperature of said apparatus; and (ii) a dynamic power consumption signal indicative of a level of dynamic power consumption of said apparatus dependent upon processing operations performed by said apparatus and generated from a signal indicating a current processing activity of the processing circuitry; (i) a static power consumption signal indicative of a level of static power consumption of said apparatus independent of processing operations performed by said processing circuitry and generated from a signal indicating a current static mode of operation of the processing circuitry, the energy management circuitry being configured to compensate said static power consumption signal to be independent of an operating temperature of said apparatus; and (ii) a dynamic power consumption signal indicative of a level of dynamic power consumption of said apparatus dependent upon processing operations performed by said apparatus and generated from a signal indicating a current processing activity of the processing circuitry; in which the energy controller circuitry is configured to respond to said energy management signals by changing one or more of: (i) a frequency of an operating clock signal supplied to said processing circuitry when said processing circuitry is performing processing operations; (ii) an operating voltage supplied to said processing circuitry when said processing circuitry is performing processing operations; and (iii) an operating voltage supplied to said processing circuitry when said processing circuitry is not performing processing operations. (i) a frequency of an operating clock signal supplied to said processing circuitry when said processing circuitry is performing processing operations; (ii) an operating voltage supplied to said processing circuitry when said processing circuitry is performing processing operations; and (iii) an operating voltage supplied to said processing circuitry when said processing circuitry is not performing processing operations.