Method for measuring the power consumed by a plurality of electronic components of an electronic card characterised in that it comprises the following steps: - Associating a list of electronic components with a reading process, - The reading process waits for a predetermined period of time then carries out a read cycle, with the read cycle comprising the following steps: ∘ Test of the existence of a read in progress, ▪ If a consumption read by another process is in progress, then wait, ▪ Otherwise continue, ∘ Locking of a read access to at least one warehouse memory associated with at least one electronic component associated with the reading process, ∘ Acquisition of values: for each electronic component of the list of electronic components ▪ Reading of the consumption of the electronic component and recording of the value read in a consumption cache memory associated with the electronic component, ▪ Recording (1041, 1043) of a read date in a second memory in a read date cache memory associated with the electronic component, ∘ Making available of values: for each electronic component of the list of electronic components ▪ Reading of the consumption cache memory associated with the electronic component, ▪ Reading of the read date cache memory associated with the electronic component ▪ Production and recording of at least one value in a warehouse memory associated with the electronic component, ∘ Unlocking of at least the memory locked in the step of locking. - Associating a list of electronic components with a reading process, - The reading process waits for a predetermined period of time then carries out a read cycle, with the read cycle comprising the following steps: ∘ Test of the existence of a read in progress, ▪ If a consumption read by another process is in progress, then wait, ▪ Otherwise continue, ∘ Locking of a read access to at least one warehouse memory associated with at least one electronic component associated with the reading process, ∘ Acquisition of values: for each electronic component of the list of electronic components ▪ Reading of the consumption of the electronic component and recording of the value read in a consumption cache memory associated with the electronic component, ▪ Recording (1041, 1043) of a read date in a second memory in a read date cache memory associated with the electronic component, ∘ Making available of values: for each electronic component of the list of electronic components ▪ Reading of the consumption cache memory associated with the electronic component, ▪ Reading of the read date cache memory associated with the electronic component ▪ Production and recording of at least one value in a warehouse memory associated with the electronic component, ∘ Unlocking of at least the memory locked in the step of locking. ∘ Test of the existence of a read in progress, ▪ If a consumption read by another process is in progress, then wait, ▪ Otherwise continue, ▪ If a consumption read by another process is in progress, then wait, ▪ Otherwise continue, ∘ Locking of a read access to at least one warehouse memory associated with at least one electronic component associated with the reading process, ∘ Acquisition of values: for each electronic component of the list of electronic components ▪ Reading of the consumption of the electronic component and recording of the value read in a consumption cache memory associated with the electronic component, ▪ Recording (1041, 1043) of a read date in a second memory in a read date cache memory associated with the electronic component, ▪ Reading of the consumption of the electronic component and recording of the value read in a consumption cache memory associated with the electronic component, ▪ Recording (1041, 1043) of a read date in a second memory in a read date cache memory associated with the electronic component, ∘ Making available of values: for each electronic component of the list of electronic components ▪ Reading of the consumption cache memory associated with the electronic component, ▪ Reading of the read date cache memory associated with the electronic component ▪ Production and recording of at least one value in a warehouse memory associated with the electronic component, ▪ Reading of the consumption cache memory associated with the electronic component, ▪ Reading of the read date cache memory associated with the electronic component ▪ Production and recording of at least one value in a warehouse memory associated with the electronic component, ∘ Unlocking of at least the memory locked in the step of locking.