• When processing payloads using middleware implementations, keep the number of devices to 1,000 per file for optimum usage and event processing through Oracle Service Bus. A lower number of devices, per file, will take more time for processing. A higher number of devices, per file, leads to high growth in garbage collection leading to waits and results in lower throughput. Please note, the optimum number of transactions per file may vary by head-end system.

• Initial measurement payloads should have very selective criterion to get to the exact measuring component (MC). In an ideal case, it should be the MC identifier along with device serial number. If this is not provided, then the UOM/TOU/SQI configured on the MC type is used to retrieve the exact business object (BO) from the Service Provider which might have the same values for multiple channels.

• Populating the raw data section of the IMD record will reduce overall throughput. Avoid retaining “raw” data in Smart Grid Gateway payload processing whenever possible.

• Payload processing (in which usage and event data are loaded into the system) should be run separately from measurement processing (in which VEE is performed and final measurements are created). Do not run these processes simultaneously.

• Load initial measurements and perform VEE processing every 4 to 6 hours to optimize performance.

• The duration of individual initial measurements (IMDs) within a payload should be no shorter than the time elapsed between when payloads are collected and delivered (with a minimum of 4 to 6 hours per initial measurement). For example if your system is collecting and delivering measurements three times a day, the duration of individual initial measurements should be approximately eight hours.

• Avoid loading large numbers of initial measurements for a single device configuration in a single payload.