TOU scaling

In IEE, you can configure a service point to have a channel set that links an interval channel to the corresponding register channel. Once the channel set is configured, the existing scaling functionality in IEE allows you to scale unscaled interval estimates against the register reads from the linked channel.

For example, in the reading container, we import 24 hours' worth of interval reads into IEE. The interval gaps fail validation, and subsequently they get estimated using whichever estimation routines had been specified. It could be numerical replacement, linear interpolation, or historical estimation.

It is possible that, after the estimation, the sum of all intervals in the reading container do not add up to the boundary register reads. These are referred to as unscaled estimates.

IEE's scaling functionality adjusts the interval estimates, so that when we total all of the intervals in the container, they would add up and match exactly with the difference between the two boundary register reads. These adjusted intervals are called scaled estimates.

Many of the more modern meters, including Itron Riva meters, support time of use (TOU). Once the meter’s TOU schedule is programmed inside the meter, it will start measuring and providing not only the total register, but also the TOU registers.

For example: we may get Rate A register for Off Peak, Rate B register for On Peak, Rate C register for Mid Peak, and so on. These TOU registers can be imported into IEE as separate register channels, one for the Total register, and separate channels for the TOU registers (Rate A, Rate B, Rate C). With the TOU Scaling option, each TOU bucket is scaled against its corresponding TOU register, potentially increasing the accuracy of the scaled estimates.