Demand Results

Demand results cover requirements by and allocations to demand sites. The following reports are available:

Water Demand

The requirement at each demand site, before demand site losses, reuse and demand-side management savings are taken into account.

Supply Requirement

The requirement at each demand site, after demand site losses, reuse and demand-side management savings are taken into account.

Supply Delivered

The amount of water supplied to demand sites, listed either by source (supplies) or by destination (demand sites). When listed by destination, the amounts reported are the actual amounts reaching the demand sites, after subtracting any transmission losses.

Unmet Demand

The amount of each demand site's requirement that is not met. When some demand sites are not getting full coverage, this report is useful in understanding the magnitude of the shortage.

Coverage

The percent of each demand site's requirement (adjusting for demand site losses, reuse and demand-side management savings) that is met, from 0% (no water delivered) to 100% (delivery of full requirement). The coverage report gives a quick assessment of how well demands are being met.

Reliability

The percent of the timesteps in which a demand site's demand was fully satisfied.  For example, if a demand site has unmet demands in 6 months out of a 10-year scenario, the reliability would be (10 * 12 - 6) / (10 * 12) = 95%.

Demand Site Inflow and Outflow

The mass balance of all water entering and leaving one or more demand sites. Inflows (from local and river supplies) are represented as positive amounts, outflows (either consumed or routed to wastewater treatment plants, rivers, groundwater nodes and other supplies) as negative amounts.

Instream Flow Requirement

The prescribed minimum flow requirement (given in units of a volumetric flux) for social or environmental purposes.

Instream Flow Requirement Delivered

The amount of water supplied to flow requirements listed by destination.

Unmet Instream Flow Requirement

The difference between the instream flow requirement and the amount actually delivered.

Instream Flow Requirement Coverage

The ratio of the amount delivered divided by the flow requirement.

Flow Requirement Reliability

The percent of the timesteps in which a flow requirement's demand was fully satisfied.  For example, if a flow requirement has unmet demands in 12 months out of a 10-year scenario, the reliability would be (10 * 12 - 12) / (10 * 12) = 90%.

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