> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abisko.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Water

> Whole building water performance metrics & calculations.

Whole building water performance metrics are automatically calculated using a powerful analytics engine that enables users to analyze monthly and annual performance trends across meters, spaces, properties, and portfolios.

## Methodology

The section below shows how consumption data is rolled up from in-metric water meters to calculate **whole building** performance metrics.

<img src="https://mintcdn.com/abisko/MAGBwHW7ghPLZnBo/images/Group1000002837(1).png?fit=max&auto=format&n=MAGBwHW7ghPLZnBo&q=85&s=51f2001c1e68f8b7f197d93bdac6602c" alt="Group 1000002837 (1)" width="2627" height="1066" data-path="images/Group1000002837(1).png" />

<Steps>
  <Step title="All water meters associated with a space type are collected">
    * For whole building performance metrics all **in-metric** meters are used.
  </Step>

  <Step title="Meter consumption is normalized into common units & calendar months">
    Consumption entries between meter activation & deactivation dates and property buy and sell dates are broken down and reconstituted into monthly values for each meter. Data outside of these boundaries is ignored.
  </Step>

  <Step title="Monthly consumption values are aggregated by meter type & subtype">
    Meters are grouped by subtype to enable performance metrics at multiple resolutions.

    <Accordion title="Water Meter Subtypes" icon="sparkles">
      * Potable  - Mixed
      * Potable  - Indoor
      * Potable  - Outdoor
      * Reclaimed - Mixed
      * Reclaimed  - Indoor
      * Reclaimed  - Outdoor
      * Well - Mixed
      * Well - Indoor
      * Well - Outdoor
    </Accordion>
  </Step>

  <Step title="Monthly consumption data is aggregated over rolling 12-month periods">
    For every subtype, monthly normalized values are rolled up to provide monthly & annual metrics for every possible 12-month reporting period.
  </Step>

  <Step title="Values are further rolled up into portfolio-level insights.">
    Monthly and annual consumption values are aggregated across all properties to enable portfolio-level views.
  </Step>
</Steps>

Performance metrics are automatically calculated using a powerful analytics engine that enables users to analyze monthly and annual performance trends across meters, spaces, properties, and portfolios.

***

## Tracking Performance Metrics

Users can analyze water performance across meters, properties and portfolios.

### Portfolio Level

1. **Portfolio → Portfolio Trends → Water**
   * Annual portfolio-level performance and data quality trends (whole building)
2. **Portfolio → Property Trends → Water**
   * Annual property-level performance and data quality trends (whole building)
3. **Portfolio → Goals → Water**
   * Annual property-level performance trends relative to reduction targets

### Property Level

1. **Property → Performance**
   * A variety of property-level reports with monthly & annual performance trends
     * All Time Usage Trends Report (WEB & PDF)
     * Monthly Usage Comparison Report (WEB & PDF)
     * Monthly Cost Comparison Report (WEB & PDF)
2. **Property  → Annual Trends**
   * Annual property-level performance and data quality trends (whole building)
3. **Property  → Meter Exploration → Water**
   * Monthly & annual meter-level performance and data quality trends

### EXCEL Reports

2. **Portfolio → Reports → Performance**
   * Portfolio Performance & Data Quality Report
3. **Portfolio → Reports → ESPM**
   * ENERGY STAR Portfolio Manager® Gaps & Flags Report
   * ENERGY STAR Portfolio Manager® - Multiyear Performance Report
4. **Portfolio → Reports → GRESB**
   * GRESB Audit Report
   * GRESB Asset Level Spreadsheet