1. Identifying relationships between air temperature and domestic water consumption using smart metering
Maria Xenochristou
Prof. Zoran Kapelan
Prof. Slobodan Djordjevic
Prof. Jan Hofman

2. Case study Wessex Water: 2,000 properties since 2014
Smart demand metering data at half-hourly intervals
Household characteristics
Socio-economic data
Met office / NOAA:
Air temperature
Precipitation
Relative humidity
garden size, rateable value, and council tax band, postcode, occupancy rate, metering status
ACORN, groups and types
National oceanic and atmospheric administration

3. Results: Relationships between water consumption and the weather
Methodology: systematic approach, i.e. varying
different aggregations of properties, based on household characteristics and socio-economic data.
Statistically significant Correlation
Stronger Correlation for:
Certain times in the day (mornings and evenings) when water is typically used for gardening
Certain types of properties (properties on a meter with gardens).
Weekdays, metered, gardens

4. Results: Relationships between water consumption and the weather
Methodology: systematic approach, i.e. varying
different aggregations of properties, based on household characteristics and socio-economic data.
Statistically significant Correlation
Stronger Correlation for:
Certain times in the day (mornings and evenings) when water is typically used for gardening
Certain types of properties (properties on a meter with gardens).
Weekdays, metered, gardens

5. Conclusions Future Work Correlation increases for Test additional
Working days
Evenings
Summer & Spring
Large & Medium Gardens
High & Medium Rateable Value
Affluent residents
Medium occupancy
Metered Properties
Further aggregation of data
For example: ACORN, council tax band, rateable value
Observe at what level the inherent randomness of water use that you would identify for an individual HH disappears
Decision tree classifier that determines which are the most influencing factors
Weather variables
Temporal & Spatial scales
Data Mining techniques