Metering:

1
Metering

• Waterwise position statement
• Research on Sub Metering
• Contact gwalker_at_waterwise.org.uk

2
Metering Top line

• the most effective means to accurately recover
  costs, promote water efficiency, and achieve a
  fair charging system through tariff design
• applauds government actions to remove barriers to
  meter expansion
• acknowledges the strong commitment to meter
  expansion demonstrated by many water companies in
  their draft WRMPs
• committed to its target of full metering in
  England Wales by 2020
• in the context of a privatised industry, the
  costs and benefits of meter expansion must be
  accounted for
• encourages water companies (and government) to
  explore different tariff systems as a means of
  promoting efficient use and affordability
• welcomes the joint charging review by the
  Treasury and Defra

3
The case for full metering

• Sustainability and efficiency
• encourages both economic and technical efficiency
  in water resource management
• Fairness and affordability
• rateable value created an uneven distribution
  of charges, not reflecting consumption
• appropriate design of tariff needed
• Information
• Data collected from meters has applications
  beyond informing charges

4
Existing evidence for meterings effect on demand
5
Addressing affordability

• Safety nets
• Legislation
• Vulnerable Groups Regulations
• Water company schemes
• Tariff solutions
• Orthodox metered tariff
• Increasing Block Tariff
• with initial allowance
• lifeline allowance for water, based on occupancy

6
The role of technology

• AMR
• Reduced customer service costs
• Reduced change of tenancy costs
• Reduced time taken for routine meter readings
• Smart meters
• awareness of consumption feedback on users
  behaviour
• integrating water with energy and gas initiatives

7
Feasibility study of sub-metering in London

• International experience of sub-metering An
  analysis of four case cities to inform planning
  for domestic metering in the Greater London Area
• Soon to be available on the waterwise web site
• Case study cities Paris, New York, Melbourne,
  and Calgary.
• Experiences in implementing sub-metering programs
  were discussed based on literature, interviews
  with city authorities, local contractors, and
  researchers.
• Risks in implementing a sub-metering program were
  identified and applied to a London scenario

8
Recommendations

• Focus initial sub-metering programs on new-build
  developments
• To establish metering at a building level for
  existing stock prior to sub-metering
• the justification being that if and when sub
  meters are installed within the building,
  identifying leaks in common areas will be a
  matter of calculating a water balance between the
  service meter and total sub-meter readings.
• To pilot sub-meter retro fits and design large
  scale programs accordingly
• For the large scale retro-fits to target
  buildings which meet criteria established through
  pilot programs this will include cost
  effectiveness (plumbing aspects), affordability
  impacts, and potential for demand reduction.

9
More info

• Metering position statement
• Sub metering report
• www.waterwise.org.uk
• Contact Waterwise directly on 0207 344 1882