SLIDE 17 Alliance for Water Efficiency 9/9/2014 Financing Sustainable Water Webinar 17
Introduction to Rate Setting
Budget‐based water rates Marginal/Incremental Cost
pricing
Volumetrically‐based Fixed
Charges
“Value of Service” pricing Policy‐based rates Drought pricing Additional “innovative” rate
structures
$- $0.50 $1.00 $1.50 $2.00 $/Unit Consumption Graph 2 Declining Block Consumption Charge
A DECISION FRAMEWORK FOR EFFICIENT WATER RATE DESIGN
Primary Choice: Options Implications
through rates and charges External tax support Some revenues sources from outside the water rate structure. No external tax support Recovers all costs through rates and charges attached to water service.
- 2. Differentiate rates and
charges by customer class Same rates for all customers Recovers revenues under a single rate structure for all customers Class-based rates Recovers revenues through different rate structures for different groups of customers (such as residential, commercial, and industrial).
component of the customer bill No fixed charges Recover all revenues through variable charges. Same fixed charge for customers Recovers metering, billing, and other
- charges. Reflects no cost variations
based on customer-class distinctions. Different fixed charge for customers Reflects cost variations in metering, demand, billing, and other factors based on meter size or other customer-class distinctions.
(Peak Pricing) Year-round rates No variation in rates by season of use. Seasonal rates Rates that vary for two or more time periods within a year, reflecting seasonal variation in costs.
- 5. Vary rates by block of
water usage (Block Rates) Uniform rate The rate does not vary with usage for all customers or all customers within a class (uniform rates by class). Block rates Requires a determination of: (1) the number of blocks,
Decision Framework for Efficient Rates