volumetric tariff
[/vɒ.ljuː.ˈmet.rɪk ˈtær.ɪf/]
nounpl: volumetric tariffs
tarifa volumétrica
1. A pricing structure for utilities (water, gas, or electricity) where the cost per unit increases or decreases based on the total volume of consumption during a billing period
The water company implemented a volumetric tariff to encourage conservation during the drought.
A companhia de água implementou uma tarifa volumétrica para incentivar a conservação durante a seca.
2. A rate-setting system in which higher consumption levels are charged at progressively higher unit prices (progressive tariff) or lower unit prices (regressive tariff)
Under the new volumetric tariff, households consuming more than 50 cubic meters of water monthly face significantly higher rates.
Sob a nova tarifa volumétrica, residências que consomem mais de 50 metros cúbicos de água mensalmente enfrentam tarifas significativamente mais altas.
In Brazil, volumetric tariffs are extensively used by SABESP (São Paulo water utility) and energy distributors regulated by ANEEL to promote sustainable consumption and manage peak demand. The system reflects environmental concerns about water scarcity and energy efficiency. In Portugal, similar systems encourage resource conservation. In the USA, this concept is sometimes referred to as 'tiered rates' and is particularly common in water-scarce regions like California.
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