noun
rate base
Finance term for the value of a public utility's property on which it is allowed to earn a particular rate of return.
公益事業のレートベースは、料金設定の基礎となる。
The rate base of a public utility serves as the foundation for rate setting.
noun which may take the genitive case particle 'no'
rate-based
Used attributively to describe something determined by or related to a rate.
このサービスはレートベースの料金体系を採用している。
This service uses a rate-based pricing system.