90.1-2019 For more detailed analysis of utility rates, the sections below may be used. This section defines the approach for using tariffs, specifying energy and demand charges, ratchets, etc. 4.2.1 Utility Costs: Tariffs 4.2.2 Utility Costs: Charges 4.2.3 Utility Costs: Ratchets Book traversal links for 4.2 Custom Energy Costs ‹ 4.1 State Average Energy Costs Up 4.2.1 Utility Costs: Tariffs ›