Transition Revenue Account. Revenue from the monthly bills paid by all customers goes into this account and is then used to pay the authorized costs of distribution, transmission, public purpose programs and nuclear decommissioning and other miscellaneous costs. The remaining amount of money left in the TRA is used to pay for the cost of purchasing energy from the California Power Exchange. Any money remaining in the TRA after energy purchases is referred to as the "headroom" revenue and is transferred to the TCBA to pay off the stranded costs. If the headroom revenue is negative, meaning that SCE's operating costs and purchase power costs exceed its billed revenue, then the TRA will have a negative balance, which currently cannot be transferred to the TCBA and continues to be carried forward.
The tax rate area (TRA) is a specific geographic area all of which is within the jurisdiction of the same combination of local agencies for the current fiscal year. There are over 1,100 TRAs in Alameda County, each one identified by a unique number.
Tax Rate Area. Properties are subject to taxation by a number of taxing agencies, such as the county, cities school districts and various special districts. The Auditor-Controller groups properties into Tax Rate Areas. The TRAs are numbered and appear on both secured and unsecured tax bills. The Board of Supervisors sets the tax rates that are calculated in accordance with Article 13(a) of the Constitution of the State of California.