Accounting with SAP R/3
For utility ratemaking purposes, the adjustment to historic test year sales, revenues, or expenses to reflect differences from expected normal weather patterns.For tax purposes, normalization accounting reflects the recognition of book-tax timing differences as is customary for enterprises in general. Under normalization, the tax effect of the timing differences is recognized as deferred income tax expense. Normally deferred income tax arises because in a utility's early years taxes payable to the IRS are less than those recognized by the public utility commission for book and rate purposes.
[vgl. bear.cba.ufl.edu/centers/purc/publicat/Glossary.txt, GLOSSARY OF ACCOUNTING TERMS (15.11.2001), URL]