The Harmonized Index of Consumer Prices category "Electricity (04.5.1)" is a classification of nondurable goods and energy that includes electricity, associated expenditure such as hire of meters, reading of meters, standing charges, etc.
This category is a subcategory of the Housing, Water, Electricity, Gas, and Other Fuels (04) and of Electricity, Gas, and Other Fuels (04.5) categories.
Information provided in the notes pertaining to HICP classifications can be found from the source at: http://ec.europa.eu/eurostat/cache/metadata/en/prc_hicp_esms.htm.
Copyright, European Union, 1995-2016, http://ec.europa.eu/geninfo/legal_notices_en.htm#copyright.
Eurostat, Harmonized Index of Consumer Prices: Electricity for Portugal [CP0451PTM086NEST], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CP0451PTM086NEST, October 20, 2017.