Relevance
Energy Statistics are compiled on
the basis of the data collected under the standard collection cycles as
directed by Eurostat. The monthly data consists
of crude oil, oil products, solid fuels and electricity, covering mainly the
supply side. Annual data on oil
products, electricity, and renewable energy covers the full spectrum of the
energy balances positions from supply through transformation to final energy
consumption by sector and fuel type. Also,
annual and monthly imports and exports data of various energy carriers by
country of origin and destination, as well as infrastructure information is
compiled.
The relevant energy data
collections are regulated since 2008 with the entry-into-force of the
Regulation (EC) No. 1099/2008 of the European Parliament and of the Council of
22 October 2008 on Energy Statistics and also Regulation (EU) 2016/1952 related
to electricity price statistics.
Methodological
description
Both
the monthly and annual data are collected from various administrative sources,
including the Regulator for Energy and Water Services (REWS), Enemalta Ltd, the
Energy and Water Agency, and the Automated Revenue Management Services Ltd
(ARMS).
Data
is compiled and disseminated through three annual questionnaires (Joint
Eurostat; International Energy Agency (IEA); and the United Nations Economic
Commission for Europe (UNECE) questionnaires), and six monthly questionnaires
(four Eurostat questionnaires; and two questionnaires common with other
international organisations).
Accuracy and reliability of data
In
order to verify the accuracy of the data collected, during the compilation of
all energy statistics outputs, consistency checks are done both with past data
and between data arriving from different sources. All energy data that fails to pass
from these consistency checks is flagged and re-sent to data providers together
with a request to submit either revised data or to justify the data.
Timeliness and punctuality of data
An annual news release on electricity generation
is published on the NSO’s website during the month of October following the
reference year. This is released as scheduled in the Advance
Release Calendar.
Annual data
regarding oil, electricity and renewable energy for year t are sent to Eurostat
in t+11 months. Monthly data on oil and
electricity are sent 55 days after the end of the reference month.
Accessibility and
clarity of data
A quality report
on the data transmitted is requested by Eurostat every five years. A
similar report is produced at a national level and is available on the NSO’s
metadata website.
Coherence and
comparability / consistency of data
The data collected on energy statistics can be compared with the data of other
European Union member states since all countries make use of the joint
questionnaire and the prescribed methodology. Such data is also comparable from reference year 2008, that is, from the first time data related to energy started being collected in a harmonised manner.