Environmental impacts from the operation of OTE in Greece

Environmental impacts from the operation of OTE in Greece

Energy Consumption

Energy consumption represents a major source of greenhouse gases (GHG) and other gases emissions contributing to both climate change and air pollution. OTE considers energy consumption (mainly fossil fuels consumption) as one of the environmental aspects of its operation, and, therefore, launched in 2007 a program for monitoring its energy consumption on a national and regional level but also at individual buildings level.

Energy consumption covers operating needs of telecommunication infrastructure, buildings and OTE owned vehicles.

In 2010, total energy consumption of OTE amounted to 1,550 TJ. Energy consumption in 2010, excluding diesel consumption in stationary engines (figures for the period 2007 – 2009 refer to planned tenders for supplies, while figures for 2010 concern actual consumption), increased by 6% compared to 2009 (from 1,450 TJ in 2009 to 1,535 TJ in 2010). More specifically:

  • Fuel consumption for space heating in 2010 (heating diesel and natural gas) reduced by 18% compared to 2009 as a result of space consolidation and the higher average temperatures that prevailed in 2010 compared to 2009 (e.g. heating degree-days in Athens for 2010 were about 10% lower compared to 2009 heating degree-days).
  • Fuel consumption for OTE owned vehicle fleet increased by 4% compared to 2009.
  • Electricity consumption makes up the largest part of the total energy consumption of OTE. Total electricity consumption of OTE increased by 7% (1,380 TJ) compared to 2009. This trend is mainly attributed to:
    • The increase of the services provided that in terms of data transferred was about 20% reaching 182 Gbit/s in 2010.
    • The increase by 120% of the average access speed to the broadband network, which at the end of 2010 reached 9.43 Mbps compared to 4.28 Mbps at the beginning of 2010.
    • The increased co-installation with telecommunication operators. A total of 859 urban centers nation-wide offered co-installation services in 2010 from 689 at the end of 2009.
    • The higher average temperatures prevailed in 2010 compared to 2009 (e.g. cooling degree-days in Athens for 2010 were about 9% higher compared to 2009 cooling degree-days) that resulted in increased cooling needs.

The stemming of electricity consumption growth rate and its eventual transformation to a reduction of the electricity consumption to the extent that is technically and economically feasible, represent the key priorities of OTE.

(a) Data on diesel for stationary engines refer to planned tenders for supplies for 2007 - 2009 and actual consumption for 2010.
(b)  An amount of 1.6 TJ for district heating is included in electricity consumption for 2010.

Direct primary energy consumption for 2010 (excluding electricity consumption and district heating) is estimated at 168 TJ, and indirect primary energy consumption (by allocating to OTE the energy consumption needed for the production of the electricity and the district heating consumed by OTE) is estimated at 3,244 TJ.