Applicable GRI indicators

EN2 In Spain, in 2009, about 43 t of PCB-contaminated oil (38.2 t from hydro generation and the remaining amount from electricity distribution) were decontaminated and reused.

EN1  EN3 In the energy mix, biomass accounts for 40 ktoe, which are consumed in three
thermal power plants (Energía de la Mancha – Castile-La Mancha, Aguas de Jerez – Andalusia, Garraf - Catalonia), two with alternative engines and one with condensing steam. The first plant uses solid biomass (olive stones); the second one uses biogas from treatment of waste waters; and the third uses landfill gas.
In 2009, total net electricity generation from the three power plants amounted to 127 GWh.

EN4 In 2009, the primary electricity consumed for fuel storage & handling, gas distribution, mining activities, real-estate & service management was equal to 73,440 GJ (20.4 GWh).
For grid operation, the distribution grid used 52,452 GJ (14.6 GWh) of electricity.

EN5 Upgrades, new technologies and efficiency gains increased the efficiency of thermal and hydro power plants. In the past five years, Endesa succeeded in saving 2.2 million toe of primary energy (92,109 TJ). Ongoing projects will save another 150,000 toe (6,280 TJ).

EN6 Through its Energy Efficiency Plan (PE3), Endesa Energía promoted value-added services for efficiency enhancement and deployment of renewables. The plan involves:

  • development of new products (banks of capacitors for low-cost power-factor correction and variable speed drives to optimize the performance of electric motors, etc.);
  • the Plan Ilumina, a service offered to small businesses and offices to assess the renovation or installation of lighting systems with a high saving potential (of up to 80%);
  • supply and installation of solar photovoltaic and thermal facilities;
  • awareness actions aimed at promoting smart and efficient power usage; these actions include: wide advertising campaign on efficiency; creation of an Internet portal (Twenergy); and use of YouTube as a communication tool.

Endesa encourages the responsible and efficient use of energy by offering a number of applications: solar thermal, solar photovoltaic, air conditioning and heat pumps, radiators with heating control systems, condensing boilers, banks of capacitors (available for business customers only), circuit breakers with pick-up (automatic reset) and voltage stabilizers.

EN16 Specific CO2 emissions from thermal generation were down by 1.5% (from 810 g/kWh net in 2008 to 798 net in 2009) as a result of investments to increase the efficiency of the generating mix.

EN18 The overall CO2 emissions avoided in 2009 amounted to 26 million t (8 thanks to electricity generation from renewables and 18 to nuclear power generation).
Upgrade projects, use of new technologies and efficiency gains displaced so far 10.7 Mt of CO2 emissions per year, while ongoing projects will displace900,000 t. Endesa holds a portfolio of 52 CDM projects, corresponding to over 82 Mt of reduction of CO2 emissions.
In line with the Enel Group’s guidelines, Endesa is ready to catch the opportunities offered by the fight against climate change under a specific strategy which is outlined in its 2008-2010 strategic sustainability plan. With this plan, the company intends to respond to global challenges and to supply electricity at reasonable costs through a new, environmentally-sustainable,
efficient, low-CO2 generating mix.
One of Endesa’s programs is focused on the acquisition of a leadership position in development of technologies to cut down CO2. With this program, the company expects to meet the requirements of the European Union’s energy policy specified in the Climate & Energy Package, to promote a new regulatory framework and develop a project of carbon capture & storage (CCS) at its sites.
Endesa formulated five strategic programs and is engaged in:

  • actively participating in development of renewables;
  • being in the forefront of technological innovation to reduce CO2 emissions and change the energy model; this implies the development of one of the twelve European CCS projects by 2015 and, by 2012, the installation of 3,600 MW of combined cycles and high-efficiency technologies capable of covering peak power demand, and 400 MW of pumped-storage hydro power plants (thus increasing the contribution of this source by 30%) and gas-turbine power plants;
  • capturing the opportunities offered by energy efficiency and CHP generation in all of its business activities;
  • taking the lead in developing a sustainable transport model based on electric vehicles;
  • creating a portfolio of CDM projects enabling the company to strengthen its position in this market and also accrue surpluses of emission credits;
  • developing the technology of hydrogen as a fuel in thermal power plants.

The following results were achieved:

  • in December 2009, the European Commission approved the CIUDEN (Fundación Ciudad de la Energía) - Endesa project of carbon capture & storage through oxy-combustion in circulating fluidized beds (called OXYCFB500); this project will involve the construction of a commercial fossil-fired power plant;
  • at the La Pereda power plant (Asturias), an experimental carbonationcalcination project is under way (2008-2011); with this activity, Endesa intends to develop a carbon capture process which may be applied to new or existing power plants at low costs;
  • at the Compostilla power plant (León), an experimental project (2006-2009) is under way to capture carbon by chemical absorption; the goals of the project are design, construction, installation, start-up and operation of an experimental facility using this technology, as part of module 4 of the CENIT CO2 (Consorcio Estratégico Nacional en Investigación Técnica del CO2) project; development and assessment of new chemical absorbents more resistant to
    flue-gas pollutants are also planned.

EN19 The only ozone-depleting substance is represented by chlorofluorocarbons, which are used in air heating & conditioning systems. No leaks from these systems were recorded in 2009.
Freon was replaced in the Ascó and Vandellòs nuclear power plants.

EN20 Between 2008 and 2009, specific emissions of SO2 and particulates were down by 14% and 12%, respectively, thanks to the installation of desulfurizers (which also abate particulates) and, for SO2, also to utilization of a higher amount of low-sulfur fuel oil.
The trend of radioactive emissions is due to: i) the natural deterioration (started in 2007) of fuel elements in the Garoña power plant (Castile and León); and ii) its BWR technology (Boiling Water Reactor), different from the one of the other power plants (PWR - Pressurized Water Reactor). Indeed, the type of reactor affects the isotope distribution of gaseous effluents and the amount of isotopes produced.

EN21 Specific emissions of tritium in waste waters was down by 24% on 2008, reaching 2.55 kBq/kWh.

EN22 A high percentage of recovery of gypsum from desulfurization (82%) and of coal and brown-coal ash (roughly 90%) was recorded in 2009. Specific production of coal and brown-coal ash fell from 70 to about 51 g/kWh net (from coal) from 2008 to 2009.

EN26 As part of the program of landscape enhancements in hydro power generation sites (large hydro power plants), obsolete structures and buildings were demolished, waste from demolition was separately collected and the recovered space was finally restored. In 2009, these activities were carried out in 17 power plants: 6 belonging to the Ebro Pirineos group of power plants and 11 to the Sur group of power plants. The hydro plants of the latter group renewed their ISO 14001 certification; these plants also use biodegradable oils and greases.
Within the Aigüestortes i Estany de Sant Maurici national park (Catalan Pyrenees), an overhead power line was removed thanks to the installation of a hydraulic microgenerator supplying local consumers. Moreover, the waste water release control systems were improved.

Renewable power and CHP installations of small size are designed with the binding goal of mitigating the environmental impact, by harmonizing them with the local orography and ecosystems and minimizing earth works. Among environmental offsets, mention may be made of reintroduction of vegetable species, reforestation or support for activities of conservation of species of biological interest. In many wind farm sites, environmental surveillance programs help minimize impacts on the avian fauna.
The organizational unit supervising the Alto Casillas wind farms entered into an agreement for the management of the municipal landfill with the municipality of Villahermosa (Castile-La Mancha).

EUFER reduced its consumption of office paper by 43%. It also planned to cut the production of some hazardous special waste items (non-chlorinated mineral oils for hydraulic circuits and packaging materials containing or contaminated by hazardous substances) by 3%. Moreover, it extended the ISO 14001 certification to its wind farms of Belmonte, Viravento, Caldereros, Cabo Vilano, to the CHP plant of Eneralco and to its offices of Madrid, A Coruña, Seville, Extremadura and León.

Many projects of environmental enhancement also concern nuclear electricity generation. The most important ones – at the Ascó and Vandellòs power plants – were the replacement of the main transformers containing PCB-contaminated oil, the elimination of freon and the reduction of the volume of radioactive waste. At Vandellòs, also the radiation monitoring system was replaced.

As regards thermal power generation, the thermal power plant of As Pontes was EMAS registered (the plant is also ISO 14001- and ISO 9001-certified). For this plant, the initial environmental analysis was updated to accommodate the plan of control of the new landfill for flyash & similar waste.
At the Compostilla plant (León), investments were made on reduction of SO2 and NOX emissions and landscape integration. The hazardous waste landfill was closed down and analyzers to monitor emissions were purchased.
The Candelaria power plant (Tenerife) went on with its project of mitigation of noise immissions.
The Litoral de Almería power plant (Andalusia) gained the EMAS registration.
In the same plant: the desulfurizer of unit 1 was put into service; the wet ash collection system was replaced with a dry one; and the installation of low-NOX burners and the upgrade of the turbine were completed.
The Jinamar power plant (Gran Canaria), which gained the ISO 14001 certification, reduced emissions of particulates, SO2 and NOX thanks to improvements to electrostatic precipitators, to the use of magnesium oxide as an additive and to the combustion process. A factor which contributed to CO2 emission reduction was the reduction of the plant’s own consumption; this result
was obtained by replacing lighting appliances with more efficient ones and by developing a responsible consumption program.

Electricity distribution

In 2009, the cooperation agreement between the Government of Aragon and Endesa Distribución was implemented. The agreement covers the development of power-line projects with a view to mitigating or eliminating collision and electrocution risks to birds. The 2009 share of the investment was equal to about € 188,000.
In Aragon, Endesa Distribución also obtained the confirmation of its ISO 14001 certification.
In the same region, sound pressure levels were measured near six substations installed in urban areas; the results of this activity were reported in documents certifying their compliance with the legislation or identifying noise pollution criticalities.
In Catalonia, Endesa Distribución took other environmental initiatives: installation of an electric arc safety device in the Xirgu substation; cooperation with CTFC (Centre Tecnològic Forestal de Catalunya) to mitigate impacts on the avian fauna in the Els Plans de Sió area; and improvements to hazardous substance storage areas and containers.
In March 2009, Endesa Distribución extended the ISO 14001 certification for its environmental management system to all of its assets.