University of Vaasa - Vaasan yliopisto

Table 1. Type and amount of environmental reporting
Number of pages per
year
Companies Type of document 2005 2006 2007
Acciona Energía Sustainability report 105 171 203
Endesa (Spain & Portugal) Sustainability report 140 156 188
Gamesa Energía Rest Annual Report 131 341 329
Gas Natural Corporate Sustainability
Report
163 226 148
Hidrocantábrico Energía Sustainability report 96 124 112
Iberdrola Sustainability report 295 236 271
Unión Fenosa Generación Sustainability report 71 160 214
Verifiability and Management Systems
641
This sector shows us the growth in audits and verification processes in environmental
performance that has been made recently, probably due to increased implementation
of environmental management systems, which are later certified to international
standards, mainly ISO 4001 and EMAS (Llena et al. 2007). It can be seen that there
are significant differences concerning information on environmental management
supplied by the companies. With some, there is a total lack of information, while
others show an increase in certification of the system. Information is also given that
has little relevance to environmental management in some cases, such as H-C and
Gas Natural, proving their scant interest in the issue.
Table 2. Environmental management system
Companies 2005 2006 2007
Acciona - - -
86.69% 87,50% 89,18%
Endesa
production production production
76.5% 100% 100%
Gamesa
windfarms windfarms windfarms
Gas Natural 11 companies 11 companies 11 companies
Hidrocantábrico - - 11 installations
Iberdrola 24 certifications 29 certifications 40 certifications
Unión Fenosa 67% power 93% power 98,30% power