Abstract

Hydropower-based electricity production provides approximately 33% of renewable energy in Greece - an activity, however, associated with adverse environmental effects on watercourses. Therefore, it should be considered as a key factor of water management programs ensuring safety and optimising environmental performance of hydropower facilities in accordance to Greece’s obligations towards European Union (EU) water policy. Water Framework Directive (WFD) was created by the EU in order to help member states to protect and improve the status of water bodies and was incorporated in Greek legislation by Law 3199/2003 . Within the scope of this study, we assessed both Hydroelectric power generation and Water Resources Management in Greece and we recorded the current status of the EU Water Framework Directive implementation in this field. Given that social-ecological systems emphasise the link between people and the ecosphere, we investigated possible conflicts that arise between hydropower-related renewable electricity production and water courses conservation, according to both national and EU legislation. We also studied the tools that WFD provides in order to solve potential problems, maintain economic viability and ensure good ecological status between hydropower utilisation and water protection in the face of increased demands to a more effective and sustainable management of environmental resources.

Highlights

  • Climate change is already affecting water availability

  • Today hydropower plants are contributing towards European Union (EU) energy targets for 2020-2030 playing a key role in Renewable Energy Directive implementation and CO2 emissions reduction as they do not pollute the air like power plants

  • The approach that we developed is organised in three steps: 1) Hydroelectric power generation in Greece (Section 3.1) 2) definitions of hydropower utilisation and water protection at Water Framework Directive (WFD) 2000/60 (Section 3.2); 3) designation of heavily modified water bodies within the context of WFD implementation in Greece (Section 3.3)

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Summary

Introduction

According to the European Environmental Bureau’ s (EEA) report, “Northern Europe has generally become wetter in recent decades (up to 70mm per decade), whereas southern Europe has generally become drier (up to 90mm per decade). Today hydropower plants are contributing towards European Union (EU) energy targets for 2020-2030 playing a key role in Renewable Energy Directive implementation and CO2 emissions reduction as they do not pollute the air like power plants. They have many negative effects on biodiversity, river flows and aquatic communities as they cause changes in river morphology and riverine habitats

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