Session4.3 tiwag martin schletterer

Hydropower and Water Framework Directive
Outputs from the 2nd Workshop on Water Management, WFD & Hydropower (Brussels September 2011)

Multi criteria analyses (e.g. EIA)

Aosta 24.05.2012

Inhalt/Agenda

I. Hydropower in the framework of renewable energies

II. Study on hydropower (DG Environment)

III. Facts from Austria

IV. MCA – Construction of new hydropower plants (EIA)

V. Conclusions

Aosta 24.05.2012 Folie 2 Dr. Schletterer (TIWAG) Hydropower & Water Framework Directive

Hydropower in the framework of renewable energies

 Renewable energy in the EU-27
- 10 % of energy
- 16 % of electric consumption (60 % hydropower)

 Renewable Energies Directive: important role of renewables for achieving
the objective of reducing greenhouse gas emissions whithin the EU (potential
for greenhouse gas reductions of about 12% from 2005 to 2020)



 Nowadays hydropower is more than 50% of RES-electricity
 will be around 30% in 2020

 Moderate increase in hydropower (2010 – 2020):  Around 25 TWh (8%)
consisting of 17.5 TWh large, 6.0 TWh medium and 1.5 TWh small hydro

Source: DG Energy (EC)



Source: Kampa et al. 2011 (Issue paper, EC)



Current electricity production from hydropower and from
renewable energy sources as a percentage of total national
electricity production (%)




Total national electricity production from hydropower as a
percentage of total electricity production from renewable
energy sources (currently and in 2020) (%)



Study on hydropower (DG Environment)

 Objectives: understanding of the
interlinkages between WFD and
hydropower development with the
aim to support integration
 Overview of current and future contribution of the
HP sector for achieving the RES targets
 Overview of environmental impacts of HP
generation and influence of environmental
legislation,
 Overview of strategic planning approaches in EU
Member States



Electricity production from renewable energy sources (left graph)
and hydropower (right graph) currently and in 2020 (GWh/y)




Legal requirements for environmental improvement




Percentage of HMWB in relation
to total number of surface water
bodies (%)

Percentage of HMWB designated
due/linked to hydropower in
relation to total HMWB (%)




Legal requirements for environmental improvement




Implementation of environmental improvement requires
monitoring:

-linking existing requirements to WFD requirements for
GES/GEP achievement

- Monitoring and data improvements, e.g. with respect to the
effectiveness of fish passes

- further technical research

- Hydropeaking mitigation  R&D projects running

-…



 Some of the major impacts of hydropower stations:
 hydropower has been identified as one of several drivers for
hydromorphological alterations
 the barrier function together with damage and mortality of fish species
 modified flows and habitat conditions
 changed sediment patterns
 the changes in nutrient and physico-chemical conditions

Many of these impacts can be mitigated with
restoration and mitigation measures.



 Mitigation measures need adaption to local conditions (case-by-case)
 installation of fish passes + fish protection facilities
 setting minimum ecological flow requirements
 mitigation of disruption of flow dynamics,
 the attenuation of hydropeaking
 sediment and debris management to avoid flooding and degradation due to
downstream erosion


Facts from Austria

Source: Austrian Federal Ministry of Agriculture,
Forestry, Environment and Water Management


Construction of new hydropower plants (EIA)

Bundesgesetz über die Prüfung der
Umweltverträglichkeit
(Umweltverträglichkeitsprüfungsgesetz 2000 idgF kurz UVP-G)

„Austrian EIA-law“

 assessing direct and indirect effects of a
project, concernign following topics….



Basic dataset
 Geology  Human
 Hydrogeology  Animals, Plants and their habitats
 Natural hazards – Animals and their habitats
– Plants and their habitats
 Traffic
– Limnology
 Soil
 Water
Factors changed by the project – Surface waters
 Noise – Groundwater
 Vibrations  Air & Climate
 Air pollution  Landscape
 Electromagnetic fields  Cultural and infrastructural elements
 Hydrology
 Bedload



RVS 04.01.11, Umweltuntersuchung

 www.fsv.at (Österr. Forschungsgesellschaft Straße – Schiene – Verkehr)

 Beurteilung der sektoralen Eingriffsauswirkungen (je FB)
1. Schritt – Einstufung der Sensibilität
2. Schritt – Einstufung der Eingriffsintensität
3. Schritt – Beurteilung der Eingriffserheblichkeit
(Belastung/Verbesserung)
4. Schritt – Maßnahmenentwicklung
5. Schritt – Ermittlung der Verbleibenden Umwelt-Auswirkungen
 Sektorale Gesamtbeurteilung

 Gesamtbeurteilung der Eingriffsauswirkungen (UVE)
Wechselwirkungen zwischen den Fachbeiträgen
„Integrative Zusammenschau“


Conclusions

The challenge: Balancing requirements of 2 directives

Renewable Energies Directive (RES-e)
achieving a 20% share of energy
from renewable sources by 2020

Water Framework Directive (WFD):
achieving good ecological status/potential
in surface waters and groundwater by 2015


Conclusions

 Hydropower is an important source of
renewable electricity in the EU

 A recent study commisioned by DG ENV
estimated that hydropower could be reduced
by only 8-9 TWh (2.3 – 2.6% of total hydro)
because of ecological mitigation required by
the WFD

 BUT also found that refurbishment can lead
to both ecological mitigation AND increased
production of hydropower


Thanks for your attention!

Session4.3 tiwag martin schletterer

More Related Content

What's hot

Viewers also liked

Similar to Session4.3 tiwag martin schletterer

More from SHAREPROJECT

Recently uploaded

Session4.3 tiwag martin schletterer