4th International Conference Water in the Alps SEE HYDROPOWER

Transcription

1 SUSTAINABLE HYDROPOWER Strategies for the Alpine Region 4th International Conference Water in the Alps 23th October 2012 Munich - Germany WATER MANAGEMENT INSTITUTE SEE HYDROPOWER GIS tools and methods to support Hydropower Planning with regards to Environmental objectives Mag. Sašo Šantl

2 The SEE Transnational Cooperation Programme

3 Partnership 12 Partners and 10 Observer Partners Italy Austria Slovenia Romania - Greece Republic of Moldova The Netherlands - EU Prefecture of Serres Province

4 Main Objective Energy RES-e Directive Environment Water Framework Directive

5 TOOLS to support Public Administrations METHODS to preserve downstream river quality APPLICATIONS testing methods & tools in 6 pilot areas SESAMO

6 Website

7 Concept approach at strategic level The classification scheme defining the potential appropriateness resulting from the comparison of the two considered aspects. CONCRETE METHODS AND SUPPORT TOOLS DEVELOPMENT

8 E/F analysis WATER MANAGEMENT INSTITUTE HP implementation process Determination of HP potential (available technical potential, economically feasible potential) ATTRACTION Harmonization with environmental objectives VULNERABILITY Nature preservation (EU Directives, ; national legislation, ) Water management (WFD Directive, Flood directive, ; national legislation, ) Environment protection (Waste water Directive, ; national legislation, ) Ecologically acceptable potential SUITABILITY Spatial planning (Spatially defined potential) Concession granting process (Actually exploited potential) Theoretical potential: use of all precipitation Available technical potential Ecologically acceptable potential Spatially defined potential Actually exploited potential Water use right granting

9 Attraction - Determination of HP potential - GIS tool: VapidroAste First phase (available technical potential): creation of river network and sub-basins on the basis of DEM, determination of available water on the basis of hydrological data, existing water use and demands on EF, determination of hydraulic parameters and efficiencies of hydropower objects and facilities. Second phase (economically feasible potential): determination of cost curves for objects and facilities of HPP(dependency on HPP installed power, length of channel and penstock, size of catchment area) costs and revenues in the operational phase (amortization period, operational and maintenance costs, guaranteed purchase price, market price of electricity etc.)

10 Determination of HP potential - GIS tool: VapidroAste Efficient tool for strategic decision making and reconnaissance studies (national/regional programmes, basic concept design), Attention must be focused on input data: DEM, hydrology, existing water use (cases when official data were recognized as incorrect) Calibration of investment curves What HP potential we are examining: technical, available technical, available economically feasible,

11 Suitability model development one dimensional model Indicators Weight Normalized Weight Potential (electricity production) Hydromorphological alteration Existing HPP Barriers Natura Spawning areas Other criteria or indicators Each section of river is scored by evaluation of selected indicators (in our case section is 50 m in length). Scores from 0 to 1.

12 Study case Slovenian Alpine river Required data collection and preparation Digital elevation model Hydrology Layers on analysed data (spatial allocation, data snapping to main layer river network etc.) Development of tools and algorithms for automatisation of the analysis process (query analysis, calculation of suitabilty etc.)

13 7 diversion intake water release ranking by B/C ratio Study case Slovenian Alpine river Hydropower potential evaluation (reduced by EF)- VapIdroAste tool development Economically feasible potential: Electricity production cca MWh/year Installed power cca kw Invest. Costs: cca. 30 M EURO (nowadays : 8 existing shpp with production cca MWh/year)

14 Study case Slovenian Alpine river Results: scores for each section of the river (analysed section L = 50 m) Suitability

15 Study case Slovenian Alpine river Definition of suitability range: score < < score < < score Suitability Suitable potential (green sections): Electricity production cca. 920 MWh/year Installed power cca. 170 kw

16 Study case Slovenian Alpine river Definition of suitability range: score < < score < < score Suitability Suitable potential (green sections): Electricity production cca MWh/year Installed power cca kw

17 Study case Slovenian Alpine river Definition of suitability range: score < < score < < score Suitability Suitable potential (green sections): Electricity production cca MWh/year Installed power cca kw

18 Study case Slovenian Alpine river Consideration of exclusion areas (potential reference sites, catchment area < 10 km2) Catchment area < 10 km2 Suitable potential (green sections): Electricity production cca MWh/year Installed power cca kw Suitability Suitable potential and also economically feasible: Electricity production cca MWh/year Installed power cca kw

19 Two dimensional suitability model 1 Weights with normalization HP <-> Ecology 0 1 Weights with normalization

20 Determination of suitability range (or acceptance) 0.4 Score of the point is (0.8; 0.7). 0.2 Suitability range: HP > 0.2 and Eco < 0.4

21 Strategic and spatial planning Strategic planning Spatial planning Design and construction HP Potential estimation Consideration of RBMP and other water connected protection areas (Nature, etc.) Water status (hydromorph. alterations, ecologic status, etc.) More detailed potential evaluation CEIA - Exact determination of environment reguirements (MIF, mitigation measures etc.) Water right granting Design documentation EIA Investment Programme Eligibilty for EU funding or (national funding) could base on strategic map Paralell other EU Fund Programmes which support realisation of National Plans for different sectors (waste water treatement, water supply, regional development etc.)

22 CONCLUSIONS Strategic level of decision-making process should be based on the available data; detailed analysis of locations, which were defined as favourable sections under a suitability analysis, should be performed in the framework of spatial planning and environmental impact assessment; It is efficient if the suitability score is presented with separate scores for the two main criteria, i.e. hydropower attractiveness and environmental vulnerability. With this approach, it is more transparent which criteria contribute more to the total suitability score; To make final decisions on the indicators to be included in the analysis (representative indicators), on the weights and on the suitability level to define favourable sections, the developed method should be applied on a larger scale (national or regional scale); for an efficient model development calibration, verification and sensitivity analysis must be performed; and Determination and adoption of exclusion areas should be harmonized with different objectives and aspects in water management.

23 Thank you for your attention! Mag. Sašo Šantl