1 / 20

The Water - (Land-) Energy – Ecosystem Nexus i n the Blue Nile / Ethiopia

The Water - (Land-) Energy – Ecosystem Nexus i n the Blue Nile / Ethiopia. Holger Hoff Stockholm Environment Institute (SEI) Potsdam Institute for Climate Impact Research (PIK) Lucia de Strasser Royal Institute of Technology (KTH) Bahir Dar, 27 March 2013.

bryson
Download Presentation

The Water - (Land-) Energy – Ecosystem Nexus i n the Blue Nile / Ethiopia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Water - (Land-) Energy – EcosystemNexus in the Blue Nile / Ethiopia Holger Hoff Stockholm Environment Institute (SEI) Potsdam Institute forClimate Impact Research (PIK) Lucia de Strasser Royal Institute of Technology (KTH) Bahir Dar, 27 March 2013

  2. Nexus Background Paper www.water-energy food.org/documents/ understanding_the_nexus.pdf SEI, KTH, FAO, IAEA, UNDESA…

  3. Whatis „thenexus“ ? an integrated approach promoting “systemic thinking” e.g. externalities, tradeoffs, synergies Why do weneedit ? increasing demand for natural resources, for food, energy and other human securities, threatens environmental sustainability , ecosystem services -> needforsustainableintensification -> needforcoherentpoliciesacrossscales -> tobesupportedby multi-scale, cross-sectoralanalyses Howtoimplementit? mostlythroughcasestudies:Burkina Faso (food-biofuel) , Mauritius (sugarcaneforbiofuel), MENA (climateadaptation – mitigation), California, Blue Nile

  4. Tool box fornexustradeoffanalysis, integratedscenarios,policyandinvestmentsupport WEAP/ LEAP (AEZ) simulating long-term resource allocations, integrated network-based demand and supply analysis, transparent, flexible, user-friendly, low initial data requirements, similar user interfaces and terminologies, widely used in ministries, authorities, bureaus, NGOs, universities etc: 100s of users worldwide. for free to non-profit developing country institutions frequenttrainings in Sweden, but also in variousregions (plus online tutorialsandhandbooks) tobedevelopedjointlywithstakeholdersandscientists

  5. (CLEW Integration, KTH)

  6. WEAP Water Evaluation And Planningwww.weap21.org • Integrated watershed planning, matching demands and supplies • GIS-based, graphical drag & drop interface • Additional simulation modeling possible: land use effects, groundwater dynamics, crop water use, crop productivity, water quality, reservoirmanagement & hydropowerfinancial module

  7. LEAP Long range Energy Alternatives Planning System Typically organized by sector, subsector, end-use and device. Users can edit the tree on-screen using standard editing functions (copy, paste, drag & drop) Structure can be detailed and end-use oriented, or aggregate (e.g. sector by fuel).

  8. Cost-Benefit Analysis (“externalities”) in (WEAP) LEAP • Societal perspective of costs and benefits (i.e. economic not financial analysis). • User specifies boundaries • Cost-benefit analysis calculates the Net Present Value (NPV) of the differences in costs between scenarios.

  9. Previous case studies (KTH, SEI)Mauritius • Energy Security in changing Climate conditions • Small island with clear boundaries- data availability • Producer and exporter of sugar (occupying 80 % cultivated land area) • Dependent on fuel imports for its energy requirement • Highly vulnerable to climate change • Nexus („CLEWs“) approachformallyadoptedfor national policiesbythegovernment

  10. Previous case studies (KTH, SEI)Burkina Faso • Increasing Population (water demand, energy access, food security) • Land locked country • Population increase and urbanization (centralized demand) • Dependence on one main export crop (cotton) • Continuous deforestation • No own fuel resource – Dependence on wood for as energy source • Agriculturalintensification on suitalblelandforfoodsecurity, biofuelproductionandreducedemissions. (CLEW Integration, KTH)

  11. Previous case studies (KTH, SEI)California Water for Energy and Energy for Water The water sector accounts for 19% of California’s electricity consumption Importation of water from North to South California Proposed scenario: introduce a share of water supply (5%) from desalination of sea water Result: quantified tradeoff: increased energy consumption vs water saved (not imported)

  12. ApplicationofthenexusconcepttotheEthiopian Blue Nile • Supportingongoingactivities, plansandstrategiese.g. GTP & CRGE: agricultural intensification / commercialization / irrigation, • renewables / hydropower / bioenergy crops • Identifying pathway to achieve goals such as: • improved water use efficiency(GTP) • avoiding further cropland expansion (CRGE) • Fordiscussion: howarethe national goalsbroken down into Blue Nileplanningandmanagement?

  13. ApplicationofthenexusconcepttotheEthiopian Blue Nile proposedfocus on biomassproduction, tradeoffanalyses / testing different strategies, e.g. small- vs. large-scalestorage waterfor hydropower vs. waterforagriculture waterforbiofuels vs. waterforfoodproduction energyforagriculturalintensification goal: „improvedlandscapeconfigurations“ forresilience

  14. Initial LEAP modelforEthiopia / Blue Nile • National Model on LEAP (to be linked with Blue NileBasin Model on WEAP and eventually with Land Use using GAEZ) • Disaggregation of data from Blue Nile Region

  15. Initial WEAP modelfor Lake Tana

  16. Initial WEAP modelfor Lake Tana quantifyingupstream <–> downstreameffectsandtradeoffs

  17. Implementingthenexus water do sectorscooperate? agriculture institutionalnetworkanalysis inter-agencycoordination, e.g. via interministerial steeringgroup (CRGE) energy

  18. The nexusand (healthy) ecosystemservices

  19. The nexusand (degraded) ecosystemservices

More Related