Op TIMUS communi ty Introduction to CLEWs interlinkages

Op. TIMUS. communi ty Introduction to CLEWs interlinkages

Integrated Assessments • Integration of knowledge from different systems (e. g. water, energy, food, climate) into a single framework through the development of models that aim at representing the dynamics of resource systems and their interaction with its users. Advancing knowledge of systems, interactions between systems and implications across sectors Main goal of informing policy design

Assessing the climate, land(food), energy and water nexus Investigation of how resource systems interact. The CLEWs framework suggests this can be achieved quantitatively: - with the development of sectoral systems models and integration and iteration between these; - Using a single model framework (e. g. OSe. MOSYS). Conflicts Trade-offs Opportunities Synergies

How do systems interact?

Water & energy WATER water systems rely on energy to operate at every stage, from water abstraction and production, diversion, treatment, use and disposal. 2/5/2022 Energy needs water in all the different stages of electricity generation, not just in the operational phase (e. g. cooling) but also for fuel extraction, component manufacturing and power plant construction. ENERGY Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH

Water to Energy Fuel cycle Fossil fuel extraction Fuel processing Biofuel cultivation and processing WATER TO ENERGY Energy conversion processes Transport sector hydropower Electricity generation Thermal power Non-hydro renewables 2/5/2022 Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH 7

Water to Energy: water use, withdrawal and consumption Water use withdrawal Consumptive use: evaporation in cooling ponds and towers 2/5/2022 Nonconsumptive: Return of withdrawn water Reservoirs and Ro. R Consumptive use: evaporation losses Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH Nonconsumptive: discharge 8

Water for energy: electricity generation HYDROPOWER PLANTS Evaporation THERMAL POWER PLANTS consumption discharge WATER RESOURCES withdrawal Return flow

Water for energy: thermal generation and cooling systems TYPE OF FUEL AND TECHNOLOGY Once-Through (m 3 MWh-1) 0. 38 1. 02 0. 95 3. 03 Tower (m 3 MWh-1) 0. 78 2. 54 2. 60 3. 41 TYPE OF COOLING SYSTEM

pumping (extraction and distribution Energy to water purification Operation of water systems ENERGY TO WATER wastewater treatment non-conventional production of potable water pump storage power plants Water heating Use of water Energy use and end use (e. g. washing machines) Energy for agriculture 2/5/2022 Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH Irrigation systems 11

Water & Land URBAN AREAS & PLANNING WATER TO LAND Population distribution and location of water resources Crop suitability and yields AGRICULTURE Livestock Forests Natural cover Wetlands Inland water 2/5/2022 Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH 12

Group work • Identifying CLEW challenges at national level Access google doc (in Country Data folder): Climate – land use – energy – water challenges 2/5/2022 Summer School on Modelling Tools for Sustainable Development 12 -30 June 2017, ICTP, Trieste. Organizers: UNDESA, UNDP, ICTP, Cambridge University, KTH 13