Small-Micro Hydro Facilitation & Innovative Technologies in Japan

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1 1 HYDROVISION2006 Oregon Convention Center, Portland, Oregon USA July 31 August 5, 2006 Innovative Small and Medium Hydro Technologies Workshop By IEA Small Hydro Annex-2 2 & NRCan - CETC Small-Micro Hydro Facilitation & Innovative Technologies in Japan August 1, 2006 Junichi Isono New Energy Foundation, Japan 2

2 Introduction Land Area Population Population Density TPES Electricity Production Generating Capacity Average Annual Rainfall 378,000 km million 338 /km Mtoe 1,038 TWh 261 GW 1,700 mm * Source: Statistic Bureau, Ministry of Internal Affairs and Communications, Japan IEA Renewable Information Introduction Description Japan USA Canada UK Land area Population TPES Electricity Generation of which: renewable of which: hydropower (TWh) Renewable / Total (%) Hydro / Total (%) CO2 Emission (x 1000km2) (Million) (Mtoe) (TWh) (TWh) (Mt of CO2) , ,201 9, ,281 4, ,729 * Source: Statistic Bureau, Ministry of Internal Affairs and Communications, Japan IEA Renewable Information , ( Figures of Year 2003) 4

3 Ratio Introduction TPES (toe/capita) Electricity Consumption (kwh/capita) CO 2 Emission (t CO2/capita) * Source: Statistic Bureau, Ministry of Internal Affairs and Communications, Japan IEA Renewable Information Introduction Hydro Potential Classified by Output Nos. of Hydro Site Output (MW) Possible Annual Power Production Developed & Under Const. 67 % Yet Exploited 33 % * Source: Agency for Natural Resources and Energy, METI, Japan (2005) 6

4 Challenges & Facilitation of Small-Micro Hydro 7 Challenges of Hydro Activity in Japan 3. Time-Consuming Licensing Procedure 1. Loss of Feasible Sites 2. High Construction Cost 4. Environmental Conservation 5. Public Acceptance Uncompetitive Hydro Generation Cost Stagnation of Hydro Activities 8

5 Policies to Facilitate Hydro Development Hydro-Valley Develop. Programmes Survey of non-used hydro potential F/S for specific hydro-sites To Enhance Public Awareness Enhance Public Relation To Specify Promising Sites Challenges To Urge Innovative Technologies leading to Cost Down Tech. Research for SHP F/S for water quality improvement in reservoirs To Reduce Primal Generation Cost Grant for Construction Cost To Encourage Local Developers (Municipalities) Grant for SHS developer 9 Hydro Valley Development Programmes Various Water Resources Mountain Streams Irrigation Water Water Sand-guard Dam Dam Water Water Fresh Fresh Water Water Supply Sewage Drain Drain Water Water Small-Micro Hydro Vitalization of Local Communities Local Local Infrastructures Services & Businesses Farming Fishery Tourist Spots Spots Employment 10

6 Hydro Valley Development Programmes 11 Innovative Technologies 12

7 Innovative Technologies 1. Siphon-Intake Micro-Tubular Turbine (Tokyo Electric Generation Co., Ltd.) 2. VLH Micro Hydro Set-in Farmland Irrigation Channel (Electric Power Development Co., Ltd : EPDC) 3. In-line Hydraulic Turbine Generator (Kubota Corporation) 13 Siphon-Intake Axial Propeller Turbine Joint Research Program by Bureau of Sewerage, Tokyo & Tokyo Electric Power Company (TEPCO) 14

8 Siphon-Intake Axial Propeller Turbine NURUKAWA Micro Hydro Power Plant Site- Specific Concept Installing Turbine above Intake Water Level Minimizing Site Works Output 37 kw Max. Water Flow 1.1 m3/s Max. Effective Head 4.49 m Pipeline Dia. 800 mm Pressure MPa Turbine Horizontal Axis Propeller Siphon-Intake Axial Propeller Turbine

9 VLH Micro Hydro Set-up in Farmland Irrigation Channel By Electric Power Development Co., Ltd. (EPDC) Proto-Type Field Demonstration ( ~ ) Output 30 kw Effective Head 2.0 m Max. Water Flow 2.4 m3/s Channel Width 2.05 m 17 VLH Micro Hydro Set-up in Farmland Irrigation Channel By Electric Power Development Co., Ltd. (EPDC) 1. Original Flow 2. Cradle Installation 3. Turbine Installation 18

10 VLH Micro Hydro Set-up in Farmland Irrigation Channel By Electric Power Development Co., Ltd. (EPDC) Characteristic Hydro-Agri R To Utilize Hydraulic Energy Dissipater in Existing Channel H > 1.5 m To Minimize Site Work and Install Factory Product in a Short Time To Simplify Operation and Regular Maintenance 19 In-Line Hydraulic Turbine Generator Pressure Reducing Valve By KUBOTA Corporation, Japan Reservoir, etc Distributing Reservoir Distributing Reservoir Water Purification Plant Reserved Tank Pipeline Distributing Reservoir Pump Distributing Reservoir 20

11 In-Line Hydraulic Turbine Generator By KUBOTA Corporation, Japan Simple & Compact Structure Easy Installation in Straight Line Output > 20 kw Water Flow Mechanical Seal Water Lubrication Oil-Free Turbine Runner Water Flow Built-in Generator 21 In-Line Hydraulic Turbine Generator Summary of Field Demonstration By KUBOTA Corporation, Japan Specification Nominal Bore 250 mm Length 1,440 mm Weight 1,250 kg Water Flow m3/sec Effective Heads 20.0 m Output 35 kw Rotation 1,010 rpm Monitoring Period Feb.22, 2003 ~ March 31, 2005 Electricity Generation Rate of Operation 535 MWh 92.6 % Cost saving (Electric Charge) 2.55 M p.a. ($ 22,000 p.a.) Reduction of CO2 Emission 186 t-co2 p.a. ( = kg-co2/kwh) < Equivalent of 50 hectare Reforestation > 22

12 In-Line Hydraulic Turbine Generator By KUBOTA Corporation, Japan Field Demonstration ~ Generator Performance Data Generated Electricity Voltage Current Frequency Runner Revolution Power Factor Water Flow Effective Heads Water Quality Data Water Pressure Water Temperature ph Turbidity Residual Chlorine 23 Inquiry Siphon-Intake Micro-Tubular Turbine (Tokyo Electric Generation Co., Ltd.) VLH Micro Hydro Set-in Farmland Irrigation Channel (Electric Power Development Co., Ltd : EPDC) Refer to In-line Hydraulic Turbine Generator (Kubota Corporation) OR New Energy Foundation, Japan 24

13 Thank you for your kind Attention 25

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