Kandahar Solar Home Systems
Transcription
Kandahar Solar Home Systems
USAID Afghanistan Clean Energy Program (ACEP) Kandahar Projects Overview Kandahar Demographics Population: ~1.3 million, most of which live in Kandahar City (~850,000). Only a minority of the population has limited access to grid power. Hydro resources are relatively limited in this arid province. Most communities are located on existing rivers in the valleys, but typically with low head and seasonal flows limiting hydropower potential. Solar energy is often the only realistic solution for much of the sparse rural population scattered across difficult arid terrain in unsecured areas. 2 Kandahar District Populations District Arghandab 51,600 Arghistan 28,900 Daman 24,800 Ghorak 8,000 Kandahar ~850,000 Khakrez 19,200 Maruf 27,700 Maywand 40,700 Miyan Nasheen 12,600 Naish 11,300 Panjawaye 82,800 Reg 1,600 Shah Wali Kot 36,400 Shorbank 9,600 Spin Boldak 41,000 Zhari 49,500 TOTAL 3 Population ~1,300,000 ACEP Kandahar Implementation Strategy Effectively work in the local communities through local staff ACEP Permanent Presence Based in Kandahar City • Field Leader is Sher Khan with 2 assistants • Regular contact with local project communities 4 Train local solar & MHP workforce Develop local solar industry Create local partnerships Replicate solar project successes Develop long term sustainable commercial markets Poor Wind Resource in Kandahar 5 Kandahar Hydro Resources Helmand River - Kajaki Hydropower plant 1975 USAID Arghandab River - Baba Wali MHP Tarnak river (seasonal) 6 Baba Wali MHP (Arghandab Valley) ACEP has met with elders and operators of the Arghandab valley in Kandahar to rehabilitate the MHP system Government owned under Provincial Water and Energy Dept. Community agreement to rehabilitate MHP secured through series of meetings with ACEP representatives Baba Wali Mausoleum 7 Baba Wali Hydro Background Community/Beneficiaries: Six villages, 350 families, powered by the plant: Baba Sahib, Keshata, Langar, Naw-e-Kalai, Sair-e-Dig, and Mianjoi. Provides power for 19 hours every day; closes from 12 am to 5 am Community is billed according to meters; charged 1.5 Afs/kWh for first 300 kWh, and 4 Afs/kWh for over 400 kWh per month 1 plant supervisor and 4 mechanics Plant History: Originally built in ~1920’s under King Amanullah Functional until destroyed during the civil war in ~1990 Repaired in 1994 under Taliban regime by a German company Plant is still operational but in need of repair and upgrade 8 320 KVA Siemens Generator ACEP is working with Plant Supervisor Provincial Council Rep 9 Baba Wali Rehabilitation Needs Plant runs for 7 months out of the year; not functional from November – March due to insufficient water Band-e-Dala dam is 11 km upstream in Shawali Kot and is being assessed for repair by the Provincial Reconstruction Team (PRT), which would extend water flow through the remaining 5 months of the year Plant may be able to run at an increased output after dam repair Plant supervisor desires to replace turbine and generator The Provincial Council representative guarantees ACEP security and has offered accommodation, transportation, and community support 10 Baba Wali Repair Needs One fore-bay door needs to be replaced; takes 5 men to open and close the doors; Water escapes and floods local residents’ croplands on the riverbank. Replacement of three mud walls. Generator overheats regularly; Power house roof is destroyed, exposing turbine and machinery to water damage Office building in need of structural repairs 11 12 Solar Resource Annual concentrating solar resource kWh/m2/day 13 Decentralized Solar ~100,000 SHS nationwide Only realistic short term approach to electrify off-grid homes in the less populated rural Districts of Kandahar is through PV. Cost:~$750/home (50 Wp) that provides ~150 Wh/day of delivered energy. 14 Solar Project Development Models Entity 15 Project Development Investment Management Business Business Private Private Government or NGO Private or Non Profit System Designer Government, NGO, Local Local government, community, hired Villages/ Distributed Systems Cooperative Private or Non Profit System Designer Government, NGO, Local Government Agency Private Company Concessions Private Holder will make investment, however may be government subsidy or guarantee Holder of concession Private Extension Business Business Private Institutional Solar Sales Approach Pyramid Rural well-to-do Cash Sales Credit Rural Poor Leasing (Fee fo r Ser vice) Very Poor 16 Subsidies Required Kandahar Solar Home Systems Survey conducted for Solar Home Systems in Kandahar City Over 200 homes of disabled persons surveyed and loads quantified. Surveys nearly complete and analysis forthcoming. Originally were advised that these were off-grid homes, however, that is not the case: on-grid homes with 3-4 hrs/day of electricity. This changes the original design concept (from off-grid SHS to possible on-grid SHS with battery charging). Recommendations forthcoming based on survey results. 17 Kandahar Solar Streetlights Under procurement The systems are comprised of an encased lamp, a photovoltaic panel, deep-cycle battery, charge controller, and pole. The PV power streetlights are capable of providing lights throughout the night 440 streetlights for 11 km. of Kandahar City 12 streetlights for Panjawayi Cost: ~$2k each Schedule: ~Sept. Installation 18 Solar Water Pumping 25 solar water pumping systems are under development to pump water for communities, clinics, schools, and for small farm irrigation throughout Kandahar Province. Under procurement Cost: ~$10-15k each ~August installation 19 JDA-NMSU-SESA Large PV Options for Kandahar Largest PV System @ 80 kWp Sayed Karam, Paktiya, 5 months to ship & install US$2.3 Million with $700k for transmission & $800k batteries US$10/Wp (w/o trans & batt) 20 Large Scale Kandahar Utility Interactive Photovoltaic Feasibility Assessment ACEP completed a feasibility assessment for a 10 MWp photovoltaic power system (PVPS) for Kandahar City. It was determined that a 10 MW PVPS would generate over 20,000 MWh the first year and about 480,000 MWh generated over the next 25 years, at approximately US$0.19 per kWh amortized over 25 years. 10 MW Abu Dhabi PVPS 21 Kandahar 10 MW PVPS Power Production 22 Annual Total ~ 20,183 MWh Kandahar PVPS LCC 25 Years 23 Kandahar 10 MW PVPS Energy NPV 24 Kandahar City Energy Efficiency Steps • Current electricity use varies from 100 to 800 MWh/day at an average of 20,000 MWH/month, with an estimated Average demand of ~30-40 MW at present. Peak ~ 54 MW. • Power is supplied from Kajaki hydro plants (31 MW capacity 2 units operational- line cut off 5 times over the last year)) and Kandahar diesel generators (~23 MW capacity). • Population is expected to reach 1M before 2015, which would mean a need for 100MW peak Load, that is ~doubling the current capacity. 25 Kandahar EE Recommendations • Based on ACEP assessments in Kabul, Bamiyan, and elsewhere, we believe that following 3 actions could be taken from an EE/DSM standpoint to ease the situation: Ban on incandescent bulbs and replace with CFLs (e.g., 200,000 units, 13 vs 60 W, 9 MW possible peak reduction for additional 90,000 customers). Cost ~$500k Broad installation of solar water heaters (1,000 units would mean another possible 1-2 MW reduction). Cost ~$750k Pre paid meters facilitate revenue collection and educate public on electricity value. Savings up to 2 MW due to better energy conservation practices. Cost w/mgt. ~$150/customer. 26 Kandahar EERE Summary Rehabilitation of Baba Wali (Arghandab) Hydro Project design underway by ACEP, ~12-18 months. Solar streetlights for Kandahar City installed Sept. Solar water pumpers in the pipeline. Solar home system surveys underway. Energy efficiency and demand side management (DSM) has load saving potential of ~12 MW; and average load saving up to 5 MW. Total cost should not exceed ~$3M (less than $600/avg. kW, plus fuel savings). 27