Piloting Biomass Gasification Project for Rural Electrification in Nepal Mr. Nawa Raj Dhakal Assistant Director, AEPC & Program Manager, Biomass Energy Sub-component, NRREP International Workshop on Sharing Business Models and Scaling up Mini Grids in Asia and the Pacific 6 -7 February 2013, Kathmandu, Nepal
28
Embed
Session 5 - Biomass Gasification Rural Electrification Pilot Project Nepal_N R Dhakal
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Piloting Biomass Gasification Project for Rural Electrification in Nepal
Mr. Nawa Raj Dhakal
Assistant Director, AEPC &
Program Manager, Biomass Energy Sub-component, NRREP
International Workshop on Sharing Business Models and Scaling up Mini Grids in Asia and the Pacific
6 -7 February 2013, Kathmandu, Nepal
Presentation Outline
• Bioenergy routes and biomass gasification
• Biomass gasification, feedstocks, producer gas & applications
• Opportunities for biomass power production in Nepal
• Estimated potential of biomass energy in Nepal
• Government policy & program
• Biomass gasifiers piloted under AEPC
A Case study of Biomass Gasifier Community Electrification Pilot Project in Madhubangoth VDC, Sarlahi
• Emerging involvement of private sector
• Way forward
3
A Variety of Bioenergy Routes & Biomass Gasification
Source: E4tech, 2008.
1Parts of each feedstock, e.g., crop residues could be used in other routes; 2Each route also gives co-products; 3Biomass upgrading includes any of the densification processes; 4AD= Anaerobic Digestion
What is Biomass Gasification?
• Gasification is essentially the conversion of biomass to a combustible gas called “Producer Gas” or “Syn Gas”
• This gas can then be burnt
directly for thermal application or fed in Engine Gensets to produce electricity
Particulars Rice Husk as biomass Woody Biomass
CO 15-20% 15-20%
H2 10-15% 15-20%
CH4 Upto 4% Upto 3%
N2 45-55% 45-50%
CO2 8-12% 8-12%
Gas C.V. in kcal/Nm3 Above 1050 Above 1100
Gas generated in Nm3/Kg of biomass
2 2.5
Producer Gas Properties
Biomass Gasification: Feedstocks
Wide range of biomass can be used as fuel for gasifier including forest and agro-residues such as:
• Wood Pieces, Chips and Woody Waste
• Rice Husk
• Coconut Shells
• Mustard and Cotton Stalk
• Bamboo Pieces
• Tea and Coffee Waste
• Corncob
• Sugarcane baggasse
Biomass Gasification: Applications
Power Generation Thermal Applications
• Village Electrification
• Irrigation Pumping
• Captive Power (Industries)
• Grid-fed Power from Energy Plantations on Wastelands
• Simultaneous Charcoal and Power Production
• Hot Air Generators
• Dryers
• Boilers
• Thermic Fluid Heaters
• Ovens
• Furnaces & Kilns
Biomass Gasifier For Electrification
A typical configuration of a gasifier system coupled with internal combustion engines
• Biomass is the primary source of energy supplying 87.1% of the country’s total energy consumption
• Agriculture activity is major economic activity & a lot of biomass is produced in the from of agro-residue.
• Forest-residue is also abundant; large quantity available from community forests
• 30% of rural populace have access to electricity compared to 90% in urban areas
• Power shortage in grid supplied areas
Opportunities for Biomass Based Power Production in Nepal-1
• Weeds like water hyacinth (Eichhornia spp.), ipomoea (Ipomoea spp.) & dhaincha (Sesbania spp.) are in plentiful amount mainly in Terai due to the sub tropical climate
• Remote Terai with no national grid has a very few alternatives for power generation; energy from sustainable biomass resources can be promising
• Biomass gasifier is a viable alternative for electricity generation in the remote rural areas where biomass supply based on agricultural and forestry residue as well as waste biomass vegetation is in abundance
Opportunities for Biomass Based Power Production in Nepal-2
Estimated Potential of Biomass Energy in Nepal from Various Biomass Sources
S.N Source of Biomass Potential Capacity (in MW)
Remarks
1 Sustainable fuel wood 800 7.0 million t/year and 1.0 kg/kW
2 Agro residue 700 12 million t/year from five main crop type and 2 Kg/kW
Source: Gasifier feasibility study report, VERDICT, 2011
Biomass Gasification in Government Policy-1 • Rural Energy Policy (2006): Awareness creation,
development & dissemination of technology for biomass gasification based on feedstock availability
• Three Year Plan (2010-13): Biomass gasifiers will be promoted & expanded in Terai for cooking and electricity production
• Renewable (Rural) Energy Subsidy Arrangement (2009):
No direct subsidy but support in studies, R& D, trainings and pilot projects in the field of other RETs, e.g., biomass briquette, institutional gasifiers, biofuels etc.
Subsidy policy is under revision & direct subsidy proposed for Biomass gasifiers, both for thermal application & electricity generation
Biomass Gasification in Government Policy-2
• AEPC promotes biomass based modern technologies
The Biomass Energy Sub-Component of National Rural and Renewable Energy Programme (NRREP) is designed to include all major solid biomass energy technologies as solutions to rural energy problems
The component aims to provide appropriate information to raise awareness and capacity development of local level partners working in this sector for dissemination of the solid biomass technology
Biomass Energy Sub-Component of NRREP, 2012-17
• Output 2.3: Scaled-up implementation network for ICS is in place and tested and certified stoves with defined quality criteria are operational
• Output 2.4: New technologies such as enterprise scale gasifiers and bio-briquetting are ready and field tested
Piloting of biomass gasifier electrification systems for community electrification & captive electricity generation for SMEs
Dissemination of thermal gasifier units for SMEs
Capacity development of manufacturers on gasifier technology
Information dissemination & promotion
Dissemination strategy for gasifier technology under subsidy
15
Biomass Gasifier based technologies piloted under AEPC
• Piloted 4 units of biomass gasifier for thermal application (agro-processing, tea and herbs drying) at Ilam, Panchthar & Kathmandu during AEPC/ESAP
Biomass Gasifier based technologies piloted under AEPC
Gasifier piloted for community electrification under AEPC/REDP at Madhuban Bazar, Madhubangoth VDC, SARLAHI
Madhubangoth VDC, Sarlahi, Janakpur Zone
Sarlahi
Project Location
Madhubagoth (B): 20 km South-West from Malangwa Municipality (A)
• Prefeasibility study conducted on Feb 2010 by Winrock
International
• REDP/RERL started field work for piloting of gasifier in Jul
2010
• Implemented through Community Management approach
(7F/7M COs)
• Agreement with Ankur Scientific Energy Technologies Pvt.
Ltd, Baroda on Aug 2010 & equipment supplied on Nov
2010
• Date of installation of E/M equipments and testing and