Presentation on theme: "SHOWCASING STATE-OF-ART GASIFICATION SYSTEMS FOR RURAL ELECTRIFICATION A Reliable, Efficient & Affordable Solution Ankur Scientific Energy Technologies."— Presentation transcript:
SHOWCASING STATE-OF-ART GASIFICATION SYSTEMS FOR RURAL ELECTRIFICATION A Reliable, Efficient & Affordable Solution Ankur Scientific Energy Technologies Pvt. Ltd., ‘ Ankur’, Near Old Sama Jakat Naka, Baroda 390 008, India :0265 2793098/2794021 Fax: 2794042 August 27, 2003 By Dr. B. C. Jain Managing Director
ROLE OF RENEWABLE Specifically being considered for most difficult locations (forest villages, hilly terrains, very remote locations, islands, scattered households etc.) Loads and PLFs are likely to be very low Renewables will generally require lower investments for such sites Reliance will be on local resources. Also the entire strategy will be environment – friendly If properly planned and implemented, it could lead to empowerment of local population and possible economic development
SPECIFIC RENEWABLES Major reliance is being placed on three options Micro hydel Solar PV Biomass Gasification Wherever water resource is available, micro hydel is idea choice Wherever “the village” consists of a small number of scattered households, solar home lighting system are the natural choice Wherever no biomass is available (desert areas etc); once again, solar PV system are the only choice However, a vast majority of location will have both biomass and solar radiation and hence require intelligent selection
RURAL ELECTRIFICATION THROUGH RENEWABLES – The Current Scenario “Non-Conventional” Wisdom assumes that photovoltaic home lighting systems and PV power packs (5–10 kWe) are the only viable solutions for electrification of small villages/communities While home lighting systems are a logical choice for scattered households or for households on difficult terrains (i.e. scattered individual homes on hills or in forests), PV power packs still require distribution lines Investments are very large and yet, the power delivery is not of grid quality or “on demand” Storage batteries are a necessary evil (requiring replacement after a few years)
THE CHALLENGE Provide Grid Quality power even at a few kW level Provide power “on-demand” Require No Storage Be Efficient & Reliable Be Affordable Depend totally on local resources Could be operated and managed by local people So the challenge was to come up with an alternative solution that would,
THE OPTION OF BIOMASS GASIFICATION Systems were in dual-fuel mode, requiring some amount of diesel Small rating systems were not very user- friendly Biomass preparation (sizing) was seen to be hasslesome for small power needs Systems were not packaged well Operation & Maintenance by local people was not assured/built into the system While biomass gasification based power generation always had the promise, it suffered from the following drawbacks: All of this has indeed changed in the recent past!
` ANKUR ’ BIOMASS BASED POWER PLANT FOR ISLAND ELECTRIFICATION BASED ON THE UNQUALIFIED SUCCESS OF THE FIRST, A SECOND PROJECT INSTALLED IN NEARBY ISLAND Case Study- I Dual Fuel, Large Systems
` ANKUR ’ BIOMASS BASED POWER PLANT FOR ISLAND ELECTRIFICATION BASED ON THE UNQUALIFIED SUCCESS OF THE FIRST TWO PROJECTS, NOT ONLY ADDITIONAL PROJECTS ARE PLANNED BUT THERE IS ALSO A POLICY DECISION TO ELECTRIFY THE ENTIRE SUNDARBANS AREA USING SOLAR PHOTO VOLTAICS AND BIOMASS GASIFIERS. OBVIOUSLY, INSTALLELD CAPACITY IS ALREADY MUCH HIGHER THROUGH GASIFIERS AND A MUCH LARGER NUMBER OF CUSTOMERS ARE BEING SERVED AT A MUCH LOWER COST. Case Study- II Dual Fuel, Large Systems
Excellent variable load capability (with 3:1 turndown) Ideally suited power range for rural electrification as well as captive power for small industries Specific wood/biomass consumption of only 1.2 to 1.6 kg/kWhr Developed through a collaborative R&D project jointly funded by MNES (Govt. of India) and Ankur Scientific, the systems have a number of outstanding features: 100% PRODUCER GAS SYSTEMS HIGHER RATINGS (30 kWe and more) HENCE, COST OF GENERATION OF Rs. 1 to 2 ONLY
` ANKUR ’ BIOMASS BASED POWER PLANT FOR ISLAND ELECTRIFICATION This is a pilot installation and is likely to lead to a large number of similar Biomass based Power Plants throughout Sri Lanka Case Study - 100% Producer Gas Systems
Built-in start-up (No external power source/fuel needed) Specially designed motorised cutter Reasonable variable load capability. Optional battery start (in place of manual cranking of engine) Totally funded internally out of strong conviction, the system have following additional features: We strongly believe remote/rural areas, island communities etc. deserve the best of technology without compromises!!! 100% PRODUCER GAS SYSTEMS SMALL RATINGS (4 kWe to 10 kWe)
A New Vision with total Conviction & Commitment Demonstration Initiating the un- initiated “Hands-On” Training Convincing the skeptic
An Overview of the Small Rating Demo Area A total of seven system covering thermal application, irrigation pumping & power generation in both Dual Fuel & !00% Producer Gas Modes
A Close-up of Irrigation Pumping System – Aesthetic & Ergonomically Designed Package
Thermal Applications – An Industrial burner & two domestic burners being operated on the gasifier system
Generating Power at Village Level – Dual Fuel Mode (Output Rating : 5 kW)
Generating Power at village Level – Dual Fuel Mode (Output Rating : 15 kW)
100% Producer Gas Systems – Ultimate Solution for Self - Reliance based on Local Resources Output 4 kW (Next Rating ~ 8 to 10 kW)
Rural Electrification for Larger Villages, Island Communities – the 100% Producer Gas Way – GAS Power Pack - 40 (Output Rating : 40 kWe)
PV POWER PACKS & PRODUCER GAS POWER PACKS A COMPARISON PV PackGas Pack Initial InvestmentMore than Rs. 30 lacs An order of magnitude lower - @ Rs 3 lacs Availability of power 4 – 6 hours daily24 hours – on demand Maximum number of units that can be generated daily 50 –60 kWhrs200 – 240 kWhrs Take a 8 - 10 kW Power pack Is There a Comparison? In effect, for each kWhr generated, the initial investment could be FORTY times lower! In addition, the total mismatch between the demand and the source requires expensive, battery storage while Producer Gas Power Plant can be run on demand and needs no storage!!
FREE PV POWER VS. COST OF BIOMASS A FALLACY For a 10 kW power pack with equivalent energy delivery, daily biomass requirement may not exceed 80 kg! Whatever price is paid for such biomass really remains within the community as the resource is local! There is therefore no cost to the community for the resource. As a matter of fact, there is a high probability that this money really goes to the have-nots who could gather twigs/branches/firewood for the plant!! Analysis suggests that the cost of battery replacement is generally higher than the cost of biomass used over battery life for equivalent energy output. And this money flows out of the community!!!
MOVING AHEAD Categorizing and prioritizing target groups Formulating a pilot project covering at least five villages in a cluster State nodal agency keen on such biomass based pilot project, with ability to facilitate matters Preparation of a complete project document in a month, identifying alternative operational strategies, likely constraints, viability issues Funding for such quick pilot project documents Subsequent decision making – SNAs? REST? Ministry of Power?
RURAL ENERGY SERVICE PROVIDERS (RESPs?) PERSPECTIVE Businessmen / Entrepreneurs and not philanthropists Limited resources, limited risk-taking ability Limited ability to flight red tape – would rather focus on business basics Ability to repay loans and make reasonable profits (No NPA approach!) Sunk investments (like distribution, civil works) might be seen as liabilities with almost no resale value IN A NUTSHELL, Can work hard Can manage, operate and maintain power/energy supply Need a viable, profit-making, easy to implement project
INDICATIVE PROJECT PROFILES & VIABILITY ISSUES Policy Implications Village size:30-40 households Load Profile:Mainly lighting & fans and a few streetlights System Proposed:GAS-4; net power of 3.5 kW in 100% gas mode (Rs. In Lakhs) Financials:Basic:1.70 Add: transport, taxes, duties:0.30 Site specific civil works:0.40 Misc. & Contingencies:0.30 Sub Total:2.70 (DISTRIBUTION COSTS NOT CONSIDERED) Loan Installment(15 years; no interest) Rs.1500/month O&M Expenses Rs.1200/month Miscellaneous Rs. 300/month So, monthly cash outflow Rs.3000 Hence, even if the charges are of the order of Rs.100/HH/month, there is hardly any income for RESP! What is the way out? Capital Subsidy???
INDICATIVE PROJECT PROFILES & VIABILITY ISSUES Policy Implications Village size:Upto 200 households Load Profile:Mainly lighting & fans, a few streetlights and provisions for commercial loads System Proposed:GAS-40; net power of 30-35 kW in 100% gas mode (Rs. In Lakhs) Financials:Basic:15.32 Add: transport, taxes, duties:0.50 Site specific civil works:1.50 Misc. & Contingencies:2.00 Sub Total:19.32 (DISTRIBUTION COSTS NOT CONSIDERED) Loan Installment:(15 years; no interest) Rs.10,750/month O&M Expenses Rs.9,650/month Miscellaneous Rs. 2,000/month So, monthly cash flow Rs. 25,000 Hence, if the domestic charges are of the order of Rs.100/HH/month and income through commercial sales is atleast Rs. 10,00, RESP can have an income of Rs 5,000/month May be, a small Capital Subsidy???
ISSUES FOR REST MISSION To underwrite marketing and entrepreneur identification and development (training) costs To set up a system for approving RESPs involving local banks and technology/solution providers; to “recognise” them as such (i.e. Approved RESPs) To arrange long-term, interest free loans to identified/approved/qualified RESPs. To transfer existing distribution infrastructure to RESPs at no cost Issues of land allotment (where needed), right-of-way for distribution and freedom in fixation of tariffs/charges. Underwriting (additional) costs of distribution and civil works (sunk costs) To provide outright grant to bridge the gap in terms of viability.