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Research Article ISSN 2229 – 3795
ASIAN JOURNAL OF MANAGEMENT RESEARCH 457
Volume 2 Issue 1, 2011
Popularization of Biomass Briquettes- A means for Sustainable rural
Development Nandini Shekhar
Assistant Professor, Centre for Research – Projects, Christ University,
Hosur Road, Bangalore – 560029.
ABSTRACT
It is surprising that energy access was not one of the original Millennium Development Goals
and the UN has been slow in waking up to the centrality of energy in the poverty reduction
agenda. There is a huge current and growing demand to find alternative clean energy sources
that meet new legislation requirements to reduce emissions from fossil fuels. Agrowaste as a
source of energy in India shows great potential. The process of ‘Briquetting’ is the physical
transformation of loose raw material mostly made of agro waste like rice husks, bagasse,
ground nut shells etcetera and other organic materials like municipal solid waste into high
density fuel briquettes through a compacting process. The resultant form change increases
the calorific value (combustion efficiency) of the product as compared to loose material.
This paper analysis the issues connected with the production and use of briquettes and
highlights the huge untapped potential of its possible wide spread use. It also offers
suggestions to Corporates and NGOs to undertake these projects as an arm of their Corporate
Social Responsibility efforts.
Key Words: Agrowaste, Biomass, Briquettes, Corporate Social Responsibility, Rural
Development.
1. Introduction
Energy is the key factor in economic development of a country. Global energy use is rising
very rapidly, and as emerging markets continue to grow, build-out their vital infrastructure
and create the consumers of tomorrow, the world will continue to see energy demand
skyrocket. To that end, both investors and governments have been exploring solutions, such
as efficiency measures and renewable energy generation as a way to satiate that exploding
demand. The use of biomass residues and wastes for chemical and energy production was
first seriously investigated during the oil embargo of the 1970s.
Households in rural India are highly dependent on firewood as their main source of energy,
partly because non-biofuels tend to be expensive, and access to affordable fuel alternatives to
coal, gas, kerosene and electricity for cooking and heating is limited. Approximately 96% of
rural households are estimated to be using biofuels (NSSO 1997). These fuels dominate the
domestic sector and are primarily used for cooking. Fuelwood is the primary energy source
for cooking used by rural households (78%) (TERI 1999a). In actual volumes as well,
fuelwood ranks first, at 252.1 million tonnes, followed by dung-cakes, at 106.9 million tonnes
and agricultural residue, at 99.2 million tonnes of annual consumption (TERI 1992).
Similarly, the per capita consumption figures are also high for fuelwood at 250 kg, 50 kg for
Popularization of Biomass Briquettes- A means for Sustainable Rural Development
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animal dung and 134 kg for crop residues (NSSO 1997) This is further corroborated by the
energy consumption estimation given by NCAER (Natarajan 1997).
Production and consumption of almost any type of energy have environmental impacts.
Harvesting of fuelwood, in particular, contributes to deforestation, soil erosion, and
desertification. Use of fuelwood as an energy source can also contribute to the accumulation
of CO2, the main greenhouse gas, both because burning fuelwood produces CO2, and
because deforestation destroys an important CO2 sink. The use of such unprocessed biofuels
results in several hardships especially for women. In the case of bio fuel use, time spent and
hardship suffered in fuel collection, health impact suffered from air pollution, increased
burden of cleaning utensils, walls, floors and clothes, and ecological changes are severe
negative consequences. Mostly women and children transport wood and other biomass fuels
as head loads. The wood fuel and other biomass are burnt in inefficient traditional mud stoves
(~20% efficiency) in poorly ventilated kitchens. Also, use of biomass in traditional stoves
exposes the users, mainly women and children, to high levels of indoor air pollution. Smoke-
induced respiratory problems in communities cause substantial economic and social
constraints and an increasing financial health-cost burden.
Unavailability of clean energy sources leads to many such problems that are not sufficiently
highlighted or analyzed. Decentralized solutions offering cheap access to rural energy,
employment and income generating opportunities to the rural population are scarce. While a
number of technological approaches and implementation proposals exist, a sustainable
introduction of renewable energy solutions into rural communities hinges on appropriate
business models that include a long-term commitment from a commercially interested and
socially aware partner. Models for such a sustainable approach to renewable energy
introduction have not yet been developed.
This paper begins with a short description of the status of biomass energy – both global as
well as local, and attempts to study Briquetting as a means for off grid source of energy for
heating and lighting, thereby offering a viable and sustainable solution to many of these
issues.
2. Status of Biomass Energy
Until the middle of 19th century, biomass dominated the global energy supply with a seventy
percent share (Grubler and Nakicenovic, 1988). Among the biomass energy sources, wood
fuels are the most prominent. With rapid increase in fossil fuel use, the share of biomass in
total energy declined steadily through substitution by coal in the nineteenth century and later
by refined oil and gas during the twentieth century (Figure 1). Despite its declining share in
energy, global consumption of wood energy has continued to grow. During 1974 to 1994,
global wood consumption for energy grew annually by over 2 percent rate. Presently, the
biomass sources contribute 14% of global energy and 38% of energy in developing countries
(Woods and Hall, 1994).
The above figure 1 shows the significant contribution of renewable energy in the total fuel
consumption statistics. While oil, coal and gas are non renewable and are not clean sources
of energy, a concentrated effort should be made to harness the renewable segment as a
continuous and clean source of energy.
Biomass energy currently plays a major role in meeting the present energy needs of
developing countries. A number of authors (Beyea et al., 1991), have also expressed the
Popularization of Biomass Briquettes- A means for Sustainable Rural Development
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view that biomass has the potential to meet the additional energy demands of urban and
industrial sectors, thereby making a significant contribution to the economic advancement of
developing countries. Biomass can also offer an immediate solution for the reduction of the
CO2 content in the atmosphere. It has three other main advantages: firstly its availability can
be nearly unlimited, secondly it is locally produced and thirdly the fact that it can be used
essentially without damage to the environment. In addition to its positive global effect by
comparison with other sources of energy, it presents no risk of major accidents, as nuclear
and oil energy do.
Figure 1: 2003 Fuel Shares of World Total Primary Energy Supply
Source "RENEWABLES IN GLOBAL ENERGY SUPPLY", International Energy Agency,
2006.
** Geothermal, solar, wind, tide/wave/ocean.
*** Includes non-renewable waste.
Table 1: People (In Millions) relying on Traditional Biomass
Countries 2004 2015 2030
Sub Saharan Africa 575 627 720
North Africa 4 5 5
India 740 777 782
China 480 453 394
Indonesia 156 171 180
Rest of Africa 489 521 561
Brazil 23 26 27
Rest of Latin America 60 60 58
TOTAL 2528 2640 2727
# Source: International Energy Agency, 2006.
Use of firewood and cooking fuel is generally expected to go down along with an increase in
income and a relatively higher use of other cleaner cooking fuels like kerosene, gas, and
Popularization of Biomass Briquettes- A means for Sustainable Rural Development
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electricity. However, due to the dynamics of the price rise during last 15 years, a sharp
increase in the price of commercial fuels (kerosene, coal, and charcoal), has forced even the
urban poor of India to use fuelwood for cooking food (World Resources 1994, p.93). Table 1
shows the projection by The International Energy Agency, 2006 for the increasing number of
people who will continue to rely on traditional biomass worldwide.
Fuelwood still serves as the major source of energy in the rural areas and the business of
fuelwood collection is the livelihood most resorted to for millions of people. Fuelwood
collection as a livelihood strategy is a strong indicator of severe rural distress, ecological
degradation and the failure of agriculture to sustain the rural economy. For many it is a sole
survival option though it generates only nominal monetary gains. Fuelwood collection is not
a legitimate forestry activity in India despite its economic importance to rural dwellers and
significance from rural livelihood perspectives. (Status report on use of fuelwood in India,
2010).
Biomass briquettes may hold the answer for emerging and developing countries, as well as
countries which are more established. In many third world nations biomass such as wood,
grass, and other plant matter is used to cook with, the only difference is that the briquettes
made from biomass are extremely compressed, so that they will provide a lot more heat and
energy than loose biomass materials will. There is no set formula for biomass briquettes to be
used as biomass energy sources. Instead the briquettes are made from available biomass, and
this will change from area to area. This allows for biomass energy generation that does not
require much transportation of purchased materials from a distant location.
If this new role is to be achieved within the context of sustainable development, it is
important for a developing country such as India to achieve both sustainable biomass fuel
production and the more efficient utilisation of biomass. However, in order for biomass to
make a significant impact as a fuel there is a need to improve and promote state-of-the-art
technologies.
India’s search for new and renewable energy resources that would ensure sustainable
development and energy security began in early 70’s of the last century. Consequently, use of
various renewable energy resources and efficient use of energy were identified as the two
thrust areas of the sustainable development. Policy measures aim at overall development and
promotion of renewable energy technologies (RETs) and applications. Table 2 shows the
implementation of various renewable energy programmes in various states of India.
Table 2: Status of Various Renewable Energy Programmes in Various States of India
State-wise Cumulative Achievements of Decentralised/Off-Grid Renewable Energy
Systems/Devices under Various Renewable
Energy Programme in India - Part I
(As on 31.3.2010)
Biomass Gasifiers
(KW) Solar Photovoltaic System
States/UTs
Biogas
Plants
(Nos.) (Rural) (Industrial)
Waste
to
Energ
y
(KW)
Street
Lightin
g
System
(Nos.)
Home
Lightin
g
System
(Nos.)
Solar
Lantern
s (Nos.)
Power
Plant
(KWp)
Andhra 457938 - 16681 4.95 35799 1957 3914 213.30
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Pradesh
Arunachal
Pradesh 2957 1800 - - 13937 7120 1071 17.10
Assam 81592 - - - 1211 5870 98 7.50
Bihar 125888 1650 3440 - 50117 3170 690 -
Chhattisgarh 32050 500 1210 - 3192 7211 1889 99.72
Goa 3893 - - - 1027 362 463 1.72
Gujarat 411950 810 19420 8.4 31603 9231 2004 100.50
Haryana 54083 300 1963 - 71646 28213 9878 434.40
Himachal
Pradesh 45716 - - - 22970 16840 2994 1.50
Jammu and
Kashmir 2489 - - - 28672 23083 5596 175.60
Jharkhand 4933 180 250 - 16374 4314 620 -
Karnataka 418759 1157 6297 3 7334 28128 2271 29.41
Kerala 126463 - - - 41181 32326 1090 44.70
Madhya
Pradesh 295580 211 7537 0.1 9444 2651 6054 22.40
Maharashtra 780527 - 6950 5.11 68683 1972 5471 6.44
Manipur 2128 - - - 3883 2850 370 28.00
Meghalaya 6661 - 250 - 24875 7840 1273 50.50
Mizoram 3820 200 - - 5812 3045 431 109.00
Nagaland 4153 1480 - - 6317 720 271 6.00
Orissa 239818 - 270 0.02 9882 5156 5819 74.52
Punjab 105289 - - 1.58 17495 8620 4337 121.00
Rajasthan 67348 33 2071 - 4716 67305 6632 25.80
Sikkim 7333 - - - 2470 3890 212 14.70
Tamil Nadu 216516 2586 6180 4.73 16818 1557 5885 39.50
Tripura 2793 1000 - - 42360 26066 773 24.57
Uttar Pradesh 422269 80 18730 17.31 51683 92124 4117 129.20
Uttarakhand 10508 - 250 1.52 64023 91307 7673 80.03
West Bengal 318510 700 16450 - 3662 111090 27512 675.00
Andaman
and Nicobar
Islands
137 - - - 6296 405 358 167.00
Chandigarh 97 - - - 1675 275 0 -
Dadra and
Nagar Haveli 169 - - - 0 0 0 -
Daman and
Diu - - - - 0 0 0 -
Delhi 679 - - - 4753 0 301 80.00
Lakshadweep - - - - 0 0 0 85.00
Puducherry 578 600 - - 1637 25 417 -
Others* - - - 0 125797 8584 9150 58.00
India 4253624 13287 107949 46.72 797344 603307 119634 2922.11
Source:
http://www.indiastat.com/table/power/26/nonconventionalenergy/184/502108/data.aspx
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It is evident from Table 2 that the Waste to Energy Programme in practically all the Indian
States has been grossly underutilized and there is a lot of scope for scientific and
technological improvements in that area. Besides, its flexibility and applications are
immense as regarding the current problems of rural employment, cheap fuel for household
purposes, sustainable livelihoods and even rural electrification.
Of the various renewable energy sources, bio-residues, of which agricultural residues form a
major component, can be most easily utilized to reduce the consumption of wood fuel,
blamed partly in some areas as a factor in deforestation. (Hosier and Svenningson, 1987).
Since most developing countries’ economies are still primarily agriculturally based, they
produce huge quantities of agricultural residues which provide an enormous untapped fuel
resource. For example, in India there is a large, underutilized supply of agro-processing
residues: around 49 million tonnes per annum (National Productivity Council, 1987).
Figure 2: Biomass burning estimates for India, for 1996-97
Source: http://www.cese.iitb.ac.in/arl/eminv/bm_em1.htm
As Figure 3 shows, biomass continues to be the major source of cheap energy in millions of
Indian homes. To make use of this abundant and sustainable source there is an urgent
necessity to innovate new technologies for efficient energy production.
Figure 3: Fuel Mix in Household energy use in India
Source: United Nations Statistics Division
Popularization of Biomass Briquettes- A means for Sustainable Rural Development
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About 72 per cent of India's population lives in rural areas, where biomass is the primary
source of energy. In 1995, biomass provided 77 per cent of household energy consumption,
liquid fuels 18 per cent, and electricity 5 per cent. Over the previous decade, per capita
household energy consumption had increased modestly, mostly due to increases in electricity
and liquid fuels, while biomass consumption has remained constant. Solid fuel consumption
has declined to less than one per cent (Figure 3).
However, a major disadvantage of agricultural residues as a fuel is their low bulk density,
which makes handling difficult, transport and storage expensive, and gives rise to poor
combustion properties. However, these problems can be overcome by compacting, with a
compression ratio of approximately 7:1, the loose biomass to form briquettes. (Grover and
Mishra, 1996). The opportunity to utilize more efficiently agricultural residues, with a
reduction in pollution levels, has in recent years aroused the interest of developing countries,
as well as some industrialized ones, in briquetting.
3. Conversion of Biomass to Energy Source
Generally, biomass can be defined as renewable organic materials that contain energy in a
chemical form that can be converted to fuel. Biomass includes all kinds of vegetative and
organic waste. Good examples of biomass are (i) agricultural waste left behind in fields after
harvesting (ii) plant material left in the forest after collection of timber (iii) bagasse in the
sugar industry (iv) rice husk in rice mills (v) sawdust in timber mills (vi) groundnut shells
(vii) municipal solid waste (MSW) (viii) energy crops that are separately cultivated for their
fuel content. In rural India, 370 m tonnes of agrowaste are generated annually, out of which
cotton, jute, maize and sugar mill waste make 50 m tonnes, while rice husk, bagasse, sawdust
and groundnut shells make another 50 tonnes.(Ghosh, K.P., 2002).
Bioenergy already provides the main source of energy for heating and cooking for many
millions of people in rural communities. Where adequate sources of biomass raw materials
are available – for example from crop or forest residues – then these can also be used to
generate electricity. This can be done in conjunction with larger plants which also use energy
to process crops (for example the use of bagasse in sugar cane production). Alternatively
smaller-scale systems based on biomass combustion or small-scale gasification can be used to
generate electricity for local use. Moreover, biofuels such as non-edible straight vegetable
oils (SVOs) produced from plants like Jatropha, can be directly used for transport
applications and decentralized power generation or converted to biodiesel and blended with
petro-diesel.
3.1 The briquetting system
Due to their heterogeneous nature, biomass materials possess inherently low bulk densities,
and uneven and troublesome characteristics thus, it is difficult to efficiently handle large
quantities of most feed stocks. The process of compaction of residues into a product of higher
density than the original raw material is known as densification or briquetting. By briquetting,
voluminous biomasses are compacted and given a definite shape and size. Densification has
aroused a great deal of interest in developing countries all over the world lately as a technique
for upgrading of residues as energy sources. Converting residues into a densified form has the
following advantages:
1. the process increases the net calorific value per unit volume
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2. densified product is easy to transport and store
3. the process helps to solve the problem of residue disposal
4. the fuel produced is uniform in size and quality
Figure 4: The basic process
There are various ways by which biomass can be converted into sources of energy. Some of
them are (1) Direct combustion of woody biomass to produce heat, steam and electricity. (2)
Pyrolysis to produce oils, fuel gas, char and chemical feed stock. (3) Thermochemical
process to produce gaseous and liquid fuel (4) Briquetting the biomass and its combustion to
produce heat, steam and electricity. Briquettes have high density and high calorific value
(varying between 3110 and 4600 kcal/kg) compared to their raw form.
3.2 A brief history of briquetting in India
Since the beginning of the 1980s there have been three different types of briquetting
technologies introduced into India – PARU, Screw Extruder and Piston Press. A number of
companies were licensed to produce the PARU (Korean company) equipment. Between
1982 and 1986 seventy entrepreneurs bought the technology. All but six or seven of these
plants became non functional within 3 months to 2 years of start up, and there are now none
in operation. The high failure rate was attributed to the licensees’ using inferior materials in
the construction of the equipment (to increase their profit margins) and altering design
without consulting the developer. Lack of operating instructions, insufficient training of
operators, and inadequate maintenance and management were also contributing factors.
Entrepreneurs in south India imported twenty screw extruders from Taiwan. Although the
briquettes were well accepted by the customers, there was excessive wear in the press due to
the use of rice husk (a particularly abrasive material) as the feedstock. (Clancy, 2001)
The Screw Extruder is considered to be more appropriate to the Indian power supply situation
since the down time associated with power disruption is significantly less than that for a
piston press (half our compared to four hours). The disadvantage of this type of press is the
higher investment costs compared to the piston press and the need for skilled welding to
repair the screw. The piston press is the technology that has been most widely used on
commercial basis in India with any degree of success. The technology was first introduced in
India in 1981 with the importation of a piston press produced by a Swiss company, Fred
Haussmann Corporation. Although a few more Haussmann presses were imported, there was
no major importation since the costs were prohibitive. However, a number of manufacturers
saw an opportunity of producing a product with a good market potential. In 1993, thirty five
plants were identified using this indigenously manufactured equipment. Plant owners
however reported a range of operating experiences and not all plants were functioning
Popularization of Biomass Briquettes- A means for Sustainable Rural Development
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profitably. (Clancy, 2001). Figure 5 depicts some of the frequent problems of briquetting
plants in India which has resulted in underutilization of this technology for rural development.
Figure 5: Common Problems in Briquetting Plants
Sources: Noordman(1992), Post (1995)
4. Research methodology
This paper is based on the findings of a personal visit to a Briquetting plant on the outskirts of
Mysore, Karnataka, India. Open ended extensive interviews were carried out with the owner
and labourers of the unit. Visual Observation was also used to verify some of the statements.
This study has also been complemented by several inputs from publicly available information,
and analyses the issues concerning the manufacturing and problems and prospects of usage of
briquettes as a partial replacement for fossil fuels in India.
5. Findings
A visit to the unit near Mysore yielded a lot of information on the current status of briquette
manufacturing. The major findings are:
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1. Raw material used- Coffee waste, paddy husk, groundnut husk & other bio waste.
2. Technology used (type of machine) - 20 year old technology: Press Compressor
/Drier cum moulder.
3. Maintenance required and availability of spare parts- depends on usage once
in every 6 months; spares are freely available and can be procured locally.
4. Marketing prospects - both local and exports- Domestic markets only - used in
furnace viz. paper mills and the company is at present looking out for selling
carbon credits.
5. Labour required- This is an SSI unit. 5 semi skilled personnel are adequate.
But since briquetting plants are located in rural areas, fluctuations in labour
availability should hardly come as a surprise. On the job training was provided
for the employees.
6. Storage space - ware house of min. 10000 sq ft. is required as raw material can be
procured only after harvest and needs a large storage space due to its bulky nature.
7. Water requirement. - Can it be recycled and reused? The answer was in the
affirmative.
8. Power - Substantial supply is available in industrial areas but not in rural areas
where the supply is single phase.
9. Any other requirements- The owner agreed to the necessity to evolve better
strategy, innovation, and improve on cost and technology.
The owner was further quizzed on the following
1. Do they innovate in terms of raw material? Because it appears there is seasonal
availability of raw material. The answer was “no”.
2. What is the pretreatment required for different types of raw material? For this he
answered that the moisture content has to be removed irrespective of the raw
material they were using.
3. Is the machine locally manufactured? ..yes it was procured locally
4. The owner was quite clear when he said that not much innovation has happened
regarding the technology. The technology being used was 20 years old.
5. What about household cooking in rural areas? Has this market been
explored? For which he answered “ yes by Swami Vivekananda Youth
Movement in Tamil Nadu”
6. What about technology transfer and training in manufacture for local farmers as
they can have in house production of raw material? Also employment generation
in rural areas? He answered that nothing has been done in this area as yet, though
he agreed there was a lot of scope for that.
Based on these findings obtained during the personal interview, the following issues have
been highlighted in this sector.
5.1 Issues in the sector
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5.1.1 Raw Material
Briquettes can be made from anything that burns without producing toxic ash or fumes. The
raw material requires sufficient storage space thereby increasing the capital cost of
briquetting projects. Moisture content is the most important parameter of the raw material (a
key parameter influencing briquetted quality and functioning of the press, and hence
company profitability), while equally important are the particle size and contamination by
extraneous material like stones. These requirements vary with the technology used. To
enable the feedstock to meet press specifications requires good performance from the
auxiliary equipment (dryer, grinder, sieve) and that their capacities match those of the press.
The raw materials have to reach the plant at an appropriate rate, which keeps storage costs
down, but should not create a bottleneck and reduce capacity utilisation. This is a more
difficult problem for firms that are not annexed to a major producer of residues, such as a
sawmill.
The choice of raw material has a significant influence on the viability of the plant. In
addition to basic engineering knowledge, some knowledge regarding densification of
materials would enable a better evaluation of the viability of the plant. This would appear to
be in contradiction with Dalhman and Westphal (1982) who stated that only formal education
is required to carry out pre-investment feasibility studies.
5.1.2 Marketing
The main problem associated with marketing is the seasonal requirements of briquettes by the
end users like brick kiln and tea industries. The local market for biomass briquettes includes
industrial users most of which are processing plants that have boilers. Briquettes sold in
supermarkets are usually used for household purposes like barbecuing and roasting. It is
reported that the volume of supply of biomass briquettes nationwide is still very small.
Apparently, there is a low demand for the product due to: (a) low level of awareness about
the product and (b) lower price and abundant supply of fuel wood and charcoal. The industry
faces problems due to non-availability of sufficient working capital necessary to store the
briquettes and sell it in periods of fuel shortage.
Our study indicated that the following markets have yet to be tapped or have been only
partially entered into leaving a huge gap in supply and demand.(Refer Table 3). With the
price of petroleum products sky rocketing, this appears to be a profitable and ecofriendly
venture. Also, the briquettes have to meet users’ requirements based on which the market for
briquettes have to be developed.
Table 3: Unexplored or partially explored markets for briquettes
Boilers For Steam Generation
Food processing
industries
Distilleries, bakeries, canteens, restaurants and drying
etc.
Agro-products Tobacco curing, tea drying, oil milling etc
Textile process houses Dyeing, bleaching etc.
Clay products Brick kilns, tile making, pot firing etc
Domestic/Hospitals Cooking and water heating
Gasification Fuel for gasifiers
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5.1.3 Promoters
In India, most of the manufacturers of biomass briquettes are first generation entrepreneurs.
Further, most of the units are family concerns. Lack of professional management of the plant
has been identified as a major drawback impeding the commercial success of this technology.
Lack of sustainable Business Models for renewable energy solutions in rural communities has
also resulted in lack of commercial viability for this promising product.
A briquetting plant cannot be operated successfully with only formalized knowledge, that is,
knowledge that is either experience based or externally formulated (for example, from the
equipment producer or consultants). It requires know-how of input requirements and an
ability to follow a detailed prescription of the process operations. The firm should have
capabilities to identify differences in product quality to assess the commercial value of the
product. This is possible if the process technology has been well developed and is a
commercially mature technology.
Linkage capabilities are the common communication skills needed to transmit information,
skills and technology to, and receive from, all the external parties the firm interacts with, for
example, suppliers, contractors, consultants and technology institutes. These need to be
developed among promoters. Also documentation should be given special attention. The
prospective promoters have an opportunity to increase their knowledge of the functioning of
such an industry through suitable training programmes as this will reduce considerable cost
and time in maintaining the project.
5.1.4 Expertise in machine manufacturing
The credentials of the suppliers in terms of quality of the machine and performance standards
are vital factors to be considered when selecting the equipment supplier. Stress calculations
of the machines also have to be evaluated while choosing the machine.
The two most common presses found in India at present are the piston press and the screw
press. The piston press produces briquettes that are prone to breaking. The screw press
produces briquettes that are stronger in terms of mechanical strength and resistance to
moisture absorption, which are important parameters for transport, handling and storage.
Screw press briquettes have better combustion characteristics than the piston press and they
can be converted into charcoal giving them a wider market potential.
5.1.5 Low Capacity Utilisation
The plant was operating at 67% capacity which is significantly less than 75% considered
feasible by expert opinion. Low capacity utilisation is not uncommon in developing
countries, the reason being both exogenous to the firm and in-house (Katrak, 1997). The
reasons for the low capacity utilisation in the briquetting industry in India were identified as
follows:
Exogenous problems
• Power shortages
• Monsoon
• Non availability of spare parts locally
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In-House Problems:
1. Lack of Working Capital
2. Lack of customers
3. Mis-match of auxiliary equipment
4. Lack of preventive maintenance
5. Organizational Inefficiency.
5.1.6 Carbon Credits
Renewable energy initiatives is a good medium for companies, organizations and individuals
looking to reduce or offset their global warming impact caused by greenhouse gas emissions
by the generation of carbon credits for sale in the global Voluntary and Compliance market.
Sustainable and clean renewable energy systems can be used to eliminate or reduce carbon
dioxide emissions by replacing old diesel, oil, gas or coal fired electric machinery which
emits greenhouse gases that produce global warming. Carbon sequestration credits or offsets
are calculated by the amount of carbon emissions that would have been emitted if a diesel or
other traditional polluting electric equipment was used to produce the same amount of
electricity. Companies and electric utilities in countries can buy these emission reduction
carbon credits to replace the emissions from their coal burning electric power plants to meet
regulatory requirements.
6. Discussion and conclusions
The technique for Briquetting is not complex in the sense that it does not demand
microelectronics or highly sophisticated operating conditions or techniques. It uses local
materials as process inputs, and the equipment can be made in standard engineering
workshops. Briquetting can therefore be considered as a particularly appropriate technology
for indigenous production and use in rural areas of a developing country such as India.
Another advantage of biomass includes the fact that most biomass materials have acted as a
carbon sink while growing. When trees and plants grow, they absorb carbon from the
atmosphere and are a natural carbon sink as long as they are alive and growing. Biomass
energy is also much cleaner to use, because greenhouse gases are reduced significantly. This
means that bio energy use may help slow down global warming, and minimize air pollution.
Biomass alternative energy may be one of the most commonly used energy sources of the
future. This is because the world will always have municipal waste and waste food, and
unless these biomass sources are used for energy they will end up taking space in a landfill
somewhere and causing an increase in greenhouse gases and air pollution.
Apart from the energy and emissions saved, it can serve social and economic functions as
well. Biomass briquetting provides additional income to farmers and village women creates
jobs and can thereby enhance sustainable rural development in the future.
Biomass alternative energy can also be obtained from plants like rapeseed, which can be
grown on land that is not fit for any farming or agriculture use, and therefore the potential for
high returns is basically unlimited. There have recently been some efforts to explore
commercial utility of weeds like Lantana, Parthenium and, Eupatorium etc that have caused
havoc in terms of social and ecological losses. In many places, villagers had to shift their
hamlets because of severe infestation of Lantana. Weed as a new set of biomass cannot be
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overlooked particularly in wake of alarming depletion of forest biomass. Growing scarcity of
latter has prohibited several community day to day utility of biomass. Forestry management
strategy should now predominantly include weed management through involvement of local
community. It is equally true that wildly growing weed can only be controlled through large
number of community involvement and that too by subjecting it to local and commercial
utility.
Briquetting technology is yet to get a strong foothold in many developing countries because
of the technical constraints involved and the lack of knowledge to adapt the technology to
suit local conditions. Overcoming the many operational problems associated with this
technology and ensuring the quality of the raw material used are crucial factors in
determining its commercial success.
The most serious deficiency in this industry is:
1. Lack of basic business skills (for example, failure to carry out feasibility studies)
2. Lack of partially derived knowledge ( for example, failure to understand key
parameters that affected product quality)
3. Lack of Organizational skills (for example, failure to ensure sufficient supply of raw
materials); and
4. Poor communication with suppliers and customers (for example, failure to size and
match equipment components).
These weaknesses reinforce each other to inhibit innovation. Among the causes or barriers to
innovation identified by Cooke and Mayes (1996) are:
1. Management attitudes
2. Poor information flows
3. Weak links with customers and suppliers
This has been identified in general in this industry (Clancy, 2001).
The briquetting industry falls under two priority sectors within government policy in India:
energy and small scale industries. A number of financial and tax incentives, both at national
and state level are available to entrepreneurs.
The indigenous technology presented to the Indian market is not mature, although on the
world market there is a choice of technologies and suppliers being used by profitable
companies. Machine manufacturers will need to provide more support to the briquetting
entrepreneurs, which will result in client satisfaction and innovation.
Plants should be annexed to agro processing industries, for ease of procuring raw material,
avoiding costs for transportation and storage facilities which help in making the project more
viable.
The prospect of biomass-based rural electrification and power generation in India is very
bright, but the picture at present in the different states is not very encouraging. The people of
India can have eco-friendly power from biomass if the States, with guidance and assistance
from the Centre, lay stress on biomass-based power generation. The electricity produced
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with the use of these briquettes is very green, with almost no pollution or greenhouse gas
emissions. Also, Biomass power plants can strengthen the local economy, by creating more
jobs, higher taxes paid, and less transportation for the biomass energy. This means that this
alternative and renewable energy source not only produces green electricity but also can be
domestically produced in local areas.
There is an opportunity for Corporates and NGOs to help innovate and use this technology to
meet financial, environmental and social challenges, and the ability to find and implement
sustainable solutions.
Biomass alternative energy offers a unique opportunity for investors, because once this
technology takes off on a wide scale investors who got in early will see high returns on their
investment capital, as well as opportunities for trading in carbon neutral credits.
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