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Global Status Report
Rural (Off-Grid) Renewable Energy / Other Productive Uses of Heat and Electricity
Productive uses of heat and electricity for small-scale industry,
agriculture, telecommunications, health, and education
in rural areas are a growing area of attention for applying
modern renewable energy technologies. Examples of industrial
applications include silk production, brick making,
rubber drying, handicraft production, sewing, welding, and
wood working. Examples of agricultural and food processing
applications include irrigation, food drying, grain mills,
stoves and ovens, ice making, livestock fences, and milk
chilling. Health applications include vaccine refrigeration
and lighting. Communication applications include village
cinema, telephone, computers, and broadcast radio. Other
community applications include school and street lighting,
and drinking water purification. Despite this diversity
of potential applications, existing projects are still small
demonstrations. For the most part, large-scale development
of these applications on sustainable or commercially replicable
terms has yet to occur.
Even as applications of renewable electricity for lighting,
water pumping, medical refrigeration, and motive power
are beginning to receive greater attention, application of
modern renewables to heating needs is still much less discussed
or practiced. Traditional biomass fuels are used to
produce heat and heat-related services such as cooking,
space heating, crop drying, roasting, agricultural processing,
kilns, ovens, and commercial food-processing. Applications
of solar heating and advanced biomass technologies are just
beginning to attract the attention of the development community.
Developing-country governments are focusing
more on these areas as well. For example, the Indian government
has launched comprehensive programs promoting
biomass for electricity, heat, and motive power in rural
areas, including combustion, co-generation, and gasification.
These rural energy programs target all forms of household,
community, and productive needs in hundreds of
rural districts.
A good example of applications in health and education
is the World Bank/GEF Uganda Energy for Rural Transformation
project. The project is providing energy for medical
equipment, staff quarters, lighting, cold chain, sterilizing,
and telecom, and demonstrating to the Ministry of Health
the viability of such applications. For education, solar PV
will power equipment for vocational training, lighting for
night classes, and staff housing. Other applications include
water pumping and small enterprises.Mexico’s "telesecundaria"
program is another good example. This program is
designed to enhance rural schools through distance education
programs, and many remote schools rely on solar PV
to power communications and other equipment for distance
learning. In Guatemala, Honduras, and Bolivia, a
new model for "telecenters" is emerging, combining publicservice
centers with for-profit telephone services.
Approaches to financing small and medium-scale enterprises
engaged in renewable energy-related productive business
have gained considerable attention in recent years
through programs like the UNEP/UN Foundation "rural
energy enterprise development" (REED) program in Africa,
Brazil, and China and other finance initiatives. These enterprises
are providing a variety of services and products,
including solar home systems, water pumping, solar crop
drying, biofuels-powered engines for grinding and milling,
solar bakeries, biomass briquettes and pellets, and other
income-generating uses. The number of such enterprises
is growing in rural areas, led by both donor programs and
greater access to commercial bank credit.
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