1.2 Detalles de contacto de las personas de referencia e instituciones involucradas en la evaluación y la documentación de la Tecnología

Nombre de la(s) institución(es) que facilitaron la documentación/ evaluación de la Tecnología (si fuera relevante)

Deutsche Welthungerhilfe e. V. (Welthungerhilfe) - Tayikistán

1.3 Condiciones referidas al uso de datos documentados mediante WOCAT

El compilador y la/s persona(s) de referencia claves aceptan las condiciones acerca del uso de los datos documentados mediante WOCAT:

Sí

2.1 Breve descripción de la Tecnología

Definición de la Tecnología:

The implementation of several low cost energy efficiency measures to reduce the amount of organic material used as fuel within rural households.

2.2 Descripción detallada de la Tecnología

Descripción:

In many cases local inhabitants of rural areas depend heavily on locally available natural resources, contributing to, and accelerating deforestation. As a low cost fuel source, local households often use cow-dung and wood. Taking these from the local area contributes to decreased soil fertility and erosion processes. Most of the dung collected from livestock is burnt in a very inefficient manner for cooking, baking and heating purposes. Based upon assessments by Welthungerhilfe in 600 households (HH) who were using cow dung as the only fuel material, on average one HH uses 4.6 tons of cow dung annually when using traditional cooking stoves, 6 tons for heating and 4.5 tons for bread baking. This means almost 15.1 tons of cow dung is burnt annually per HH.

Using a simple modification of the traditional cooking stove, approximately 50 - 60% or 2.3 tons of fuel material can be saved. This saving can be further increased by the utilisation of a pressure cooker that decreases the cooking time by 50%. Not all local hot meals can be cooked with a pressure cooker but it can contribute to an additional saving of 0.7 ton of organic matter.

The introduction of a metal heat exchanger on the exhaust pipe of a cast iron stove can help save a household 3 tons of fuel material per year, the effectiveness can be further increased by the incorporation of bread baking compartment.

Further savings can be made by using straw, mud and wood to improve the thermal insulation of the exterior walls, ceiling and floor in the house.

Through the integration of all above measures approx 60% of the current usage rates of organic material used for fuel can be saved. In addition it will keep the house warmer for longer, reduce the smoke in the air, and help retain organic material in the soil.

Purpose of the Technology: The main objective of the energy efficiency technology is to address one of the root causes of the deforestation process and to improve soil fertility i.e. to decrease the demand from the local population for organic fuel. This project used a range of technologies to address this issue which in combination provided substantial savings in organic fuel.

Establishment / maintenance activities and inputs: Cooking stoves: For centuries local populations have been using traditional cooking stoves for cooking, especially during the warm seasons of the year. These were made from a mixture of mud and straw. The modification of these involves improving the aeration process during the burning of the fuel. This is achieved by putting a metallic cover with one inflow cutting and six small smoke outflow holes surrounding the cooking pot. The only input needed which is not locally available is the metallic cover.
Pressure cookers: As maintenance is required 1-2 times per season to keep the cooking stove functioning efficiently, the utilisation of pressure cookers can be easily integrated with the modified cooking stoves.
Heat exchangers: The heat exchangers installed on top of the iron ovens, can be produced by local tradesmen and need to be cleaned every 1-2 months. They have to be installed before the start of the winter season when the heating is needed.
House installation: The house insulation, using locally available materials does not need maintenance once it is installed. However, the storage of dry fruits or bread in the attic should be avoided as it could attract mice which can destroy the insulation.

Welhungerhilfe provided subsidies for all the above work, except for the heat exchangers.

Natural / human environment: The geographical area served by the project is mainly hill slopes, covered in low grade pasture fodder with wheat crops planted in loess soil. Although the soils have the potential to be very fertile, they are overused and not well managed and thus have become degraded and denuded. One of the main contributing factors to this is the removal of organic material from the biomass cycle. Trees, bushes and organic material is cut and collected to be used as fuel.

The main source of income in the area is from semi-subsistence farming, and the removal of organic material has a significant impact on their crops and livestock.

The houses are made from concrete foundations and mud bricks, these and the current stoves are all energy inefficient and fail to retain heat.

2.3 Fotografías de la Tecnología

2.5 País/ región/ lugares donde la Tecnología fue aplicada y que se hallan comprendidos por esta evaluación

2.6 Fecha de la implementación

Si no se conoce el año preciso, indique la fecha aproximada:

• hace menos de 10 años (recientemente)

2.7 Introducción de la Tecnología

Especifique cómo se introdujo la Tecnología:

• mediante proyectos/ intervenciones externas

Comentarios (tipo de proyecto, etc.):

Promotion of energy efficiency measures began in 2007 by Welthungerhilfe projects

3.2 Tipo(s) actuales de uso de la tierra donde se aplica la Tecnología

Comentarios:

Major land use problems (compiler’s opinion): The land in rural Tajikistan is becomming denuded due to the pressure for organic fertilisers used as a source of fuel for heating and cooking. This impacts on soil quailty, yields and soil stability. This issue is compounded by the relatively high price of mineral fertilisers.

Major land use problems (land users’ perception): Crop yields decrease.

3.6 Medidas MST que componen la Tecnología

Comentarios:

Main measures: structural measures

3.7 Principales tipos de degradación del suelo encarados con la Tecnología

Comentarios:

Main type of degradation addressed: Cn: fertility decline and reduced organic matter content

Secondary types of degradation addressed: Pc: compaction

Main causes of degradation: soil management (poor ploughing practices), deforestation / removal of natural vegetation (incl. forest fires) (deforestation), over-exploitation of vegetation for domestic use (removal of trees and bushes for fuel pruposes.), overgrazing (imbalance of carrying capacity and size of livestock herds.), disturbance of water cycle (infiltration / runoff) (reduced infiltration capacity.), poverty / wealth (local population have restricted funds)

Secondary causes of degradation: crop management (annual, perennial, tree/shrub) (monoculture), change of seasonal rainfall (more intensive heavy rainfall events), droughts (events occuring more frequently), population pressure (population is increasing), labour availability (external labour migration)

3.8 Prevención, reducción o restauración de la degradación del suelo

Especifique la meta de la Tecnología con relación a la degradación de la tierra:

• prevenir la degradación del suelo
• reducir la degradación del suelo

Comentarios:

Main goals: prevention of land degradation

Secondary goals: mitigation / reduction of land degradation

4.1 Dibujo técnico de la Tecnología

4.2 Información general sobre el cálculo de insumos y costos

otra / moneda nacional (especifique):

TJS

Si fuera relevante, indique la tasa de cambio de dólares americanos a la moneda local (ej. 1 U$ = 79.9 Reales Brasileros): 1 U$ =:

4,5

4.3 Actividades de establecimiento

	Actividad	Momento (estación)
1.	Cook stove modification	any
2.	Pressure cooker	any
3.	House insulation	once in the beginning
4.	heat exchanger	once in the beginning

4.4 Costos e insumos necesarios para el establecimiento

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	per stove	1,0	5,5	5,5	100,0
Mano de obra	Labour	per room	1,0	37,8	37,8	100,0
Material para plantas	Wheat straw	bales	12,0	4,9	58,8	100,0
Material de construcción	Metallic cover	per stove	1,0	5,1	5,1	34,0
Material de construcción	Earth	per stove	1,0	0,5	0,5	100,0
Material de construcción	Wooden lath	per room	1,0	72,0	72,0	15,0
Material de construcción	Nail, lime, brush, emalen	per room	1,0	30,75	30,75	100,0
Material de construcción	Veneer and glueing silicone	per room	1,0	43,8	43,8	100,0
Otros	Pressure cooker	piece	1,0	22,2	22,2	80,0
Otros	heat exchanger	per stove	1,0	30,0	30,0	100,0
Otros	Transportation cost		1,0	44,0	44,0	100,0
Costos totales para establecer la Tecnología					350,45
Costos totales para establecer la Tecnología en USD					77,88

Comentarios:

Duration of establishment phase: 12 month(s)

4.5 Actividades de establecimiento/ recurrentes

	Actividad	Momento/ frequencia
1.	adjustment of modified cook stove	twice per year
2.	cleaning of heat exchanger	twice per year

4.6 Costos e insumos necesarios para actividades de mantenimiento/ recurrentes (por año)

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	per stove	1,0	3,3	3,3	100,0
Indique los costos totales para mantenecer la Tecnología					3,3
Costos totales para mantener la Tecnología en USD					0,73

Comentarios:

Machinery/ tools: brush

The costs are based upon 2010 prices.

4.7 Factores más determinantes que afectan los costos:

Describa los factores más determinantes que afectan los costos:

The price of the construction materials are dependent on many different external factors, and prices are generally increasing seasonally and annually.

5.1 Clima

5.2 Topografía

5.3 Suelos

5.4 Disponibilidad y calidad de agua

5.5 Biodiversidad

Comentarios y especificaciones adicionales sobre biodiversidad:

Species diversity: medium, low

5.6 Las características de los usuarios de la tierra que aplican la Tecnología

Indique otras características relevantes de los usuarios de las tierras:

Land users applying the Technology are mainly common / average land users

Population density: 10-50 persons/km2

Annual population growth: 1% - 2%

90% of the land users are poor.
10% of the land users are poor.

Off-farm income specification: local inhabitants are in many cases dependent on remittances from Russia and other income generating activities.

5.7 Área promedio de la tierra usada por usuarios de tierra que aplican la Tecnología

5.8 Tenencia de tierra, uso de tierra y derechos de uso de agua

Tenencia de tierra:

• estado

Comentarios:

There are a variety of land user and water rights within the three districts, but they do not directly affect the implementation of the technologies.

5.9 Acceso a servicios e infraestructura

6.1 Impactos in situ demostrados por la Tecnología

Impactos socioeconómicos

Producción

Ingreso y costos

Impactos socioculturales

Impactos ecológicos

Suelo

Biodiversidad: vegetación, animales

Otros impactos ecológicos

6.3 Exposición y sensibilidad de la Tecnología al cambio climático gradual y a extremos relacionados al clima/ desastres (desde la percepción de los usuarios de tierras)

Cambio climático gradual

Cambio climático gradual

	Estación	Incremento o reducción	¿Cómo es que la tecnología soporta esto?
temperatura anual		incrementó	bien

Extremos (desastres) relacionados al clima

Desastres climatológicos:

	¿Cómo es que la tecnología soporta esto?
tormenta de lluvia local	no se sabe
tormenta de viento	no se sabe

Desastres climatológicos

	¿Cómo es que la tecnología soporta esto?
sequía	bien

Desastres hidrológicos

	¿Cómo es que la tecnología soporta esto?
inundación general (río)	no se sabe

Otras consecuencias relacionadas al clima

Otras consecuencias relacionadas al clima

	¿Cómo es que la tecnología soporta esto?
periodo reducido de crecimiento	bien

Comentarios:

The thermal could be modified to increase its thermal properties.

6.4 Análisis costo-beneficio

¿Cómo se comparan los beneficios con los costos de establecimiento (desde la perspectiva de los usuarios de tierra)?

¿Cómo se comparan los beneficios con los costos de mantenimiento/ recurrentes (desde la perspectiva de los usuarios de tierra)?

Comentarios:

As it uses mainly locally available materials, it is a low cost approach which increases energy efficiency and improves resource use.

6.5 Adopción de la Tecnología

Comentarios:

70% of land user families have adopted the Technology with external material support

1355 land user families have adopted the Technology with external material support

Comments on acceptance with external material support: The amount of the local's contribution to the project themselves was between 52.7% to 100%.

30% of land user families have adopted the Technology without any external material support

569 land user families have adopted the Technology without any external material support

Comments on spontaneous adoption: Fitting heat exchangers, adapting cooking stoves, and improving house thermal insulation are the main forms of technology that have been replicated in the above households.

There is a little trend towards spontaneous adoption of the Technology

Comments on adoption trend: This is restricted due to limited access to funds.

6.7 Fuerzas/ ventajas/ oportunidades de la Tecnología

Fuerzas/ ventajas/ oportunidades desde la perspectiva del usuario de la tierra
It is very affordable How can they be sustained / enhanced? By involving local relevant authorities and departments
It saves and minimises expenditures for electricity, gas, and firewood procurement
The rooms are warmer and I can cook bread inside and save more fuel.

Fuerzas/ ventajas/ oportunidades desde la perspectiva del compilador o de otra persona de referencia clave
It is a low cost measure using locally available materials. The heat exchanger can improve the heating capacity of the room threefold, for example. How can they be sustained / enhanced? replication rates could be increased through promotion to larger audiences with support of local authorities or by law.
It is environmental friendly and increases the amount of organic material that stays within the soil. How can they be sustained / enhanced? There could be further awareness raising of the benefits of keeping organic materials in the soil.
It saves time for collecting fire material wood and cow dung.
It presents an opportunity to increase land productivity through application of organic fertilisers
The technologies do not have a large initial financial cost and can be implemented progressively as funds become available. How can they be sustained / enhanced? Training of more local teachers to provide demonstrations to the community.

6.8 Debilidades/ desventajas/ riesgos de la Tecnología y formas de sobreponerse a ellos

Debilidades/ desventajas/ riesgos desde la perspectiva del usuario de la tierra	¿Cómo sobreponerse a ellas?
More labour needed to cut fuel into smaller pieces	Behavioural change

Debilidades/ desventajas/ riesgos desde la perspectiva del compilador o de otra persona de referencia clave	¿Cómo sobreponerse a ellas?
Not all meals can be cooked in a pressure cooker
Heat exchangers can get very hot for cooking purposes

7.1 Métodos/ fuentes de información

7.2 Vínculos a las publicaciones disponibles

Título, autor, año, ISBN:

Brochure "Soil improvement starts with efficient cook stoves! low cost options to increase energy efficiency in Southern Tajikistan"

¿Dónde se halla disponible? ¿Costo?

Weltgungerhilfe projects in Khatlon region, Temurmalik district

Título, autor, año, ISBN:

Welthungerhilfe project final narrative report (144-912)

¿Dónde se halla disponible? ¿Costo?

Weltgungerhilfe projects in Khatlon region, Temurmalik district