**4.5 Industrial Heat Recovery Power (IHRP)**

Industrial heat recovery power represents a poorly known as renewable energy resource in the country, often unused and hence, often wasted resource in energy intensive industries. This resource can provide fuel-free electricity but has been neglected.

Industry heat recovery power use a wide variety of heat resources in applications such as cement, waste incinerators, pulp and paper mills, oil refineries, etc. The industrial applications for waste heat recovery do not require new sitting; the power unit can be installed within the boundaries of existing industrial site. IHRP does not influence the industrial process and does not interfere with the basic objective of production.

IHRP is not well known in the country, however, with the existing three cement industries, one paper mill (Mufindi Paper Mill) and Tipper oil refinery if harnessed they can contribute to the energy mix available in the country.


Table 11. Number of Wind mills in Tanzania (Source: Renewable Energy in East Africa – 2009)

### **4.6 Mini-hydropower sources**

Out of estimated 315 MW small hydro potential in Tanzania less than 8 MW have been exploited by installing two power plants. The Ministry of Energy and Minerals (MEM) through REA has been funding studies for small hydro power plants. Dar es Salaam Institute of Technology (DIT) has participated in conducting these studies covering several villages, district, and regions with potential of small hydro power plant development. The villages, district and regions visited include Ruvuma, Rukwa, Iringa, Kagera, Morogoro,

1 100 4.4 160 5.1 200 5.6 2 150 5.1 240 5.9 300 6.4 3 200 5.6 320 5.5 400 7.0 4 250 6.0 400 7.0 500 7.5 5 300 6.4 480 7.4 600 8.0 6 400 7.0 640 8.2 800 8.8 7 1000 9.4 1600 11.0 2000 11.9

Industrial heat recovery power represents a poorly known as renewable energy resource in the country, often unused and hence, often wasted resource in energy intensive industries.

Industry heat recovery power use a wide variety of heat resources in applications such as cement, waste incinerators, pulp and paper mills, oil refineries, etc. The industrial applications for waste heat recovery do not require new sitting; the power unit can be installed within the boundaries of existing industrial site. IHRP does not influence the

IHRP is not well known in the country, however, with the existing three cement industries, one paper mill (Mufindi Paper Mill) and Tipper oil refinery if harnessed they can contribute

**Wind Mills** 

Table 11. Number of Wind mills in Tanzania (Source: Renewable Energy in East Africa – 2009)

Out of estimated 315 MW small hydro potential in Tanzania less than 8 MW have been exploited by installing two power plants. The Ministry of Energy and Minerals (MEM) through REA has been funding studies for small hydro power plants. Dar es Salaam Institute of Technology (DIT) has participated in conducting these studies covering several villages, district, and regions with potential of small hydro power plant development. The villages, district and regions visited include Ruvuma, Rukwa, Iringa, Kagera, Morogoro,

**Wind Speed [m/s]** 

**Wind Power Density, [W/m]** 

**Wind Speed [m/s]** 

**Wind Power Density W/s** 

**Wind Power Class** 

**Wind Power Density, [W/m]** 

**Wind Speed [m/s]** 

Table 10. Wind Power Densities [Source Mmasi et al., 2001]

This resource can provide fuel-free electricity but has been neglected.

industrial process and does not interfere with the basic objective of production.

**4.5 Industrial Heat Recovery Power (IHRP)** 

to the energy mix available in the country.

Singida 36 Dodoma 25 Iringa 16 Shinyanga 6 Tabora 4 Arusha 4 Kilimanjaro 1 Mara 8

**4.6 Mini-hydropower sources** 

**Region Number of** 

Mbeya, Kigoma and Njoluma. Identified potential river sites for small hydro power generation are given in Table 12. Assessments of actual power available from the established sites are still being worked out. However, the established sites have the potential of generating enough electricity to spur rural electrification in the identified areas. Water falls from the identified area is shown in Figures 2 and 3.

Fig. 2. Water fall at Madaba in South-Western Tanzania

Fig. 3. Water falls for mini-hydro power at Chita-Kilombero

Renewable energy exploitation in the country is still at an initial stage with a limited number of project developers, promoter's finance providers; services contribute less than 1% of the energy balance. Biomass within the renewable energy section accounts for more than 89% of the cooking resource in rural Tanzania, but the budget allocated by the Government for renewable energy services including biomass is limited to less than 1% of the annual energy development budget of the Ministry of energy and Minerals (MEM).

Nevertheless, renewable energy applications in the country have a good potential for powering development goals considering their local availability potential, the limited energy per capital consumption and ever-hiking prices of imported fossil-fuel.

Renewable energy will be a catalyst of rural development in the near future. It will play a major role in generation of electricity to spur quick rural electrication. However this, will be accomplished if the existing technologies are improved and new affordable technologies are developed. The following technologies are result of the assessment process conducted in the country from 2006 to 2010 by the author. Some of the technologies are old but need improvement to increase their efficiencies. New technologies need testing and commissioning.


Table 12. Identified Potential River sites [Source REA-March 2010]
