Biogas-Powered Evaporative Cooling for Uganda’s Dairy Industry

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Last modified by Stefan Eibisch on 2016-05-25. This is a wiki so please feel free to update information by clicking on "Edit with form".

Project title

Biogas-Powered Evaporative Cooling for Uganda’s Dairy Industry

Project country/region

☐ East Asia & Pacific
☐ Europe & Central Asia
☐ Latin America & The Carribean
☐ Middle East & North Africa
☐ North America
☐ South Asia
Sub-Saharan Africa - Uganda

Project organisation

University of Georgia Research Foundation (UGARF)

Project description


UGARF has developed a refrigeration unit powered on biogas—which is extracted from cow manure. The unit regenerates zeolite plates, which retain their capacity to capture water vapor from the evaporative milk chilling process. Partnered with Smallholder Fortunes, UGARF is refining the design of the refrigeration unit, and testing it with farmers in Uganda. UGARF will work with local manufacturers to secure financing and bring production of the units to commercial scale.


This project has numerous social, economic, and environmental benefits. Refrigeration units will benefit dairy farmers by decreasing milk spoilage and increasing production and profits. Captured biogas can be used for lighting and cooking—saving income that would otherwise be spent on kerosene, and replacing the use of wood and charcoal for cooking. Also, by extracting biogas from cow manure, greenhouse gas emissions from fermenting cow manure is mitigated.


The UGARF is a nonprofit entity housed within the University of Georgia (UGA) in the United States that enhances UGA’s excellence as a research and higher education institution. Smallholder Fortunes is a small-scale dairy farm located in Wakiso District, Uganda

Promethean Power Systems participated successfully in the PAEGC Initiative ( and was with its project ‘Biogas-Powered Evaporative Cooling for Uganda's Dairy Industry' among the winners of 2013.

Project related to following sources of energy

☐ Solar

☐ Biomass

☐ Biofuel


☐ Wind

☐ Geo-Thermal

☐ Hydro

☐ Energy Efficiency

☐ Other: /

Project primarily related to the following Commodity Groups

☐ Cereals

☐ Fruits and vegetables

☐ Nuts and berries

☐ Forage

Dairy products

☐ Meat products

☐ Oil Seeds

☐ Roots and Tubers

☐ Eggs

☐ Pulses

☐ Fiber Crops

☐ Forestry

☐ Sugars

☐ Stimulants

☐ Spices

☐ Other: /

Project primarily related to the following Agricultural Value Chain Steps

☐ Mechanization

☐ Efficiency of Operation

☐ Processing

☐ Transportation

☐ Controlled Atmosphere

Controlled Temperature

☐ Mechanical Sorting

☐ Preservation

☐ Other: /

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