This document outlines a concept to redesign biogas digesters in Dar Es Salaam, Tanzania. The redesigned digesters would be more affordable and desirable by having a collapsible structure, attractive finishes, and improved usability. They would also co-generate heat and electricity for cooking and lighting. This adds value by lowering energy costs for users and allowing the power company to broker excess electricity production and trade carbon credits. The concept aims to benefit manufacturers, consumers, communities, and the power company by providing cleaner energy access while generating new income opportunities.

1. Colin BurrowsIndustrial Design Thesis ProjectGate 3: Concept ValidationOCAD University20101209

2. Dar Es Salaam2.8 million people

3. 70%living in unplanned settlements

4. ElectricityOnly 59%of people have access to

5. WasteNo Collection

6. Charcoal94%use for cooking

7. Estimated consumption in Dar Es Salaam is28579bags per day

8. The equivalent of 332hectaresof forest per day

9. Government losses more than$10,950,000 per yearCharcoal producers operate illegally& pay 0 taxes

10. Improving the Marketability of the Biogas Digester*(*it turns Food Waste into Cooking Fuel)

11. Thesis DirectionGo fromherecostToheredesirability

12. Thesis DirectionMake itmore desirable.Make itcheaper.Add Value.

13. Decreasing Cost

14. Howdo youmake itcheaper? share the cost

15. decrease cost of materials & production

16. decrease cost of installation & transport

17. Increase the opportunity costCollapsible Structure

18. Lighter Materials

19. Increasing Desirability

20. Howdo youmake itmore desirable? lower the cost

21. make it easier to use

22. make it seem safer

23. change the appearance and branding

24. have it create value & generate incomeHigh TechStylishSafe

25. Branded

26. Redesigned Digester

27. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

28. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

29. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

30. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

31. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

32. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

33. Redesigned DigesterCollapsible StructureBrand IdentityAttractive FinishInstructions & Warning LabelsImproved User InterfaceFactory Fittings

34. Redesigned Digester Experience

35. Redesigned Digester ExperienceUser cutsup foodfirstUserdoesn't

36. Redesigned Digester ExperienceUser poursfood intofunnelUser putsfood inbasket

37. Redesigned Digester ExperienceUserFlushesFeed PipeUser crankshandle

38. Redesigned Digester ExperienceEmptyoverflowBucketwhen fullDrip linerequires nomaintenance

39. Repositioning the ProductBiogasDigesterRedesignedBiogasDigestercostBiogasCo-GeneratorAddValuedesirability

40. Repositioning the ProductBiogasDigesterRedesignedBiogasDigestercostBiogasCo-Generatordesirability

41. Adding Value

42. Howdo youadd value? co-generate heat and electricity

43. lower electricity costs

44. generate carbon creditsA More Valuable End Product10.5kWh(105 hrs of light)2kg food(12 Apples) 3= 1m biogas = 36000btu =

45. A More Valuable End ProductSavingsper monthCharcoal$28Electricity$50VS.

46. Cogenerating Heat + ElectricityFly WheelStirling EngineFulcrumPistonCool AirDisplacerHot Air

47. Cogenerating Heat + Electricity

48. Cogenerating Heat + ElectricityElectrical ConnectionGas LineGeneratorCook Stove

49. Cogenerating Heat + ElectricityElectrical ConnectionFly WheelPistonHeat VentsAlternatorCook StoveGas Line

50. Electricity in Dar Es SalaamPower company sellspay-as-you-go cardsthrough local vendors.Customers activate themat home through their power meter box.

51. Cook Stove User Experience

52. Cook Stove User Experience

53. The SystemPower CompanySubsidizes the costof the digesterto the consumer

54. The SystemBiogas Digesterproduces clean burning fuelfrom food waste

55. The Systemusers createselectricitywhile cooking

56. The SystemAs they cookthe user refillsthe system &extendsthe durationof their power.

57. The SystemPower infrastructureis used as a vaultto bank the power

58. The SystemPower Coacts as broker,charging tosafely storethe power

59. What is the Business Opportunity?Brokering electricity$1.05(10% of 1/kWh)Per Day10.5kWh =- or –$383.25per year

60. What is the Business Opportunity?Carbon Trading

61. What is the Business Opportunity?Carbon Trading$$$$$$$$

62. What is the Business Opportunity?Carbon Trading$$$$$$$$

63. What is the Business Opportunity?31 tonne Carbon =1360 Digesters =2040m Biogas =$5

64. What is the Business Opportunity?365tonnes Carbon =per year$1,825per year- or -$523,045per year- or -$385 ea1360Digesters =5,212,200 kWh =per year$521,220per year

65. Who Benefits and How?The ManufacturerThe Consumer Outsources production

66. Concentrates on higher value activities, marketing & promotion

67. Partners with Power Co.

68. access to distribution network

69. Single B to B Client

70. Reduces cost of digester

71. Reduces cost of waste removal

72. Provides clean cooking fuel

73. Extends duration of electricityThe CommunityThe Power Company Captures lost tax revenue

74. Improved health conditions

75. Cleaner more attractive city

76. improved access to electricity

77. reduced deforestation

78. reduced greenhouse gas

79. Increases adoption of electricity

80. Gets people using more electricity

81. Creates a saleable commodity in the form of carbon offsets

82. Positions firm as an electricity broker

83. Reduces need to generate power Who Benefits and How?The ManufacturerThe Consumer Outsources production

84. Concentrates on higher value activities, marketing & promotion

85. Partners with Power Co.

86. Access to distribution network

87. Single B to B Client

88. Reduces cost of digester

89. Reduces cost of waste removal

90. Provides clean cooking fuel

91. Extends duration of electricityThe CommunityThe Power Company Captures lost tax revenue

92. Improved health conditions

93. Cleaner more attractive city

94. improved access to electricity

95. reduced deforestation

96. reduced greenhouse gas

97. Increases adoption of electricity

98. Gets people using more electricity

99. Creates a saleable commodity in the form of carbon offsets

100. Positions firm as an electricity broker

101. Reduces need to generate power Who Benefits and How?The ManufacturerThe Consumer Outsources production

102. Concentrates on higher value activities, marketing & promotion

103. Partners with Power Co.

104. access to distribution network

105. Single B to B Client

106. Reduces cost of digester

107. Reduces cost of waste removal

108. Provides clean cooking fuel

109. Extends duration of electricityThe CommunityThe Power Company Captures lost tax revenue

110. Improved health conditions

111. Cleaner more attractive city

112. improved access to electricity

113. reduced deforestation

114. reduced greenhouse gas

115. Increases adoption of electricity

116. Gets people using more electricity

117. Creates a saleable commodity in the form of carbon offsets

118. Positions firm as an electricity broker

119. Reduces need to generate power Who Benefits and How?The ManufacturerThe Consumer Outsources production

120. Concentrates on higher value activities, marketing & promotion

121. Partners with Power Co.

122. access to distribution network

123. Single B to B Client

124. Reduces cost of digester

125. Reduces cost of waste removal

126. Provides clean cooking fuel

127. Extends duration of electricityThe CommunityThe Power Company Captures lost tax revenue

128. Improved health conditions

129. Cleaner more attractive city

130. Improved access to electricity

131. Reduced deforestation

132. Reduced greenhouse gas

133. Increases adoption of electricity

134. Gets people using more electricity

135. Creates a saleable commodity in the form of carbon offsets

136. Positions firm as an electricity broker

137. Reduces need to generate power Who Benefits and How?The ManufacturerThe Consumer Outsources production

138. Concentrates on higher value activities, marketing & promotion

139. Partners with Power Co.

140. access to distribution network

141. Single B to B Client

142. Reduces cost of digester

143. Reduces cost of waste removal

144. Provides clean cooking fuel

145. Extends duration of electricityThank YouThe CommunityThe Power Company Captures lost tax revenue

146. Improved health conditions

147. Cleaner more attractive city

148. Improved access to electricity

149. Reduced deforestation

150. Reduced greenhouse gas

151. Increases adoption of electricity

152. Gets people using more electricity

153. Creates a saleable commodity in the form of carbon offsets

154. Positions firm as an electricity broker

155. Reduces need to generate power