1. PROPOSED EWB BOSTON PROFESSIONALS PROGRAM IN TANZANIA
SIEMENS VAI, WORCESTER
MAY 2011

10. IDEA FOR EWB PROGRAM Central hub for a group of families
Biogas plant and distribution - $1000
Cooking
Refrigerator?
Solar panels and distribution – $5 per watt
Light
Battery charging
Water pump?
Water well?

11. BENEFITS Clean indoor air Health No deforestation Improved light
Reading etc. in evening
Savings
Time for gathering wood (dung is closer)
Time of recharging cell phones
Cost of kerosene

12. CHALLENGES Efficient cheap design
Proof that it’s of benefit to the families
Funding (until self-sustaining)
Maintenance after EWB leaves
Business development
Local and national politics
Fitting in with tribal culture

13. IN 5 YEARS (OR MAYBE 10)
500 installed systems, with every one being used
Ten teams of EWB Boston engineers, each working in one village, responding to the unique requirements of that village
Local businesses supplying parts for new hubs and for maintenance
Good relationships with local and national governments and other NGO’s
Smooth supply of funding