Update: The winner of the Dar es Salaam Negawatt Challenge - STICLab LTD - has won the Global Negawatt Challenge competition at the Smart City Expo World Congress!

STICLab created a pre-paid water metering system that can be operated in two modes: as a Point of Sale, which can either offer mobile money or coin-based payment, and as a household pre-paid meter, which offers mobile money payment.

Update: The final challenge statements for the Dar es Salaam Negawatt Challenge. More information could be found through #NegawattDar

Water management, delivery, and conservation are growing challenges for rapidly urbanizing cities in East Africa. Dar es Salaam is no exception, its growing population is facing many challenges such as water quality, lack of information and reliable community water payment systems. These challenges are closely linked to inefficient infrastructure and use of resources, and unclear system incentives. In an attempt to mainstream green growth through improved water management and energy efficiency while relying on bottom-up citizen engagement, the World Bank’s Global ICT Practice launched the Negawatt Challenge to identify relevant hardware, software, and business solutions to tackle water/energy issues currently facing Dar es Salaam. To deliver the challenge, the World Bank has partnered with Buni Hub and KTH, both of which are centers for innovation and entrepreneurship.

Community engagement component

A series of meetups

Negawatt Community engagement program in Dar featured a series of monthly meetups from August until December 2015 convening water, energy, and ICT experts and influencers whoinform and engage the local technology and innovation community on ICT-enabled water/energy efficiency, green growth, and open innovation.

Stakeholder workshop
The aim of the workshop was to bring together stakeholders interested in green growth by ”making more for less” while addressing the possibility to increase efficiency in water and energy usage by innovating around locally identified problems that are given global solutions. Key questions for this workshop were:

  • How can local initiatives be given support for development?
  • What are the key factors hampering adequate water supply for the majority in the city?
  • How can an open data approach facilitate the innovation process?
  • What are the next steps to take?

The target group for the workshop was key water and energy stakeholders in the public sector, utilities, media, NGOs, and advocacy groups who are interested in green growth.

Acceleration programme

The Acceleration component was a continuation of the Negawatt Challenge Phase I (January-June 2015). It provided a skill and knowledge-building platform to prepare the two contest semi-finalist teams to bring their solutions to market and the chance to represent their city at the 2015 Smart City Expo World Congress in Barcelona, Spain.

The programme ran until mid-October when STICLab LTD was nominated as the winner of the Dar es Salaam Negawatt Challenge.



Innovation in water/energy sectors - Strategic Plan

December 18, 2015
@Kebby's hotel


Innovation in water/energy sectors - The role of media

December 15, 2015
@Kebby's hotel


Exploring different perspectives towards complex situation/challenges in water sector and Exploring different perspectives towards complex situation/challenges in energy sector

November 13, 2015 @08:30- followed by networking lunch
@Kebby's hotel (near CoICT)

stakeholder workshop

October 15, 2015 @09:00- followed by networking lunch
@Kebby's hotel (near CoICT)

Demo day

October 15, 2015 @14:00
@Kebby's hotel (near CoICT)


Innovation for Transformation in the Water and Energy Sectors

September 17, 2015


April 12 - 19, 2015
Evenings @BuniHub

negwatt weekend

March 27-29, 2015 @8am


March 10, 2015



Buni Hub is an open space at Tanzania Commission for Science and Technology (COSTECH) for Tanzania technologist’s community to foster innovation, entrepreneurship, and the culture of co-creation.

The space is free and open for anyone interested in collaborative learning and idea sharing for community development and sustainability in the ICT Sector. The space currently is home of over 400 registered users - mostly youth – who are using the space facilities and resources to work on their projects, works, businesses, and ideas.

The space offers a meeting and interacting space for start-up companies, freelancers and small-scale ICT entrepreneurs. We encourage peer-to-peer knowledge transfer and capacity building. Some of the community members are trainers who train others on different technology and non-technological topics.

Ali Hassan Mwinyi road, Kijitonyama, COSTECH (Sayansi-building),  Ground floor.

P.O. Box 4302, Dar es Salaam, Tanzania

KTH Royal Institute of Technology in Stockholm is the largest and oldest technical university in Sweden. No less than one-third of Sweden’s technical research and engineering education capacity at university level is provided by KTH. KTH is at the forefront of developing and implementing challenge-driven education.

KTH has an extensive network researchers and students at universities throughout Tanzania and has developed a week-long bootcamp-style program for the finalists of the Negawatt Weekend in collaboration with Buni Hub. The program leverages local and international instructors and will provide intensive training on business development, presentation skills, and the water sector.

Ramon Wyss, Professor of Theoretical Nuclear Physics and Vice President for International Affairs at KTH, managed the Negawatt Bootcamp program in Tanzania.




jumanne mtambalike


Jumanne Mtambalike is an expert in business development and technology entrepreneurship. He is a tech enthusiast, blogger, trainer and community reformer. 


BRian paul 


Brian Paul is a computer programmer (PHP, MySQL, C#, ASP.NET). As well, he is a sports enthusiast (football, basketball, and just about everything else).