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Please find below the judging results for your proposal.

Semi-Finalist Evaluation

Judges'' comments

SUBJECT: Climate CoLab Judging Results

Proposal: waste water = fuel, biogas & fertilizer!
Contest: Energy-Water Nexus

Thank you for participating in the 2015 Climate CoLab Energy-Water Nexus contest, and for the time you spent in creating and revising your entry.

The Judges have strongly considered your proposal in this second round of evaluation, and have chosen to not advance it as a Finalist for this contest.

We, the Judges and contest Fellows, are truly grateful for your contribution to the Climate CoLab and for your commitment to address climate change. Specific comments can be found below.

We encourage you to keep developing your work. Transfer it to the Proposal Workspace to re-open it, make edits, add collaborators, and even submit it to a future contest. You can do so by logging into your account, opening your proposal, selecting the Admin tab, and clicking “Move proposal”.

We hope you will stay involved in the Climate CoLab community. Please support and comment on proposals that have been named Finalists and vote for which proposal you would like to see nominated as the contest’s Popular Choice Winner.

If you have questions, please contact the Climate CoLab staff at

Keep up the great work. And thank you again for being a part of this mission to harness the world’s collective efforts to develop and share innovative climate change solutions.

2015 Climate CoLab Judges

The proposal works from a scientific perspective. There are serious concerns about the uniqueness of the proposed idea. It needs more analysis on the implementation and the actual costs of infrastructure, converting cars/buses to take advantage of the new fuel, and mapping some key facts. For example, it needs to analyze the actual potential of this energy source. Here are some ideas: how many plants could adopt this technology today? How many plants can be built in the next, say, 30 years if this technology is successful and consumers adopt it? What is the market for fertilizers? How can this fertilizer compete with current fertilizers? Second, the proposal provides no analysis of the costs. For example, it should analyze and provide the approximate cost to build a plant, convert a vehicle, etc.

The challenges are myriad and mostly non technical; they have to do with local capacities in developing countries, the enabling environment, the lack of proper markets for the use of treated sludge, etc.

Some people are doing this very well today. Many others are constrained, not due to technology, but to regulatory and business model barriers. This is something that should be pushed from a policy level, but not a technology solution right now.

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