Tomorrow’s Water: The UK Junior Water Prize

The UK Junior Water Prize is a national competition providing a global platform for the UK’s junior water innovators

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photo credit: thanks to our 2016 hosts Cranfield University


Students should submit a water-related project of proven environmental, scientific, social or technological significance. The winners from the UK competition go on to compete for the Stockholm Junior Water Prize (SJWP), an internationally renowned competition which gathers imaginative young minds from across the world.


Why enter the competition?

The UK Junior Water Prize offers a once in a lifetime experience for young people hoping to follow a STEM career. By entering you will the have chance to win an all-expenses paid week long cultural exchange to Stockholm to compete for the internationally renowned SJWP.

CIWEM provides professional qualifications for those working in water, environment and engineering careers and encourages STEM careers through accreditation of University courses across the UK. Winners of the competition will receive exclusive pre-university membership with CIWEM as well as the chance to attend our industry events.

Find out more about SJWP alumni in this short video:

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How to enter?

The competition is open to 15-20 year olds, specifically pre-university students. Entries can be from individual students up to teams of three. Students younger than 15 years if age can participate if they are going to be 15 by the start of World Water Week, held in August each year. School assignments are qualified for entry.

Key dates:

  • Entries for the 2017 competition will open in January 2017.
  • The closing date for entries is Monday 24th April 2017.
  • Judging for Tomorrow’s Water will take place on Tuesday 23rd May 2017 at Cranfield University to select the winning team from the UK. More detials will be provided once your application is received.
  • World Water Week and the Stockholm Junior Water Prize takes place 27th August to 1st September 2017.

An application guide is available for students and teachers to download here. An application form is available here. For more information or to submit and application please contact Vicky West on

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photo credit: Jonas Berg, official SJWP photographer

What do I win?

The Tomorrow’s Water winning team will qualify for an all-expenses paid trip to represent the UK and their school at the Stockholm Junior Water Prize competition. This is a fantastic opportunity to undertake a week-long international exchange programme including:

  • Join other students from 30 countries around the world to share your project ideas on global water issues
  • Attend a gala dinner with special guest and patron of the award HRH Crown Princess Victoria of Sweden
  • The chance to present your project at the international World Water Week conference to an audience of academics, researchers, politicians and the media
  • Become a SJWP alumni, enabling you to network with peers, sponsors and mentors from around the world
  • Gain fantastic CV experience for further study or starting a career after school

Tomorrow’s Water winners will receive a £300 grant for your school or college. SJWP winners also receive a cash prize – further details to be announced in 2017.

To find out more about the Stockholm Junior Water Prize visit their website here.


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We are currently seeking sponsors and supporters for the 2017 competition, for more information please contact Vicky West at CIWEM

Previous winners


Winners of the 2016 competition were Jennifer Rodgers and Anna Morris, both 16 from the Stephen Perse Foundation Senior School in Cambridge.

They presented their project idea, ‘Flow – integrated water systems for the home’, which aims to re-purpose water that runs out of baths, showers and sinks as toilet water using sensors. Toilets typically use 30% of total household water, presenting an important opportunity for water reuse.

Following a week long exchange to Stockholm to take part in the SJWP competition, Anna and Jennifer were nominated for the first ever Children’s Climate Prize. Their video can be viewed here.


Brothers Sebastian and Renatus Groothoff from Beech Grove School in Kent, emerged as the winners in 2015 for their project ‘Fish Out of Thin Air’.  They designed a new aquaponic system to produce a sustainable source of fish protein. Sebastian and Renatus proposed that such a system could relieve pressure from the fishing industry, specifically fish farming, on the ocean ecosystem.


Annabel Macklin from The Thomas Hardye School in Dorchester. Her project looked to find a chemical solution to the annual €300m cost of sea lice infestation to the Atlantic salmon industry, and to explore the effects that these chemicals could have on the surrounding environment.