Latest News

Kelda Technology selected for Unreasonable Impact UK to tackle global problem of unemployment with its sustainable business model

 27 November 2017 – LONDON – After a rigorous selection process involving hundreds of world-class companies from across the UK, Kelda Technology has been chosen to join ten other growth-stage ventures in the 2017 Unreasonable Impact UK programme.

Unreasonable Impact is an innovative multi-year partnership between Barclays and Unreasonable Group to launch the world’s first international network of accelerators focused on scaling up entrepreneurial solutions that will help employ thousands worldwide while solving some of our most pressing societal challenges.

From November 26 through December 8, 2017, these entrepreneurs on a mission to generate thousands of future jobs in the emerging green economy will learn how to scale their companies at the second annual Unreasonable Impact UK program.

Kelda Technology has shown impressive growth since commercial launch in 2016 and already has installations with some of the largest gym and leisure chains in the UK, taking advantage of Kelda’s cutting edge shower system that reduces water usage by 50% without any loss in performance.

During the two-week intensive programme, Kelda Technology will receive mentorship and advice from business experts and serial entrepreneurs, such as Tom Chi, former head of experience at Google X; Kamran Elahian, venture capitalist and co-founder of two billion-dollar companies; Roz Savage, the first woman to row solo across three oceans; Jon Whitehouse, Managing Director, Group Head of Government Relations at Barclays; and Paul Lockstone, Managing Director, Corporate Communications at Barclays – among many others.

The program will take place at a private venue outside of London and include two exhibition events in the city, where Kelda Technology will showcase their innovation.

Daniel Epstein, founder and CEO of Unreasonable Group, explains, “By partnering with Barclays, we are working to scale up solutions that address significant societal and environmental issues. Unlike most accelerators, we align with entrepreneurs whose ventures have already proven effective in market. By supporting technologies that work, we can help these companies grow faster, in turn accelerating the creation of millions of new jobs around the world.”

After one full year of programmes in the US, UK and Asia Pacific, Unreasonable Impact’s collective 35 ventures operate in over 170 countries, reach over 150 million customers, and already support approximately 10,000 jobs. To date, the companies have also raised and generated nearly $1 billion USD.

The second year of the partnership commenced in October 2017 with 11 impressive companies in the US. Now, the movement continues in the UK with 11 more ventures. [Company] will join this notable global network in its shared effort to create thousands of jobs on the frontier of the green economy.

For more information, visit

About Barclays

Barclays is a transatlantic consumer, corporate and investment bank offering products and services across personal, corporate and investment banking, credit cards and wealth management, with a strong presence in our two home markets of the UK and the US. With over 325 years of history and expertise in banking, Barclays operates in over 40 countries and employs approximately 85,000 people. Barclays moves, lends, invests and protects money for customers and clients worldwide.

About Unreasonable Group

Unreasonable’s mission is to drive resources to and break down barriers for entrepreneurs solving key global challenges (i.e. ensuring renewable energy reaches the 1.3 billion people currently without electricity, reimagining the future of healthcare, or addressing the global unemployment crisis). Through running worldwide accelerator programmes, a globally oriented private equity fund, an extensive network of over 300 serial business leaders as mentors, and advanced storytelling and media activities, Unreasonable is designed to exclusively support entrepreneurs positioned to solve society’s toughest problems. For more information about Unreasonable, please visit

About Unreasonable Impact, created with Barclays

Unreasonable Impact is an innovative new partnership between Barclays and Unreasonable Group. The global partnership helps scale high-growth ventures addressing key global challenges with the aim of creating the jobs of tomorrow. Over the course of three years, Unreasonable Impact will work with over 100 of the world’s leading entrepreneurs from the UK, US and Asia Pacific by supporting them with the resources, mentorship, and the global network needed to rapidly scale their companies and in turn create new employment opportunities across targeted geographies. Each accelerator programme is an intensive two-week gathering designed to support growth-stage ventures with bespoke advice and guidance from a global community of mentors and industry specialists

For more information, please contact Adrian Mosley at Kelda Technology





Kelda Technology, the British cleantech who have developed the world’s most efficient shower system today announced that it has closed a £1.5 million investment in partnership with 24Haymarket to enable the company to continue its rapid UK and international growth.

Kelda Technology has adapted cutting edge automotive and aerospace technology to produce a revolutionary “water-in-air” shower system that halves water use without any loss in performance.  Water is broken into droplets to form a comfortable spray which is accelerated using a globally patented jet-type nozzle. Not only does it halve water costs, but also halves associated heating costs.

The Kelda shower system holds appeal for a wide range of sectors, including gym and leisure, hotels and accommodation providers, healthcare and maritime – all industries where water efficiency is key. The product has completed in-market validation and commercial trials, is in manufacture and the company has already signed installation deals with some of the largest leisure operators in the UK and Latin America.

Kelda Technology was recently chosen as one of the top 30 cleantech companies in the world at the New Energy Start-Up awards 2016 and was this week shortlisted by the UK Business Angels Association for Best Investment in a Disruptive Tech Business.

24Haymarket is a leading private capital group comprised of experienced investors, entrepreneurs and operators focussed on investment opportunities of up to £5m in high-growth companies. Following the investment from 24Haymarket, Kelda Technology has announced that Charlie Green will join the board, representing 24Haymarket.

Commenting on the investment, Charlie Green at 24Haymarket said: “24Haymarket is delighted to be supporting Kelda with a £1.5m equity investment to help scale the business now that it has proven its technology. We believe that the compelling environmental and economic benefits of Kelda’s innovative, patented shower systems make this a global product wherever water and energy resources are valued. We are also delighted that we have already been able to leverage 24Haymarket’s network to provide sales leads, potential resources and learnings from other portfolio companies to assist the management team in executing and realising its business plan.

“Water scarcity is an issue facing every continent and nearly 3 billion people and we’re at the forefront of reducing water wastage through the application of innovative technology. Even in areas not directly suffering water crisis, a combination of rising water costs and an increasing acknowledgement by businesses of the need to protect natural resources has seen strong demand for our systems.” said Chris Jackson, Chief Executive of Kelda Technology.

Adrian Mosley, Commercial Director goes on to say, “The investment and just as importantly, the support of 24Haymarket and Charlie Green joining the board, will allow us to continue to build a scalable cleantech business in Southampton, with the ability to manufacture, sell and support globally.”

Further information


For media enquiries or any questions about the investment, please contact:


Paul Tselentis


+44 (0)7760 810092


Notes to Editors

About Kelda Technology

Kelda Technology is the pioneer of water-in-air shower products that halve water usage and water heating costs through patented shower technology.  Our vision is to create shower products that make water usage better for everyone, everywhere – for businesses with high-volume water requirements, for consumers demanding an improved eco shower experience and for those around the world in water-scare and water-stressed regions where every drop counts.

About 24Haymarket

24Haymarket is a premium deal-by-deal investment platform focused on high-growth businesses, investing up to £5 million in any particular company. 24Haymarket’s Investor Network includes several highly-experienced private equity and venture capital investors, seasoned entrepreneurs and senior operators. We invest our own capital in direct alignment with entrepreneurs and typically seek board representation to actively support their growth agenda. Since inception in 2011, 24Haymarket has invested in more than 50 high-growth businesses.




Kelda Technology – Flying the UK Clean Tech Flag

Kelda Technology, the global innovators in water efficient showers are all set for a busy June as they fly the flag for British clean tech in Astana and San Francisco.

In Astana, Kazakhstan the company will be taking part in the Global Expo 2017, themed ‘Future Energy and Kelda Technology will be showcasing their range of commercial shower products at Global Expo 2017.


The first World Fair was held in 1851 in Hyde Park in London on the initiative of Henry Cole, a statesman, entrepreneur and designer, and Prince Albert. The Fair’s motto was a slogan “Let all nations work on the great deal – betterment of society”.


Astana EXPO-2017 has an environmental focus, bringing together the best green developments to showcase future energy concepts and also the best ways to bring such technology to those in most need. Representatives from Kelda Technology will be at Expo 2017 between 18th and 21st June.

The week before the Expo, Chris Jackson the CEO at Kelda Technology will be taking part in the Clean and Cool mission to San Francisco.


Clean and Cool brings together some of the most exciting businesses in fields such as energy supply and systems, urban living and smart infrastructure, automotive and smart mobility, agricultural and food, robotics, advanced materials and manufacturing.


At the heart of the week in California is a programme designed to help CEOs explore cross border opportunities, find faster routes to market and ways to overcome some of the challenges facing businesses in the clean energy sector.




aerating shower head

Aerating Showers – Busting the Myths

Our blog post last month referred to an independent study that demonstrates the Kelda Technology Shower System is 20x safer than an aerating shower in guarding against harmful legionella when comparing the generation of aerosols which carry the legionella bacterium.


Not only are aerating showers a potential health hazard for commercial shower operators, there’s also a whiff of snake oil about them. Here’s our top reasons why when it comes to saving water and ensuring a decent shower experience, aerating showers just don’t cut the mustard:


1. Aerating showers are only suitable for high-flow mixer installations, applying to roughly 10% of UK housing stock which have above 8 litres per minute flow rate. Aerating showers do not work with electric showers or low flow mixers.


2. All known aerating showers simply restrict flow using flow restrictors to attempt to save water and energy.


3. Aerating showers restricts flow and aerate water to change spray ‘feel’.  Independent analysis has shown there is no measurable boost in performance.


4. Unlike the Kelda Technology Shower System, air is sucked in to aerate water.  Water pressure/flow is used to suck atmospheric air into flow through small venturi.  This disrupts the spray pattern as air escapes from spray plate but does not increase spray force.


5.  The Kelda Technology Shower System has an infinitely variable air boost control and water flow courtesy of the digital control module that drives our air module. Aerating showers have no control.


Kelda Technology Receives Outstanding Safety Results Following Study Relating to Legionella

A new independent study proves Kelda Technology’s innovative water and energy-saving eco power shower is significantly safer than competing eco showers in limiting the risk of Legionnaires’ disease.

Dr John Shrimpton of the University of Southampton has carried out an independent study that demonstrates the Kelda Technology Shower System is 20x safer than an aerating shower in guarding against harmful legionella when comparing the generation of aerosols which carry the legionella bacterium.

Legionnaires’ disease, is a potentially fatal type of pneumonia that can be contracted by inhaling legionella bacteria in tiny droplets or aerosols smaller than 10 microns during showering.

Dr Makin, co-author of the UK’s Legionella guidelines stated showers which have the ability to significantly reduce the number of aerosols they release offer an increased level of safety in relation to transmission of waterborne infections such as Legionnaires’ disease and should be of interest to leisure centres, hotels, cruise ships and the healthcare sector.”
Using a laser diffraction technique, scientists at the University of Southampton measured water droplet sizes from different shower heads and concluded the Kelda shower produced remarkably fewer inhalable particles of the size necessary to contract the disease.

Dr Shrimpton said “This is a really interesting finding that the Kelda shower spray form produces much fewer aerosols of a respirable size and so is safer in guarding against Legionella when showering”.

In response to the study, Chris Jackson CEO of Kelda Technology stated “It is great to be able develop the Kelda shower technology with our local university in Southampton. These results serve to further endorse just how innovative and revolutionary the technology in our shower is”.

SETsquared announced its exclusive list of top 50 entrepreneurs at a reception at the House of Commons on Wednesday (29 March).


The top 50 entrepreneurs to be honoured have all reached milestone achievements, such as successfully raising a significant amount of investment, exporting products globally, had considerable societal impact, or achieved a world first.


SETsquared, which is celebrating its 15th year in 2017, is the enterprise partnership of the universities of Bath, Bristol, Exeter, Surrey and Southampton, and the global number one university business incubator. It has supported over 1,000 high-tech, high-growth companies who have had significant economic impact, collectively raising over £1bn of investment and creating over 9,000 jobs.


The announcement of SETsquared’s top 50 entrepreneurs will take place on the historic day that Prime Minister Theresa May is to trigger Article 50, and serves as a strong reminder of strength of UK technology innovation and entrepreneurship in the global market.


Being identified as one of the top 50 entrepreneurs from a talent pool of over 1,000 is a real accolade and testament to their hard work, dedication and entrepreneurship.


To draw up the list, SETsquared was assisted by an expert panel of investors and innovation corporate leaders. Entrepreneurs on the list are running companies that range across industries such as health, green technology and 5G and wireless communication.


Michael Queen, an investor on the panel, commented: “Creating a successful business requires talented entrepreneurs and a great idea but this isn’t enough. SETsquared acts as a catalyst providing support, logistics, training and mentoring to turn dreams into reality. Over the last 15 years, SETsquared has made a major contribution to building a dynamic technology based business sector in the UK.”


The reception at the House of Commons will provide an opportunity for the entrepreneurs to celebrate their achievements along with MPs and special guests, as well as sharing stories on their personal entrepreneurial journey.


See the full list of the top 50 entrepreneurs and the ones to watch:

Coop Energy, innovation and progress in the energy business has hailed Kelda Technology as a ‘Greentech Hero’ in an interview with Adrian Mosley.

Coop Energy is committed to sustainability and has ambitions to obtain 75% of their energy from renewable sources within the next three years. As a step towards this, they’ve already ceased energy that is generated from coal fired power stations. We’re delighted to have been recognised by such a forward thinking organisation with whom we share a common commitment to sustainability.

Kelda Technology was featured alongside other progressive greentech companies including Olio, Vantage Power, Macrebur, open energi and pod point.

See the full coverage of Kelda Technology here.


Chris Jackson Kelda Technology

Kelda Technology article in the Daily Express by the paper’s City and Business Editor Maisha Frost.

The coverage, led to a huge boost in enquiries to Kelda, from all over the UK – from businesses looking to save water and consumers eager to see the domestic shower launched and available for home users.

The Kelda Technology Shower Systems are available for commercial users for immediate delivery and have already been chosen by some of the leading gym and leisure chains in the UK and Latin America.

See the full coverage in the Daily Express here.