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‘Virtu’ part of a suite of pioneering technologies at the Active Office at Specific

June 19th, 2018

Naked Energy is proud to be part of the Active Office, which will be the UK’s first energy positive office – designed to generate more solar energy than it needs over the annual cycle.




Located at Swansea University’s Bay Campus, the Active Office will be manufactured using cutting edge off-site manufacturing techniques and incorporate a range of innovative technologies to generate, store and release solar energy.


Virtu has been integrated in to the vertical South facing facade to optimise winter yield for space heating, whilst simultaneously producing electricity.  Virtu utilises vacuum technology to improve thermal performance throughout the yield and is especially effective in temperate climates like the UK.  This project represents the first public project for the company.


The building will be linked to, and able to share energy with, the Active Classroom. The UK’s first energy positive classroom was completed in autumn 2016 and has been operating for a year.


Together the solar-powered buildings provide functional teaching and office spaces, as well as building-scale development facilities for SPECIFIC Innovation & Knowledge Centre and its industry partners.



Key features of the Active Office

  1. The UK’s first energy positive office– with the energy profile of an occupied office
  2. A unique combination of technologies for the generation, storage and release of solar energy – both heat and electricity
  3. Repeatable design
  4. Connected– it will be connected to the Active Classroom, and able to share energy between the buildings and with electric vehicles – demonstrating how the design concept can support energy resilient communities


Here’s an excellent Blog link for the project


The project is lead by SPECIFIC Innovation & Knowledge Centre and has been funded by Swansea University, Innovate UK  & ERDF





Government’s clean energy drive invests £35 million in innovative projects

July 5th, 2017

Speaking at the Rushlight Summer Showcase, Minister of State for Business, Energy and Industrial Strategy Claire Perry announced funding for 2 innovative clean energy projects which will create local investment opportunities across the country.



Rushlight, a leading provider of clean technology events in the UK, hosts the Summer Showcase which is sponsored by BEIS and Innovate UK. At the event, Claire Perry announced that £35 million funding, from the BEIS Energy Innovation Programme, will go towards smart heating systems and innovation in using hydrogen as a potential heat source.



As a recipient of grant funding from BEIS, the Minister was introduced to Naked Energy at the event.  Company Directors, Christophe Williams and Nicholas Simmons were able to highlight the progress made with the BEIS support and also provide deeper understanding of the breakthrough design of Virtu.

Under the new investment, £10 million will sponsor the second phase of work by the Energy Systems Catapult on its Smart Systems and Heat Programme. The programme will help develop local energy plans alongside Local Authorities, and bring down the cost of energy bills, while supporting the development of the UK’s low carbon heating projects.

A further £25 million will be invested in potential uses of hydrogen gas for heating, testing the possibility of domestic gas pipes for hydrogen and developing a range of innovative hydrogen appliances such as boilers and cookers.

Minister of State for Business, Energy and Industrial Strategy Claire Perry said:

“The UK government is committed to leading the world in delivering clean energy technology and today’s investment shows that we are prepared to support innovation in this critical area.

Our aim is for the UK to be a global leader in innovation, science and research and our Industrial Strategy will help us to deliver our ambitious CO2 reduction targets while, creating jobs and opportunities for people across the country.”

This investment follows the government’s commitment to double energy innovation investments set out in the Industrial Strategy green paper, to £400 million per year by 2021.

“All things smart”

May 17th, 2017

Naked Energy have been selected and sponsored by the Cleantech Group to present today at their Helsinki Cleantech Forum.  The company is pitching to specialist cleantech investors for growth funding to support the commercialisation of Virtu.





“Much of today’s industrial landscape would look familiar to a 1967 industrial executive.


Equipment has modernized, designs and reliability have improved, but how we power, make, move and do things –on the physical face of it, at least – have not radically changed. Fossil fuels still form over 75% of the global energy mix, EVs represent less than 1% of new sales of passenger vehicles, and GE remains the general industrial behemoth of the world and only surviving company of the Dow Jones 30.


Yet, changes are clearly underway and momentum is increasing – with potential to dramatically accelerate in the 2020s – as we continue the transition from a 20th century global industrial order to a 21st century one.


The single biggest change our 1967 executive would be amazed by would surely be the power and ubiquity of information and communication technologies. Finland’s Nokia, albeit ultimately the victim of the power of creative destruction, was a key player in the rise of mobile telephony, within the wider rise of the Internet and all things “smart” from the 1990s onwards.


2017 is a special year for Finland, its 100th anniversary as an independent nation. In deference to the host of our 2017 Cleantech Forum Europe, this year’s theme is Early Signs of the Next 100 Years: Charting the great, smart industrial transition.


Through plenaries, parallel tracks, and our small and informal interactive side sessions, we will go in search of all things smart (assessing how we power, make and move things), and identify the building blocks and enablers of the next 100 years. While no serious attempt can be made to imagine the full 100 years ahead, we are all interested in how the first 1-2 decades may pan out on that transitional journey towards a total and quite radical shake-up of the 1967 industrial landscape.


P.S. Why 1967?  It was Finland’s 50th anniversary, but it was also the year that three independently-operating, albeit jointly-owned, companies came together to form Nokia Corporation to focus on four markets: paper, electronics, rubber, and cable.”

Virtu utilised for clean water production and indoor air control

May 16th, 2015

WE4CCII is a Climate-KIC innovation project led by TNO in cooperation with Laborelec (GDF Suez), Naked Energy Ltd. and TU-Berlin.



WE4CCII is a Climate-KIC innovation project led by TNO in cooperation with Laborelec (GDF Suez), Naked Energy Ltd. and TU-Berlin.

It aims at the technical demonstration, business case evaluation and implementation of new value chains for production of high quality water and indoor air (humidity) control using low grade thermal waste energy from cooling water – with new technologies such as membrane distillation and water recovery from desiccant solutions.

The aim is to connect stakeholders in low grade heat production (waste, solar) with water – air networks. Reuse of low grade heat or renewable heat for high quality water production and air conditioning can substantially reduce energy consumption and CO2 emissions.

Using unexploited waste heat from cooling water can reduce electricity consumption by up to 50 per cent relative to water production using fossil fuels.


A ground-breaking innovation

The WE4CC-II project has been testing the combination of technologies for using excess heat produced by industrial processes (e.g. electricity production) or specialized solar technologies such as Virtu technology developed by Naked Energy Ltd. – that won the Venture Competition in October 2011 – in order to purify or desalinate water with the Memstill technology developed by TNO.

The cascading heat from these processes is intended to be used for heating & cooling, by using the Absorberbox technology developed by TU Berlin.

The combination of Virtu and Memstill technologies has been evaluated in the lab, while a demonstrator of the Absorberbox is running in the Berlin Botanic Gardens.

A demonstrator of the Memstill technology is now successfully evaluated at the Electrabel/Laborelec power plant in Belgium, capturing waste heat from the electricity production process and purifying surface water from a river near the site, in order to make high pressure boiler feed water.


What is the innovation?

In the WE4CC-II project an advanced membrane distillation technology (Memstill) is evaluated for the production of demineralised water and drinking water using low grade heat. Membrane distillation is a thermally driven separating process where water vapour passes through a hydrophobic membrane and high quality liquid water is retained. This process is triggered by the difference in water vapour concentration across the membrane.

By using heat to drive the process (waste heat from power plants, renewable heat from solar PVT systems, etc.), electricity consumption for high quality water production is cut and no excess heat is wasted or discharged to the environment.

Two processes have been utilised to put membrane distillation into practice:

  • Memstill: partial use of waste heat
  • Memstill with additional heat envelop (MD-HEX): full use of waste heat

WE4CC-II uses these membrane distillation technologies with the aim to commercialise the potential for waste heat / renewable heat – water cascades.

For air de-humidification, a market for future users of liquid desiccants (heat recovery, supply air drying and precise humidity control in buildings, de- humidification of greenhouses, drying of industrial goods) has to be prepared by developing a number of pilot projects, showing the technology and its specific contribution for power saving. Furthermore, industrial waste heat suppliers will be needed for the regeneration part of the desiccants.

Desiccant networks can be envisaged as a new way of energy storage and transport under use of today unexploited waste heat sources, especially as applications of air de- humidification and regeneration services will regularly not be found on the same place.


Societal Impact

Waste heat is produced by a lot of processes that use energy. The biggest contributors to waste heat are industrial processes, domestic processes and energy production that occur in the urban environment. Often, this waste heat is lost to the ambient environment, contributing to a rise in global temperature. Storage and reuse of this waste heat contribute to improving energy efficiency and reduction of CO2 emissions in the city.

This project – including the following Climate-KIC partners Netherlands Organisation for Applied Scientific Research (TNO), TU-Berlin (Technical University), Laborelec/GDF Suez, Naked Energy – is part of the Sustainable City Systems Platform and is a follow-up of the Pathfinder WE4CC.


When will it be introduced?

In 2015, the project aims to run a demonstrator at the Hotel Dolmen in Malta, where renewable heat originating from solar PVT panels (Virtu) will be used to desalinate sea water; the potential to use cascading heat from this process to heat and cool the building through the Absorberbox will also be explored. This integrated solution once demonstrated will be introduced to the market, most probably in the course of 2016.

In this framework, the project shows synergies with the following Climate- KIC projects: Energy Atlas – that maps and balances the energy sinks and sources of the city of Berlin, and CMA Pilot Metropolitan Utilities Dialogue (Berlin) – a multi-utility platform.

The product Memstill/MD-HEX modules for waste heat utilisation and the related service on technical and economic feasibility evaluation of Memstill/ MD-HEX for new customers at commercial price is planned for the end of 2015.

The product Desiccant regeneration units for waste heat utilisation, and the related service on technical and economic feasibility evaluation of desiccant regeneration for new customers at commercial price is planned for the end of 2015.

A new spin-off from TU Berlin and TNO for waste heat – water – air networks based on result of the business plan is planned for 2016.



Norbert Kuipers, Robin van Leerdam, Jolanda van Medevoort, Willy van Tongeren, Bart Verhasselt, Lieve Verelst, Marnix Vermeersch & Dominique Corbisier (2014): Techno-economic assessment of boiler feed water production by membrane distillation with reuse of thermal waste energy from cooling water, Desalination and Water Treatment.

DOI: 10.1080/19443994.2014.946722, see:

More information:

Norbert Kuipers


Naked Energy winner of Energy Generation at The Cleantech Open California 2013

November 21st, 2013


The Cleantech Open (, the world’s largest clean-technology accelerator, has announced the winners of the Global Ideas Competition.




Orchestrated in conjunction with Global Entrepreneurship Week (, this annual competition sees startups from around the world competing in their respective countries for national awards, with the national winners then facing off at the Cleantech Open Global Forum.


After two days of intensive judging, a group of five national winners were selected to present to a final jury of investors and technology experts.


Naked Energy was the winner of the Energy Generation category and People’s Choice award.



DECC review April 2013 featuring Naked Energy

May 2nd, 2013

Virtu revealed at the launch of the BRE National Solar Centre

May 1st, 2013

The Rt Hon Greg Barker MP Minister for Climate Change opened the National Solar Centre in Cornwall last week where Virtu was revealed.

Greg Barker MP – Virtu® “Amazing innovation and the future of solar”

December 11th, 2012

Greg Barker MP, Energy and Climate Change visited Naked Energy as part of a tour of the Romag factory in County Durham.  We demonstrated our pilot product to be launched early 2013.  The minister immediately heralded the technology “Amazing innovation and the future of solar”.


Naked Energy to exhibit at Green Corporate Energy 2012

June 19th, 2012

Naked Energy is exhibiting at Green Corporate Energy 2012 on the 27th June at 200 Aldersgate, St Paul’s London.

Green Corporate Energy (GCE12) is in its second year. Building on the reputation established in 2011, the intention is to position GCE12 as THE annual gathering for those with energy strategy responsibility at big companies.

The objective
The 2012 event will showcase the latest evolutions in energy strategies and the trends that are driving them. This year the emphasis will be on the energy services market, positioning it as the market with the biggest growth potential.

Clean & Cool Mission

March 23rd, 2012

The Clean and Cool Mission is a competition-led trade mission to San Francisco for twenty of the UK’s best, high growth potential cleantech companies ready to do business in the US and overseas.


Come and join us there. Clean and Cool Mission 2012 will take place 24th- 31st March 2012



Clean and Cool Mission launch reception from Missions Control on Vimeo.