E=0: Desirable, warm, affordable homes for life

Project Summary

E=0 will support the development of home makeovers to net zero energy levels in FR, NL, UK and LUX.

E=0 will address poor energy performance of residential buildings by generating a new mass market for net zero energy retrofits across NWE. Current retrofit measures are piecemeal & not integrated to deliver whole-house warrantied performance. This trend is driven by the lack of holistic policies & compartmentalised funding.

E=0 is based on the successful Energiesprong programme in the Netherlands, delivering net zero energy (E=0) retrofits with a 30+ years performance warranty; installed within one week at a cost paid off by the guaranteed energy savings and maintenance costs (stroomversnelling.nl/initiatief/internationaal).

A net zero energy house generates as much energy as is needed for the house and household appliances. This is possible by using new technologies such as prefabricated facades, insulated rooftops with solar panels and smart heating and cooling installations. After a Net Zero Energy makeover, the house takes on a modern appearance from the outside, while inside the house is free of moisture or drafts. The retrofit greatly improves quality & comfort, leading to wider urban renewal.

This game changing approach is based on aggregating demand from the housing supply side and letting them procure a performance-based product meeting this new standard. This challenges industry and their supply chain to innovate. To widen the opportunity for supply chain integration, this E=0 retrofit market must scale up to the NWE region.

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International Energiesprong partner meeting E=0 and Transition Zero in Berlin

29-05-2018 - 30-05-2018, Berlin, Germany

On 29th and 30th May partners participating in European Energiesprong projects Interreg NWE E=0 and H2020 Transition Zero will gather in Berlin to bring net zero energy a step clos... Read more

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Involving tenants in the E=0 project in Luxembourg

Posted on 02-04-2018

On January 25th, the Fonds du Logement organized a meeting with the Kiem building tenants. Along with the Fonds du Logement (FdL), Coeba Architects presented the project in detail.... Read more

Breakthrough in financing net zero energy for apartment owners in the Netherlands

Posted on 05-04-2018

Good news from the Netherlands regarding the Interreg E=0 project where the MRDH (Metropolitan Region Rotterdam - The Hague) is working together with homeowner associations to forg... Read more

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Project Partners

Lead partner

Organisation Address Email Website
Stroomversnelling 43 Anna van Buerenplein
The Hague
rverck@stroomversnelling.nl http://www.stroomversnelling.nl/
Name Contact Name Email Country
NEOBUILD S.A. Nicolas Zita n.zita@neobuild.lu Luxembourg
The National Energy Foundation Sandra Hayes sandra.hayes@nef.org.uk United Kingdom
Fonds du Logement Denis Ory Denis.Ory@fondsdulogement.lu Luxembourg
Moat Homes Limited Jason Amos Jason.Amos@moat.co.uk United Kingdom
Clarion Housing Group Jack White Jack.White@clarionhg.com United Kingdom
Greenflex Sébastien Delpont sdelpont@greenflex.com France
Vilogia Agnieszka Bogucka Agnieszka.Bogucka@vilogia.fr France
Metropoolregio Rotterdam Den Haag / Metropolitan Region Rotterdam The Hague Anne Sanders a.sanders@mrdh.nl Netherlands
ICF Habitat Rémy Butaye remy.butaye@icfhabitat.fr France


Site visits to Moat’s Maldon pilot bring Energiesprong retrofit works up close

Posted on

Site visits to the E=0 pilot in Maldon, Essex, are allowing potential stakeholders to get a touch and feel experience of an Energiesprong retrofit whilst works are still in progress. On 7 March some 40 international Energiesprong participants visited the pilot where five Moat Homes Limited (“Moat”) properties are being retrofitted to the Energiesprong standard by ENGIE. Over 20 UK stakeholders also joined a site visit on 23 May to find out more. Read More

Energiesprong kicks off Interreg NWE´s Mustbe0 project to make net zero energy suitable for multi-storey buildings in North West Europe

Posted on

After a successful start bringing the Dutch Energiesprong approach for affordable, desirable, long-term performance guaranteed net zero energy (NZE) retrofits to Europe for single family homes (E=0), the coming three years will see Energiesprong develop a market for apartment buildings in North West Europe under a new project: Mustbe0, funded by Interreg NWE. The UK, France, Germany and the Netherlands will join forces to create a viable path to scale. Read More


E=0 closing event at Futurebuild London 7 March

, London

You are invited to join our E=0 closing event funded by INTERREG NWE on 7 March 11.00-12.30 in the central networking area (C140) in the Knowledge Forum area of the conference hall. A special 1.5 hour programme features short presentations by international experts from housing organisations and solution providers sharing their own unique perspectives on delivering an Energiesprong retrofit project. This is an opportunity to learn about Energiesprong pilots in France and the UK supported by funding from INTERREG NWE’s E=0.
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E=0 Partner Event in Nottingham: Energiesprong into Action!

, Nottingham

Some 50 international partners of Energiesprong gathered in Nottingham, UK during 24 and 25 October 2017 to share good practice and discuss the development of the Energiesprong concept. Energiesprong Market Development Teams from the UK, Netherlands, France and Germany were joined by suppliers and housing associations to showcase the Energiesprong approach to housing retrofit and new build. Day 1 was dedicated to the H2020 financed project TransitionZero, Day 2 focused on the Interreg NWE project E=0.
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Show me the money!

, London

A workshop was held on 16 March 2017 with the twin aims of helping housing providers learn more about financing options for low energy retrofit and new build, and of enabling E=0 project participants and Energiesprong members to consider their requirements and conditions for financing projects.
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Site visit Arnhem: French solution providers visit Energiesprong Netherlands to prepare for the demonstration phase

, Arnhem

E=0 partner GreenFlex, coordinator of the EnergieSprong France project, organised on 3 October a workshop in the Netherlands to give professionals of the sector the opportunity to meet and exchange. The two-part workshop included a visit of renovated homes and homes under renovation in Arhem and a feedback session with a former BAM project manager, involved with EnergieSprong since the beginning. The goal of the feedback session was to discuss the concept behind EnergieSprong, the implications of the project for different type of solution providers, the importance of tenant engagement and the performance warranty specific to EnergieSprong. Participants left with a concrete vision of the expected outcome and an answer to many of their questions.
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Discover the E=0 pilots in France

The EnergieSprong approach was launched in France in March 2016, by GreenFlex, a firm specialised in helping organisations accelerate their social and environmental transition. GreenFlex has set up a market development team of 7 people to adapt and implement the EnergieSprong approach in France, and works with local stakeholders to do so.

Within the E=0 project, they are working side by side with the housing associations ICF Habitat and Vilogia, who are experimenting the first EnergieSprong refurbishments in France.  Vilogia is renovating 10 houses with a consortium led by Rabot Dutilleul Construction, and ICF Habitat is renovating 12 houses with a consortium led by Bouygues. Both projects will be finished by the summer 2018 and will provide precious feedback for the further deployment of EnergieSprong in France.  

Those first demonstrators have inspired others: Many housing associations, solution providers and facilitators have shown interest in the project and become regular attendees of workshops and members of the steering committee. 36 of them, among which 9 housing associations, have signed a charter engaging them to contribute to the EnergieSprong dynamics in France, and two new projects have already been launched (by Neotoa and Est Metropole Habitat).


Link to Map

E=0 project in Hem (France)

Location of the investment: Hem (France), rue Védrines 38-56 >>> map

Project manager: Vilogia, a social housing association: http://www.vilogia.fr/

Consortium: Rabot Dutilleul Construction, Pouchain, Symoé, Smart Module Concept, Redcat Architecture, Nortec

Planning: The works started in January 2018 and ended mid-June 2018.

The project: 10 houses have been renovated to reach an energy E=0 level with a performance guarantee of 25 years. They are typical northern brick houses with two floors and four rooms built in 1952, with an initial energy performance of E. The refurbishment included the insulation of the houses through new prefabricated facades and roofs. A heat pump is now providing hot water efficiently, and solar panels have been installed to provide energy. An energy module has been integrated in the façade and gathers heat, hot water, ventilation and cooling systems to make the maintenance easier. Tenants can also enjoy new refurbished kitchen and bathroom, and will soon have access to a monitoring device to follow their energy consumption. In the following months, they will benefit from coaching to help them understand and master their energy consumption.

To read more about Vilogia's experience, look at our news article, at the press communique, and at Vilogia's blog

See the launch of the first 10 net zero energy houses in France in the video below. A full version can be found by clicking this link.

Aerial view

The City of Hem is situated next to Lille Metropole in the North of France. It covers an area of 9.65 km, it’s population is 19.675. It’s mostly residential.

Description of the site

The pilot site in the rue Vedrines is composed of 10 houses which are rented to Vilogia clients only. The pilot is composed of 2 groups of 4 houses and 1 group of 2 houses.

The houses have ground floor and first floor configuration and their facades are made of bricks. They have pitched roofs. They were constructed in 1952 and their current energy label is E. 

Site before the refurbishment

Site during refurbishment

Site after refurbishment

"We want to show that what is done in the Netherlands is possible here too, in our French context."

Agnieszka Bogucka, Project Manager Vilogia

E=0 pilot in Longeuau

Location of the investment: Longueau, 175-197 rue du Maréchal Joffre  >> map

Project Manager: ICF Habitat, a social housing association: http://www.icfhabitat.fr/

Consortium: Bouygues Construction, Pouget, Dalkia, Alterea, Studio d’Architecture Ranson/Bernier

Planning: The works started in January 2018 and will end in July 2018   

The project: 12 houses are being renovated to reach an energy E=0 level with a performance guarantee of 30 years. They are semi-detached and detached houses with two floors and five rooms built in 1960, with an initial energy performance of F. The refurbishment includes the insulation of the houses through new prefabricated facades and roofs. A heat pump coupled with a controlled mechanical ventilation (single flow system) will be installed, and solar panels on the roof will provide energy. Low energy light sources will replace the current ones. External energy modules will gather the energy devices for a simpler maintenance. Tenants will also enjoy new refurbished bathrooms, and will have access to a monitoring device to follow their energy consumption. 

Read the news article and digital magazine about the launch of the project.

Aerial view

The City of Longueau is situated next to Amiens in the Somme department (Hauts-de-France) in Northern France. The town was once a railway centre. The area (3,4 km2) is mostly residential. In 2013, its population amounted to 5 641 inhabitants.

Site description

The demonstration stock (61 units in total) is located in a residential area, which mostly consists of semi-detached and detached houses, near a railway station and the City of Amiens (only 15 minutes walk from the city centre and 5 minutes by train).

The houses were built in the 1960s, with 3 to 5 rooms and one floor, front yards with grass and backyard sheds. They are mainly occupied by elderly people (29% of tenants are aged 40-59, 19% are over 60 years old).

The Energy Performance Certificate indicates a rating of “F”.

Site before the refurbishment

Discover E=0 in the UK 

Energiesprong UK (hosted by NEF) is leading on the effort to bring the Energiesprong concept to the UK. The E=0 project is supporting UK housing associations who are pioneering Energiesprong retrofits by working on demonstrators for the net zero energy renovations.

Energiesprong UK has 14 founding partners: frontrunners in the field of sustainability and innovation from the social housing sector as well as construction companies that share the vision of working together to provide desirable warm affordable homes for life. In addition, it has a range of supporting partners that are collaborating in the transformation Energiesprong UK is working to achieve. 

Two E=0 pilots are underway in the UK. In Maldon, Essex, fives homes are being retrofitted by solution provider ENGIE on behalf of housing association Moat Homes. In Nottingham, 17 homes are being retrofitted by solution provider Melius Homes on behalf of owner Nottingham City Homes. Both projects are due to complete around summer 2019.


Link to Map


E=0 demonstrator in Maldon (UK) 

Moat is a leading housing association working in the South East of England, providing high quality homes and services.

Moat shortlisted 10 homes in Maldon that would benefit from the energy efficiency works that Energiesprong can offer. Works proceeded on 5 of these. Moat are excited to be part of the groundbreaking project and recognise the long term advantages that Energiesprong could bring to some of their customers.

Moat procured ENGIE as their solution provider. Works are underway and are expected to be completed for Summer 2019

Read more about Moat's demonstrator here.

Aerial view

The demonstrators are situated along one stretch of road in the Maldon.

The demonstrators are in an exposed location with fields on one side and a river on the other.

Site description

All properties were already built in 1931. They are of semi-detached construction with rooms in the roof.

They all have 2 bedrooms and pitched roofs, with 1 to 4 occupants per property.  Floor surface varies between 61m2  and 71m2

Current energy performance certificates (EPC): 

  • 185 Mundon Road has a SAP rating of D 64
  • 187 Mundon Road has a SAP rating of E 47
  • 235 Mundon Road has a SAP rating of E 48
  • 247 Mundon Road has a SAP rating of E 46
  • 253 Mundon Road has a SAP rating of E 46
Houses before the E=0 refurbishment



“We’re really looking forward to enhancing the appearance and comfort of our homes as we want our customers to love where they live – and it is equally important that our homes are affordable to run. However as a social landlord we also have a commitment to consider the health and wellbeing of our customers. Retrofitting our homes with energy efficient technologies has clear health benefits to those who live in them, supporting our shared aim with Energiesprong of delivering desirable, warm and affordable homes for life.”

Ben James, Energy & Sustainability Coordinator at Moat

E=0 demonstrator in Nottingham (UK)

The new Nottingham Energiesprong pilot will radically improve 17 homes, comprising of 10 bungalows and 7 two-bedroom, three-storey houses. The properties, owned by Nottingham City Homes, are on West Walk, adjacent to the first multi award-winning pilot.

Work began on site in December 2018 to rollout the piloted solution. Plans for the rollout include clusters of homes with communal energy centres with ground source heat pumps fed by electricity generated from solar panels on the roofs. Battery and thermal storage will help make the most of solar energy captured onsite.

Read more about the Nottingham demonstrator. 

Aerial view

The properties, owned by Nottingham City Homes, are on West Walk, adjacent to the UK's first 10-home Energiesprong pilot which launched in December 2017.


Site description

17 homes, comprising of 10 bungalows and 7 two-bedroom, three-storey houses form part of this pilot.

All the properties were built in 1969 and are located on West Walk, Sneinton, Nottingham.

There are two types, one bedroom bungalows and two bedroom terraced houses. The bungalows are designed for two occupants and the houses for four occupants.

Floor surfaces of the bungalows are 44sqm. The houses are 110sqm, including the integral garage.



Energy performance certificates (EPC) before retrofit rated the properties as a C or D.

01 West Walk D 64
02 West Walk D 60
03 West Walk C 70
04 West Walk C 73
05 West Walk C 69
06 West Walk C 71
08 West Walk C 70
12 West Walk C 73
14 West Walk C 73
18 West Walk D 58
13 West Walk D 65
15 West Walk D 67
17 West Walk C 70
19 West Walk C 71
21 West Walk C 70
23 West Walk C 70
25 West Walk C 70

Photo courtesy of Melius Homes.

Homes before the E=0 refurbishment

One of the bungalows before refurbishment.

Photo courtesy of Melius Homes.

“Nottingham City Homes is leading the way in the UK in adopting this transformational approach to whole house retrofit and we’re delighted to be delivering this ground-breaking project.”

Rob Lambe, Managing Director, Melius Homes

Discover E=0 in Luxembourg

In Luxembourg, Neobuild is working with the Fonds du Logement, the biggest housing association in the country, to refurbish an apartment building of 24 units using the Energiesprong method. If the project goes according to plan, the Fonds du Logement and other housing associations could be interested in applying the Energiesprong method elsewhere in Luxembourg. Local construction companies and suppliers are following closely the advancement of the pilot.

See also the article published at infogreen.lu: https://www.infogreen.lu/E-0-un-jour-pour-un-batiment-zero-energie.html 


Link to Map

E=0 demonstrator Fonds du Logement: Place Abbé Mühlendorf

The Fonds du Logement has selected an apartment building for the E=0 retrofit. It's located in the City of Luxembourg.

Works are planned to start there in 2018. 

Aerial view

The Kirchberg-KIEM district is situated in Luxembourg City in the south of the Grand Duchy of Luxembourg. It is today the heart of the international banking and financial place that the country constitutes. Its population is 5.499.

Site description

The site is situated in a residential area of semi-detached and individual houses next to the highway exit and large communication axis leading to neighbouring cities.

The buildings have a ground floor and 3 floors and pitched roofs. These are typical residences of the eighties with apartments including balconies. Each landing serves 2-3 apartments. Each stairwell provides an access to 4 levels of apartments and a basement. The first building of 24 units and 2 staircases will be refurbished with E = 0 techniques and delays and. The second building, planned for a classic renovation, has 3 staircases and 28 units.
The current energy class of both buildings is “G”. and they were built in 1986 and 1987. The population consists of small families. Most people are long term tenants.

Site before the intervention

« Il s’agit d’un projet pilote, donc nous n’allons pas nous limiter à faire du conventionnel. C’est l’occasion pour nous d’explorer différentes pistes en tenant compte de toute une série de contraintes : la valeur d’isolation, la densité, le poids, la valeur écologique, etc. Nous tendons vers une structure en bois avec un isolant qui pourrait être en paille ou dans un autre matériau biosourcé. Nous cherchons la solution idéale pour ce bâtiment en particulier, tout en gardant en tête l’idée de pouvoir l’appliquer à d’autres résidences ».

Joëlle Tanson, architecte au Fonds du Logement (© infogreen.lu)

Discover E=0 in the Netherlands

In the Netherlands the E=0 project focuses on two things: a solid financial solution for homeowner associations wanting to achieve Net Zero Energy refurbishments and the set up of the incubator Factory Zero, that develops and produces smart Net Zero Energy (NZE) systems.

A driving focus of this project is for homeowner associations to find a solid financial construction for NZE refurbishments with a duration of 25 to 30 years. Under the E=0 project, we work together with large banks, financial organisations, local governments, provinces and national government to start pilots. By learning in practice, such pilots enable us to generate financial solutions that satisfy all parties involved. All experience and knowledge gained is then translated into tools and manuals for other homeowner associations. You can read more about these pilots in the article “Dutch local governments stimulate NZE for 15 homeowner associations”.

The other main focus of the NWE interreg project E=0 has been to create the start-up and incubator Factory Zero. Factory Zero works in close cooperation with innovative players in the building supply industry to develop, produce and deliver smart, complete Net Zero Energy systems. Industrial scale solutions, innovation and smart thinking are necessary to get the costs for Net Zero Energy refurbishments down whilst bringing the quality up. Factory Zero is the first start-up that has successfully built an installation module that is not only smaller, better and smarter, it’s also cheaper and it looks great.

The E=0 team constantly keeps its finger on the pulse of the European market, on the lookout for innovative suppliers capable of developing Net Zero Energy products.


Olivier Lauterslager, project leader homeowner associations olivier.lauterslager@platform31.nl

Sjoerd Klijn Velderman, project leader incubator and research of the European market sklijnvelderman@stroomversnelling.nl

Press releases and articles project launch

"€5.4m (£4.23m) to stimulate innovation in net-zero energy housing refurbishments" NEF, read article

"Dutch Energiesprong scheme arrives in UK" RIBA (Royal Institute of British Architects), read article

"£4.23m funding released for innovation in net-zero energy housing refurbishments" Westminster Sustainable Business Forum, read article

"5,4 M€ pour stimuler l’innovation dans les rénovations de logements zéro énergie" Vilogia, read article

"Affinity Sutton, Moat and NEF win retrofit funding as part of Interreg financed project" buildpositive.net, read article

"Le « saut énergétique » néerlandais rebondit en Europe" Le Moniteur, read article

"Housing associations receive EU funding to deliver net-zero homes" Building-Construction-Design, read article

"EnergieSprong débarque en région avec Vilogia" La Chronique du BTP, read article


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