Energiesprong explained

Energiesprong is a revolutionary, multiple award winning, whole house refurbishment and new build standard and funding approach. Energiesprong works with independent market development teams. These teams intervene in the market by creating mass demand for these high performance, desirable and affordable retrofits. This is all to drive an industry that creates better, cheaper and more desirable retrofit solutions overall, to ensure everyone can live in a home that not only fits our time, but is also ready for our future.

The idea of Energiesprong originated in the Netherlands, where it began as a government-funded innovation programme to drive an improved energy efficient standard in the Dutch market. Today in the Netherlands, over 5000 homes have been retrofitted to desirable, net zero energy houses at no extra costs for the residents. The mission of the Energiesprong Foundation is to scale this approach to more markets, to create an industry which is able to design, produce and deliver whole house retrofits with excellence across millions of houses. Currently, Energiesprong teams are active in the Netherlands, France, the UK, Germany and Northern Italy. In New York State (RetrofitNY) and California, initiatives inspired by Energiesprong are working on a solution for the United States.

What is an Energiesprong retrofit?

After an Energiesprong retrofit, a home is net zero energy, meaning it generates the total amount of energy required for its heating, hot water and electrical appliances.  It also provides superior indoor comfort. This can be achieved by using new technologies such as prefabricated facades, insulated rooftops with solar panels, smart heating, and ventilation and cooling installations. A refurbishment comes with a long-year performance warranty on both the indoor climate and the energy performance for up to 40 years. A complete home makeover can be completed in less than 10 days, and some have been done in as little as a day!

How to pay for it?

In general, an Energiesprong renovation or new build is financed by future energy cost savings plus the budget for planned maintenance and repairs over the coming 30 years. This allows residents to keep the same cost of living.  In the case of housing associations, tenants pay the housing association an energy service plan which is the equivalent of their previous energy supplier bill. The housing association can use this new income stream to partly fund the renovation works. Typically, legislation needs to be amended to allow such a conversion of the monthly energy bill into a monthly energy service fee for the housing association.

How do we work?

Independent Energiesprong market development teams work with regulators to tune policy and regulation, and with banks to create financial arrangements to make a viable path to scale. By creating these market contexts while simultaneously brokering initial pilot projects and, subsequently, large volume retrofit deals (1000’s),  the momentum needed for stakeholders to act simultaneously is created. This entices suppliers to invest in off-site manufacturing of the components needed for such house makeovers. Mass customisation and industrialisation are key in getting to a new quality and cost standard.


Energiesprong attracts funding through several European projects supporting this international expansion: Transition Zero (H2020), E=0 (InterregNWE) and Mustbe0 (InterregNWE). Furthermore, teams in countries have acquired funding from national funds. Read more about these three projects.

Finally, we are also very grateful that some philanthropic funders contribute to our cause and enable us to undertake the more speculative stages of development which often come prior to public funds are made available. A list of the international funders for the various initiatives are at the bottom of this webpage.

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