Energiesprong

The Energiesprong model increases the energy efficiency of new and existing buildings through the application of five criteria:^[4]

1. Performance guarantees for thirty years
2. Implementation possible in less than one week
3. Affordability created through energy savings and reduced maintenance costs
4. Attractive design with upgraded features
5. Procuring is based on purchasing housing concepts instead of detailed specifications and drawings

Energiesprong retrofitting typically involves snapping a pre-fabricated shell of panels to the exterior of a building to improve its thermal efficiency. The panels are created by taking a laser scan of the building's exterior to create a building information model, which can then be used for computer-aided manufacturing. The work can therefore be mostly completed at the factory, with installation taking less than one week.^[5] In contrast to shallow retrofits such as the installation of heat pumps or basic insulation, energiesprong is considered a "deep" retrofit.^[6] The renovations should pay for themselves in thirty years.^[7]

More than 5,000 homes in the Netherlands have been retrofitted with Energiesprong.^[5] In 2018, the first ten homes were retrofitted in the UK as part of its Energiesprong pilot program.^[7] Energiesprong has also been applied to buildings in France and Canada, as well as the US states of California and New York.^[4]

In the United Kingdom, the home owner - after the refurbishment - pays a monthly fee, which is significantly less than the utility bills before the conversion - and a guaranteed free electricity and hot water.^[8]