Buildings consume 40% of the world’s energy

Almost 40% of the total CO2 emissions in the world come from buildings. Many buildings have been built a long time ago when other or even no requirements for energy consumption were set. Now almost 97% of the buildings in the Netherlands will have to be renovated up to 2050 to meet the climate agreement requirements.

The fuzzy landscape of requirements and rules for energy calculations

The subject of energy has been the victim of legislative changes, changing regulations or misconceptions about energy-efficient measures for several years. What started as a regulation from the EPBD (Energy Performance of Buildings Directive) was the EPC (energy performance coefficient), but it continued as the EPA (energy performance advice) and now the BENG 1, 2, and 3 (Nearly Zero Energy Buildings). It uses the NTA8800 standard as a guideline, just like the BREEAM.

So indeed all in all very confusing and logical that things might go wrong…

Olysis calculates the real energy balance, but also tests against the standards

Ultimately, an energy calculation is a balance of physics in which the energy entering the building is compared with what goes out. The standards are there to “normalize” these and to draw an equal denominator across the country. Olysis therefore first calculates the “real” value of the energy consumption and generation in a building based on physics, and then compares how this translates to the right norm and regulation. In this way, you can both prove that the design meets the requirements but we also allow you to estimate the future energy bill.

Olysis calculates more than just energy

Olysis can do more than just energy calculations. Also think of daylight, shade, heat, wind, but also sound. Olysis quickly calculates a large number of design options within the components that fall within the package of urban analyses and building analyses for a fixed price per calculation session. Do you only want to calculate one component, such as energy? This is also possible as a single calculation.

Interested in a collaboration? Get in touch!

Calculate the energy balance of the design of your building in advance and avoid failure costs afterwards. With Olysis you make timely decisions about energy-saving measures. Are you interested in a collaboration? Get in touch with us! We are happy to discuss your wishes.

Projecten waar we trots op zijn

Bekijk hier onze projecten voor verschillende opdrachtgevers in verschillende branches. Neemt contact met ons op voor informatie over ons werk!


Project description Reduced the wind speeds around the boulevard and the alleyways between the buildings by determining the size and position of sculptures and art objects. Developer: FRED Developers Year: 2020 Location: The Hague Analyses: Wind Interested in a collaboration? Get in touch! Are you done with complex analyses and endless design iterations from engineers...
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Project description We performed a variant study to improve the indoor comfort of an existing office building, and to improve the energy efficiency of the building. Developer: Cairn Real Estate Year: 2020 Location: Venlo Analyses: Energy, daylight, thermal comfort Interested in a collaboration? Get in touch! Are you done with complex analyses and endless design...
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Project description Developer: White House Development Year: 2020 Location: Gouda Module(s): Urban Massing Analyses: Wind, shadow Interested in a collaboration? Get in touch! Are you done with complex analyses and endless design iterations from engineers about what can and cannot be done? And especially with the 10% failure costs that you always have to factor...
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