Passive House and Almost Zero Consumption Building, how are they different?

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The terms Almost Zero Consumption Building (EECN) and passive house or PassivHaus are often mixed and can create confusion and ambiguity. We give you some keys so that you know how to differentiate them . Table of Contents PassivHaus, a classic concept Almost Zero Consumption Buildings, a European initiative The modification of the CTE, the Spanish tool for the EECN Similar but not completely interchangeable lenses Next Generation European Aid in Controlled Mechanical Ventilation for your project PassivHaus, a classic concept The PassivHaus or passive house standard or certification was born in Germany in the eighties, with the aim of reducing the amount of energy consumed by a building through an adapted design. A passive house attempts to reduce overall energy use as much as possible , including heating and cooling.

Improvements of up to % are proposed on the current housing stock. The passive house proposes to drastically reduce energy consumption through the orientation and compaction of the building in the project phase, in addition to the study of the program to determine the use of the spaces. The objective is to be able to place these spaces in a way that makes better use of the surrounding conditions, including the provision for the use of natural light in the majority of spaces. These conditions not onl Kiribati Email List make the building more efficient and sustainable but are also preferable for the comfort of the occupants . The passive house must be watertight and minimize thermal bridges in its construction, controlling the construction details and the implementation of the components, which must have a high degree of insulation. Almost Zero Consumption Buildings, a European initiative The EECN (nZEB in its acronym in English) are a consequence of the European Union's intention to improve energy efficienc.



The EU, in line with the need to reduce its energy consumption by % by , and the binding national CO reduction plans, focuses its sights on buildings, which account for % of the total consumption of the European Community. Almost Zero Consumption Buildings have the concept of very efficient energy behavior, where the energy required should be from renewable sources , especially those produced on site or nearby . All newly constructed buildings must be EECN as of December , , while public buildings must be EECN as of December , To this end, Directive //EU of the European Union obliges member states to improve their building stock in accordance with the EECN criteria. The directive is voluntarily ambiguous, and leaves the legislative development to each of the states to favor adaptation to geographical and cultural singularities. This Directive was replaced by EU Directive which specifies some points, among which the review and control mechanisms of the regulations stand out. The modification of the CTE, the Spanish tool for the EECN Almost coinciding in time with the review of the European directive, in July the Spanish version of the legislation was approved, in the.