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--- certification:passive_house_categories [2016/03/02 10:59] – [PER factors] kdreimane
+++ certification:passive_house_categories [2024/04/18 20:12] (current) – jgrovesmith
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-====== The new Passive House Classes ======
+====== The Passive House Classes: Classic, Plus and Premium ======
-Renewable energy is the ideal complement to the efficiency of the Passive House Standard. In order to provide reliable guidance for this combination, the Passive House Institute has introduced new categories for its building certification; in addition to the established "Passive House Classic", there are - starting with the publication of PHPP 9 - the Passive House Plus and Passive House Premium classes as well. A new evaluation procedure, focusing on "Primary Energy Renewable" (PER), serves as a basis for this.
+Renewable energy is the ideal complement to the efficiency of the Passive House Standard. In order to provide reliable guidance for this combination, the Passive House Institute offers three tiers for its building certification: **Classic, Plus and Premium**. The classes Plus and Premium were first introduced with PHPP version 9 (2015) as addition to the well-established Passive House Classic.
-{{:picopen:20150311_passivehouseclasses_press_release_phi.jpg?500|}}
-The heating demand of a Passive House may not exceed 15 kWh/(m²a). This will continue to apply, but with the introduction of the new categories, the overall demand for renewable primary energy (PER) will be used instead of the primary energy demand, which was previously used. In the case of the **Passive House Classic** category, this value will be 60 kWh/(m²a) at the most. A building built to **Passive House Plus** is more efficient as it may not consume more than 45 kWh/(m²a) of renewable primary energy. It must also generate at least 60 kWh/(m²a) of energy in relation to the area covered by the building. In the case of **Passive House Premium**, the energy demand is limited to just 30 kWh/(m²a), with at least 120 kWh/(m²a) of energy being generated by the building.
+[{{:picopen:20150311_passivehouseclasses_press_release_phi.jpg?500|PER limits for the three Passive House Classes. Plus and Premium classes call for increased overall efficiency (figures on the right) and also require a certain amount of renewable energy generation (figures on the left).}}]
-===== PER factors =====
+The heating demand of a Passive House may not exceed 15 kWh/(m²a). This fundamental requirement applies across all three Passive House Classes and reflects the "efficiency first" or "fabric first" approach of the Passive House concept. The assessment of the different classes is driven by the total primary energy demand, as well as renewable energy supply (on-site or nearby). The evaluation methodology "Primary Energy Renewable" (PER) (see details below), serves as a basis for the assessment of the Passive House Classes. In the case of the **Passive House Classic** category, the renewable primary energy demand must not exceed 60 kWh/(m²a). A building built to **Passive House Plus** is more efficient as it may not consume more than 45 kWh/(m²a) of renewable primary energy. It must also generate at least 60 kWh/(m²a) of energy in relation to the area covered by the building. In the case of **Passive House Premium**, the energy demand is limited to just 30 kWh/(m²a), with at least 120 kWh/(m²a) of renewable energy being generated.
+There are different ways of achieving a higher Passive House class. This article shows [[certification:passive_house_categories:classic-plus-premium|examples]] of how to reach the different Passive House Classes.
+The classification is available for newbuild Passive House buildings, as well as for EnerPHit retrofits. In the case of EnerPHit the PER tragets are adjusted slightly to account for the higher heating energy demand limits.
-The sun and wind provide primary electricity. Some of this electricity can be used directly. However, storage capacities are necessary for transferring surplus energy to time periods with lower energy gains. These supply secondary electricity as required, and this is associated with losses. Depending on the type of energy application, the proportion of primary and secondary electricity varies, as do the losses for providing energy. These specific energy losses of an energy application are described as the respective PER factor. The demand for domestic energy is quite constant throughout the year, which is why the share of direct electricity is high and the PER factor is low. In contrast with this, heating is necessary only in winter. In order to provide enough energy in winter, electricity must in part be produced in summer and stored with very high losses for the winter, which results in a high PER factor.
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-[[phi_publications: 2015_Vol. 4.1 Renewable Primary Energy – the future evaluation system ]]
-[[phi_publications: 2015_Vol. 4.2 Evaluation of energy generated on or near a building using the PER system ]]
-[[phi_publications: 2015_Vol. 4.3 The new Passive House Classes based on the PER system and their implications ]]
+===== The PER methodology =====
-[[phi_publications:2015_Vol. 4.4 PER, is electricity (still) a "bad" thing? ]]
+The sun and wind provide primary renewable electricity. Some of this electricity can be used directly. However, storage capacities are necessary for transferring surplus energy to time periods with lower energy gains. These supply secondary electricity as required, and this is associated with losses. Depending on the type of energy application, the proportion of primary and secondary electricity varies, as do the losses for providing energy. These specific energy losses of an energy application are described as the respective PER factor. The demand for domestic energy is quite constant throughout the year, which is why the share of direct electricity is high and the PER factor is low. In contrast with this, heating is necessary only in winter. In order to provide enough energy in winter, electricity must in part be produced in summer and stored with very high losses for the winter, which results in a high PER factor.
-===== Further information on this topic =====
+To learn about the PER methodology in detail, please visit the Passipedia landing page [[basics:energy_and_ecology:primary_energy_renewable_per|"Primary Energy Renewable" (PER)]].
+\\
-[[certification:passive_house_categories:classic-plus-premium|"Classic, Plus, Premium: The new Passive House classes and how they can be reached"]]
+----
-(Lecture given at International Passive House Conference 2015 by Dr. Benjamin Krick)
-[[certification:passive_house_categories:per|"The PER sustainability assessment"]]
+====== See also ======
-(Lecture given at International Passive House Conference 2015 by Jessica Grove-Smith)
-[[http://passivehouse.com/03_certification/02_certification_buildings/01_benefits-of-certification/01_benefits-of-certification.htm|"Current building criteria including the categories Classic, Plus and Premium"]]
+[[http://passivehouse.com/03_certification/02_certification_buildings/01_benefits-of-certification/01_benefits-of-certification.htm|Current building certification criteria]] including the categories Classic, Plus and Premium
-//We welcome any questions or comments regarding the new Passive House categories, PER factors or draft building certification criteria. Please send them to [[info@passivehouse-international.org]].//
+Browse implemented projects worldwide in the online [[http://www.passivhausprojekte.de/index.php?lang=en | Passive House Database]]. Use the advanced search to filter for Passive House or EnerPHit Class Classic/Plus/Premium.
+[[.:passive_house_categories:classic-plus-premium|]] (Lecture given at the 19th International Passive House Conference 2015 by Dr. Benjamin Krick)
+iPHA fact sheet [[phi_publications:2015_vol._4.3_the_new_passive_house_classes_based_on_the_per_system_and_their_implications|No. 3: The new Passive House Classes based on the PER system and their implications]]
+Passipedia landing page [[basics:energy_and_ecology:primary_energy_renewable_per|"Primary Energy Renewable" (PER)]]
+//We welcome any questions or comments regarding the Passive House categories, PER factors or building certification criteria. Please send them to [[info@passivehouse-international.org|info@passivehouse-international.org]].//
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