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basics:passive_house_-_assuring_a_sustainable_energy_supply:passive_house_the_next_decade [2019/02/28 09:56] – [Focus – basis of efficiency criteria] cblagojevicbasics:passive_house_-_assuring_a_sustainable_energy_supply:passive_house_the_next_decade [2024/04/18 22:30] (current) – jgrovesmith
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 ====== Passive House – the next decade ====== ====== Passive House – the next decade ======
  
-===== Focus – basis of efficiency criteria =====+//This article is an based on the paper “Passive House - the next decade” presented at the 18th International Passive House Conference 2014 in Aachen. The original article is availabe in the conference proceedings [Feist 2014].// \\ 
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 +===== Efficiency Criteria =====
  
 Major changes in the energy supply structure over the next few years will lead to constantly changing primary energy factors. For that reason alone, the frequently used nonrenewable primary energy demand will no longer be suitable for assessing buildings' energy efficiency. \\ Major changes in the energy supply structure over the next few years will lead to constantly changing primary energy factors. For that reason alone, the frequently used nonrenewable primary energy demand will no longer be suitable for assessing buildings' energy efficiency. \\
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   * The second issue in point 3 (low power density) results from the resources – in this case, the amount of space – that renewable structures require. These resource requirements are fundamentally different from those of fossil energy, where resource consumption is irreversible (hydrocarbon consumed) and product disposal leads to permanent pollution (CO<sub>2</sub> in the atmosphere causes climate change; in the water, acidification). Renewables' resource requirements, on the other hand, are of a more aesthetic nature, with turbines easily seen throughout the landscape and PV arrays taking up large areas. It is important that PV arrays be installed on spaces already being used in some way, such as building roofs, façades, traffic routes and their boundary areas, etc. One problem related to space issues is of a social/economic nature. Land is already the most expensive natural resource, largely because there is already quite a bit of competition for using it and because it will be considered even more valuable in the future as the global population continues to grow – along with resource requirements. One way to measure the utilisation rate of renewable resources is by looking at overall primary electricity required (in kWh, power from wind, hydro, and PV systems). In this paper, this value will be referred to as //renewable primary energy//, or PER. PER is an ideal standard for assessing a structure's sustainability. To get an even clearer idea, PER can also be converted (with a generalized method) into regionally required //equivalent PV generation area//; at this time, an overall PV utilisation rate of ten percent (including line and conversion losses, shading, and dirty areas) can be assumed. An average of 1,000 kWh/m² of global insolation can be used for central Europe, which means that each 1 MWh requires an equivalent PV generation area of about 10 m². \\ \\   * The second issue in point 3 (low power density) results from the resources – in this case, the amount of space – that renewable structures require. These resource requirements are fundamentally different from those of fossil energy, where resource consumption is irreversible (hydrocarbon consumed) and product disposal leads to permanent pollution (CO<sub>2</sub> in the atmosphere causes climate change; in the water, acidification). Renewables' resource requirements, on the other hand, are of a more aesthetic nature, with turbines easily seen throughout the landscape and PV arrays taking up large areas. It is important that PV arrays be installed on spaces already being used in some way, such as building roofs, façades, traffic routes and their boundary areas, etc. One problem related to space issues is of a social/economic nature. Land is already the most expensive natural resource, largely because there is already quite a bit of competition for using it and because it will be considered even more valuable in the future as the global population continues to grow – along with resource requirements. One way to measure the utilisation rate of renewable resources is by looking at overall primary electricity required (in kWh, power from wind, hydro, and PV systems). In this paper, this value will be referred to as //renewable primary energy//, or PER. PER is an ideal standard for assessing a structure's sustainability. To get an even clearer idea, PER can also be converted (with a generalized method) into regionally required //equivalent PV generation area//; at this time, an overall PV utilisation rate of ten percent (including line and conversion losses, shading, and dirty areas) can be assumed. An average of 1,000 kWh/m² of global insolation can be used for central Europe, which means that each 1 MWh requires an equivalent PV generation area of about 10 m². \\ \\
  
-===== Read more =====+===== Read more (subchapters) =====
  
 [[basics:passive_house_-_assuring_a_sustainable_energy_supply:passive_house_the_next_decade:Methodology]] \\ [[basics:passive_house_-_assuring_a_sustainable_energy_supply:passive_house_the_next_decade:Methodology]] \\
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 **[[http://passiv.de/literaturbestellung/index.php/en/product/view/45/1433|[Feist 2013b]]]** Feist, W.: "Energy concepts - the Passive House in comparison"; Conference proceedings of the 17th International Passive House Conference; Passive House Institute, Darmstadt / Frankfurt 2013 **[[http://passiv.de/literaturbestellung/index.php/en/product/view/45/1433|[Feist 2013b]]]** Feist, W.: "Energy concepts - the Passive House in comparison"; Conference proceedings of the 17th International Passive House Conference; Passive House Institute, Darmstadt / Frankfurt 2013
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 +**[Feist 2014]** Feist, W.: "Passive House – the next decade." In: Feist, Wolfgang (Hrsg.): Tagungsband zur 18. Internationalen Passivhaustagung 2014 in Aachen. PHI Darmstadt 2014 
  
 **[Feist 2014]** Feist, W.: "Passive House is more… "; Conference proceedings of the 18th International Passive House Conference; Passive House Institute, Darmstadt / Aachen 2014 //(soon on Passipedia)// **[Feist 2014]** Feist, W.: "Passive House is more… "; Conference proceedings of the 18th International Passive House Conference; Passive House Institute, Darmstadt / Aachen 2014 //(soon on Passipedia)//
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 **[Welter 2012]** Welter, P. "Vollversorgung mit Sonne und Wind bis 2030", Photon Oktober 2012 \\ **[Welter 2012]** Welter, P. "Vollversorgung mit Sonne und Wind bis 2030", Photon Oktober 2012 \\
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 ====== See also ====== ====== See also ======
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 +[[basics:energy_and_ecology:primary_energy_renewable_per]] - Passipedia Landing Page
  
 [[phi_publications:international_passive_house_conference_contributions_4|List]] of all released conference proceedings of the 18th International Passive House Conference 2014 in Aachen [[phi_publications:international_passive_house_conference_contributions_4|List]] of all released conference proceedings of the 18th International Passive House Conference 2014 in Aachen
basics/passive_house_-_assuring_a_sustainable_energy_supply/passive_house_the_next_decade.1551344188.txt.gz · Last modified: 2019/02/28 09:56 by cblagojevic