The Energy Efficiency; A Main Rating Category for Sustainable New Construction in Egypt

2018 ◽  
Author(s):  
Hazem R. Bonna ◽  
Ahmed S. El-Hakim ◽  
Hatem S. El-Behairy
Keyword(s):  
Energy Efficiency ◽  
New Construction ◽  
Rating Category

scholarly journals Problems of energy-efficient construction in the Republic of Kazakhstan and the development of a methodology for determining the energy efficiency of buildings and structures

2020 ◽  
Vol 77 (4) ◽  
pp. 189-199
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Hot Water ◽  
Construction Sector ◽  
Progressive Development ◽  
Efficient Construction ◽  
New Construction ◽  
The Republic ◽  
Housing Facilities

The progressive development of the economy of the Republic of Kazakhstan is impossible without solving the issues of increasing energy efficiency and energy conservation. These issues are very relevant in the construction sector of Kazakhstan. Housing facilities, on average, consume 2-3 times more heat per square meter, than buildings in Europe. However, in Kazakhstan until now there is no methodology for determining the energy efficiency of buildings and structures that meets modern requirements. The methodology discussed in this article is harmonized with EU requirements and establishes a method for calculating the annual energy consumption of buildings for heating, hot water, ventilation and air conditioning, taking into account auxiliary energy for the operation of these systems, and is intended for use in the design of new construction, reconstruction (modernization) residential and public buildings, as well as operated buildings and structures.

scholarly journals ENERGY EFFICIENCY IN RESIDENTIAL BUILDINGS, LESS STRAIGHT FORWARD THEN PRESUMED

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Hugo Hens
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Energy Use ◽  
Low Voltage ◽  
Residential Buildings ◽  
Primary Energy ◽  
Heating And Cooling ◽  
Net Zero ◽  
Energy Conserving ◽  
New Construction

Since the 1990s, the successive EU directives and related national or regional legislations require new construction and retrofits to be as much as possible energy-efficient. Several measures that should stepwise minimize the primary energy use for heating and cooling have become mandated as requirement. However, in reality, related predicted savings are not seen in practice. Two effects are responsible for that. The first one refers to dweller habits, which are more energy-conserving than the calculation tools presume. In fact, while in non-energy-efficient ones, habits on average result in up to a 50% lower end energy use for heating than predicted. That percentage drops to zero or it even turns negative in extremely energy-efficient residences. The second effect refers to problems with low-voltage distribution grids not designed to transport the peaks in electricity whensunny in summer. Through that, a part of converters has to be uncoupled now and then, which means less renewable electricity. This is illustrated by examples that in theory should be net-zero buildings due to the measures applied and the presence of enough photovoltaic cells (PV) on each roof. We can conclude that mandating extreme energy efficiency far beyond the present total optimum value for residential buildings looks questionable as a policy. However, despite that, governments and administrations still seem to require even more extreme measurements regarding energy efficiency.

Evaluation of Energy Efficiency for Residential New Construction (RNC) Single Storey Terrace House

2014 ◽  
Vol 699 ◽  
pp. 877-882
Author(s):  
A.M. Kassim ◽  
M.S. Jamri ◽  
M. Nazri Othman ◽  
Hazriq Izzuan Jaafar ◽  
S.J.S. Ismail
Keyword(s):  
Energy Efficiency ◽  
Natural Resources ◽  
Natural Disasters ◽  
Human Health ◽  
Major Part ◽  
Negative Impact ◽  
Global Solutions ◽  
Green Buildings ◽  
Light Illumination ◽  
New Construction

The impermanence changing of the climates that cause many natural disasters these days has raised the attention of us about the importance of greening towards our planet. The building sector has been verified as the major part of the global solutions. Hence, Green Rating Tools are recommended internationally to guide the developers and public in designing and developing green buildings in order to reduce the negative impact towards human health and environment due to increasing use of natural resources. The research on energy efficiency of Residential New Construction (RNC) was successfully done and analyzed by using the DIALux software and light illumination calculations.

scholarly journals Consequences of the BC Energy Step Code on Offsite Construction

2019 ◽  
pp. 454-461
Author(s):  
Guido Wimmers ◽  
Alison Conroy
Keyword(s):  
Energy Efficiency ◽  
Construction Industry ◽  
Energy Performance ◽  
Efficient Solutions ◽  
Wood Construction ◽  
Net Zero ◽  
New Construction ◽  
Air Tightness ◽  
Cost Efficient ◽  
Near Future

In Canada, off-site construction is still the exception rather than the norm when it comes to wood construction. In Europe’s Alpine Region or Scandinavian countries, off-site construction is standard when it comes to wood construction. This paper will focus on the reasons why Canada’s wood construction industry will shift from mainly on-site to mainly off-site construction over the next 10 to 15 years. In countries with relatively demanding requirements on energy efficiency and air tightness, off-site construction has been dominating the market for more than 20 years. British Columbia adopted the BC Energy Step Code in 2017, a roadmap defining the energy efficiency of buildings over the coming years leading up to 2032, when all new construction will be required to be Net Zero ready. It is expected that the National Building Code of Canada will also encourage higher energy performance levels in the near future. Consequently, thermally better-performing envelopes will have to be produced and rigorous air tightness levels will have to be achieved for the sustainability goals given by the province. Envelope assemblies will get thicker, bulkier and heavier to meet these requirements. In this regard, a market shift to a greater amount of off-site construction is likely to be experienced to meet these targets in a controlled environment. This study is exploring the direct and indirect connections between sustainability and energy efficiency requirements given by codes to technical and cost-efficient solutions offered by industry.

scholarly journals New Construction of an Energy-surplus Day Care Center for Children to Experience Energy-efficiency

2014 ◽  
Vol 48 ◽  
pp. 1474-1481
Author(s):  
Anna Hoier ◽  
Hans Erhorn ◽  
Michaela Hoppe ◽  
Bernhard Asböck ◽  
Joachim Daubenmerkl
Keyword(s):  
Energy Efficiency ◽  
Day Care ◽  
Care Center ◽  
Day Care Center ◽  
New Construction ◽  
Energy Surplus
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