Environmental and health related criteria for buildings - ANEC

IBO - Environmental and Health related Criteria for Buildings
The amount of energy intended to be contributed by renewable energy systems, in MJ/m² per year, not
including daylighting or Ground Source Heat Pumps (GSHP). The assessment proposal for small
residential buildings ranges from 50 (acceptable practice) – 100 MJ/m² per year (best practice)
If a feasibility study concerning the use of renewable energy sources (e.g wind energy, small
hydro, photovoltaics, solar air heating, biomass heating, solar hot water heating, passive
solar heating and ground-source heat pumps) has been carried out, this is additionally
awarded within subsection A2. Project Planning.
Electrical Peak Demand
SBTool assesses not only the annual energy requirement of buildings based on average
climate data and user behaviour, but also the electrical peak demand (which are key
parameters for the power supply systems). Not only the energy consumption averaged over
one year should be lowered but also saisonal or daily peak loads.
Embodied Energy
Energy for constructing the building on site, for maintenance and refurbishment of building
elements or HVAC systems or removal/disposal/recycling processes and the end of life-time
are not explicitly mentioned. The focus lies on the first material input and the operation
phase.
The same division as for energy (embodied in construction materials and caused by facility
operations) is maintained for Greenhouse Gas Emissions (GHG). For all other atmospheric
emissions calculated within the SBTool such as ozone-depleting substances, acidifying
emissions or emissions creating photo-oxidants only facility operations are looked upon.
Traffic-related Energy Aspects
Besides the requirement for regional products for construction (B4.9), the main focus of
assessment lies on private car journeys during the operation phase. Site Selection (A1) is
evaluated by assessing the proximity of site to public transportation, distance between site
and centres of employment, proximity to commercial and cultural facilities as well as public
recreation areas and facilities. SBTool also awards initiatives of communities to decrease
traffic by policies governing use of private vehicles, encouraging builders to provide mixed
uses within the project and enhancing community design that provides support for walking in
and around the project. The project layout shall consider bicycle storage facilities, where
cycling paths are available, and provide a safe, convenient and attractive environment for
walking.
Weightings
SBTool attempts to derive the weighting of categories and indicators from the expected
extent of the potential effect (global or regional = 3, urban or neighbourhood = 2, building or
site = 1), from the expected intensity of a potential effect (strong or direct = 3, moderate or
indirect = 2, weak = 1) and from the expected duration of a potential effect (> 50 years = 3;
> 10 years = 2; < 10 years = 1) leading to the following weighting within the categories “B
Final Report 60 31 03 2011