ENERGY EFFICIENCY NATIONAL BUILDING … and Us… · · 2015-07-23Develop and implement energy...
Transcript of ENERGY EFFICIENCY NATIONAL BUILDING … and Us… · · 2015-07-23Develop and implement energy...
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National Energy Efficiency Strategy
of the Republic of South Africa
March 2005 ( Reviewed 2008 / 2011 )
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OBJECTIVES
● Develop and implement energy efficiency practices in SA
● Contribute to affordable energy for all
● Minimise the negative effects of energy usage upon
● human health and the environment
● Set a national target for energy efficiency improvement
● [ 12% by 2015 ]
● Cover all energy-using sectors
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ACHIEVED THROUGH
● Economic and legislative means
● Efficiency labelling
● Performance standards
● Energy management
● Energy auditing
● Promote efficiency practices
National Building Regulations and
Building Standards Act (Act No. 103 of 1977)
SANS 10400-XA SANS 204
SANS 10252 EE
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ENERGY USAGE SECTORS
● Industry and Mining
● Commercial and Public Buildings
● Residential
● Transport
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National Building Regulations
and
Building Standards Act
No. 103 of 1977
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Part X: Environmental sustainability
XA: Energy usage in buildings
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XA: Energy usage in buildings
XA1
● To contribute to the reduction of greenhouse gases
– buildings, and
– extensions to buildings
of occupancy classifications... EE
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● A1 - Entertainment and public assembly
● A2 - Theatrical and indoor sport
● A3 - Places of instruction
● A4 - Worship
● C1 - Exhibition hall
● C2 - Museum
● E1 - Place of detention
● E2 - Hospital
● E3 - Other institutional (residential)
● E4 - Health care
● F1 - Large shop
● F2 - Small shop
● F3 - Wholesaler's store
● G1 - Offices
● H1 - Hotel
● H2 - Dormitory
● H3 - Domestic residence
● H4 - Dwelling house
● H5 - Hospitality
excluding: garage and storage areas contained within such occupancies
Not covered by NBR Part X A5 - Outdoor sport B1 - High risk commercial service B2 - Moderate risk commercial service B3 - Low risk commercial service D1 - High risk industrial D2 - Moderate risk industrial D3 - Low risk industrial D4 - Plant room
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shall be designed and constructed so that they...
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(a)
● use energy efficiently in relation to:
– vertical transport;
– thermal comfort;
– lighting; and
– hot water; or... EE
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(b)
● have:
– building envelope; and
– services
which facilitate efficient use of energy appropriate to their:
● function and use,
● internal environment; and
● geographical location.
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Equipment and plant for conducting business – excluded.
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XA2
● At least 50% annual average hot water heating shall be:
– by means other than electrical resistance heating
● including but not limited to:
– solar heating;
– heat pumps;
– heat recovery systems / processes; and
– renewable combustible fuel.
(volume fraction) calculated in accordance with SANS 10252-1
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XA3
● XA1 shall be deemed satisfied when:
– building is:
● designed; and
● constructed
in accordance with - EE
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(a)
● SANS 10400-XA requirements for:
– orientation;
– shading;
– services; and
– building envelope; or...
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(b)
● rational design prepared by competent person:
– which demonstrates that energy usage of building is:
● equivalent to; or
● better than;
that which would be achieved by compliance with
SANS 10400 XA, or...
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(c)
● theoretical energy usage performance,
– less than; or
– equal to;
a reference building in compliance with SANS 10400-XA :
( using certified thermal calculation software )
certified thermal calculation software software certified by Agrément SA, in terms of Agrément SA Energy Software Protocols
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- BSIMAC (Version 9) Building Energy Analysis Software
- DesignBuilder (Version 3.1) Building Energy Analysis Software
- IES Virtual Environment Software (Version VE 2013)
- StarFront Software for designing compliant aluminium windows and doors
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(a) Functional regulations of part XA of NBR satisfied where:
● competent person certifies building as having:
– theoretical annual energy consumption; and
– theoretical annual energy demand
less than or equal to collected data tabled
● A1, A2, A3, A4, F1, G1, or H1,
● (excluding garage and storage areas), or...
A1 - Entertainment and public assembly A2 - Theatrical and indoor sport A3 - Places of instruction A4 – Worship F1 - Large shop G1 – Offices H1 - Hotel
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(b) Functional regulations of part XA of NBR satisfied where:
● building:
– orientation;
– shading;
– external walls;
– fenestration;
– roof assembly construction;
– in-slab heating installation;
– services that use energy or control the use of energy:
● heating, air conditioning and mechanical ventilation;
– hot water system
is in accordance with requirements of SANS XA & 204
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● A1 - Entertainment and public assembly
● A2 - Theatrical and indoor sport
● A3 - Places of instruction
● A4 - Worship
● C1 - Exhibition hall
● C2 - Museum
● E1 - Place of detention
● E2 - Hospital
● E3 - Other institutional (residential)
● E4 - Health care
● F1 - Large shop
● F2 - Small shop
● F3 - Wholesaler's store
● G1 - Offices
● H1 - Hotel
● H2 - Dormitory
● H3 - Domestic residence
● H4 - Dwelling house
● H5 - Hospitality
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(c) Functional regulations of part XA of NBR satisfied where:
● competent person certifies building as having:
– theoretical annual energy consumption; and
– theoretical annual energy demand
less than or equal to reference building complying with (b) EE
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RESPONSIBILITY
for
DESIGN ACHIEVING COMPLIANCE ?
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LOCAL AUTHORITY
WHY ??
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AZ4 Complying with the requirements of the
National Building Regulations
(1) National Building Regulations shall be complied with by:
(a) adhering to all prescriptive regulations; and
(b) satisfying all functional regulations by:
(i) adopting solutions that comply with SANS 10400;
or
(ii) rational design / assessment having equivalent /
superior performance to solution complying with
SANS 10400.
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PART A - ADMINISTRATION
A1 APPLICATION
(1) Designing, planning and the supervision of the erection of any
building or structure...
...is subject to the provisions of any law in terms of which the
person undertaking such work...
...is required to be registered in terms of the
Architectural Profession Act, 2000,
Engineering Profession Act, 2000,…, or
any other relevant Act.
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A2 PLANS AND PARTICULARS TO BE FURNISHED
(1) Any person intending to erect any building shall submit to the
local authority the following plans and particulars,
together with the application:...
(g) a declaration by a person registered in a professional
category of registration...
...in Form 1 contained in SANS 10400-A
as to how the applicable functional regulations
shall be satisfied;
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Identify the applicability of the Regulation i.t.o the proposal. Do NOT leave blank or tick both.
FORM 1
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FORM 1
Competent person is as defined in the related SANS 10400 code and are function specific.
Name of person to be appointed to be identified, not name of business representing
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FORM 2
Owner and competent person both initial confirming the work the competent person is responsible for and for which certification will be required on completion of the building. Such being necessary prior to applying for a Certificate of Occupation from the local authority.
The applicable duty is determined by that identified in Schedule B of Form 1.
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The acceptance of a competent person by a local authority is application specific and forms part of the approval of an application.
FORM 2
Aspects the local authority must consider when considering the acceptability of a competent person i.t.o the work for which appointed
Acceptability or Not of competent person to be endorsed by the local authority on consideration of the application
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Competent person to identify the aspect/s for which the “Certificate of Completion” is
being issued
Certificate of Completion is issued i.t.o an “APPROVAL” granted by the local authority. Certificate of Completion cannot be issued i.t.o work for which no approval has been granted or which deviates from an approval granted (unauthorised work ?)
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RESPONSIBILITY
for
DESIGN ACHIEVING COMPLIANCE ?
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APPOINTED
REGISTERED PROFESSIONAL
OR
COMPETENT PERSON
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BUILDING APPLICATION APPROVAL
● Based on:
– Application & supporting documentation;
– Declaration by Appointed Registered Professional;
– Building Plans – NBR compliance EE
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DEVIATION FROM APPROVAL
● Results in:
– Building Plan approval no longer being valid;
– Declaration by Registered Professional being voided;
– NBR compliance may no longer be possible.
Minor changes may have major impact on Energy Efficiency compliance achieved by original design solution
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Requirement for Water Layouts
SANS 10252-1
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Water Services Act
No. 108 of 1997
Regulations Relating to Compulsory National Standards
and Measures to Conserve Water
R 509 of 8 June 2001 EE
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Consumer installations other than meters
14. Every consumer installation must comply with
- SABS 0252: Water Supply and Drainage for Buildings and
- SABS 0254: The Installation of Fixed Electric Storage Water
Heating Systems, or
any similar substituting re-enactment or amendment thereof if the
consumer installation is of a type regulated by either standard.
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Read as: SANS 10252 – 1 & 2 and SANS 10254
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SANS 10400-XA
4.1.1
To comply with regulation XA2 :
(a) volume of annual average hot water heating requirements
shall be calculated i.t.o tables 2 and 5 of SANS 10252-1; and
(b) if solar water heating systems are used, these shall comply
with SANS 1307, SANS 10106, SANS 10254 and
SANS 10252-1.
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