
ENERGY EFFICIENCY CONSULTING FOR BUILDINGS ACROSS AUSTRALIA.
Section J of the National Construction Code, BASIX and NatHERS set mandatory energy efficiency requirements for buildings across Australia. Non-compliance holds up your DA, Construction Certificate and Occupation Certificate. EBS Consultants assess your building against these requirements and provide the models, reports and certifications you need.
Modelling Tools We Use
Our energy efficiency services.
BASIX and NatHERS Assessments
BASIX (Building Sustainability Index) is mandatory for residential developments in NSW. NatHERS (Nationwide House Energy Rating Scheme) is used nationally for thermal comfort assessments. EBS uses HERO building performance software to model your development against BASIX and NatHERS targets, assessing orientation, floor plan, shading, ventilation, glazing and insulation to produce the required certificate.
Section J Compliance
Section J of the NCC sets energy efficiency requirements for commercial and mixed-use buildings, covering building fabric, glazing, HVAC, artificial lighting and heated water. EBS conducts Section J assessments using architectural and facade specifications to determine compliance with the deemed-to-satisfy provisions. Where DTS creates cost or design constraints, we identify whether the J1V3 Verification Method offers a more practical pathway.
J1V3 Verification Method
The J1V3 Verification Method allows buildings to demonstrate Section J compliance by modelling annual greenhouse gas emissions against NCC limits, rather than satisfying every individual DTS provision. EBS uses IES VE modelling software for J1V3 assessments. This pathway is often more economical for projects with complex facades or non-standard glazing specifications.
Condensation Management
From NCC 2022, condensation management plans are required for Class 2 buildings and certain other types. EBS conducts hydrothermal modelling assessments to quantify condensation risk in external walls and roofs, and recommends design and material solutions to manage the risk and achieve NCC compliance.
Home Energy and Thermal Comfort Simulation
For residential projects where occupant comfort is a priority, EBS models internal temperatures room by room, factoring in glazing, insulation, shading and external climate data. This allows comparison of specifications and cost-effectiveness of upgrades.
Natural Light Modelling
EBS uses RadianceIES software to model natural light compliance in buildings, particularly for developments with windows near property boundaries or where overshadowing may limit daylight access to habitable rooms.
DCP and SEARs ESD Reports
Many councils and state-significant development assessments require Ecologically Sustainable Development (ESD) reports under DCPs or Secretary's Environmental Assessment Requirements (SEARs). EBS prepares ESD reports assessing your development against these requirements.
Compliance Inspections and Completion Statements
EBS provides on-site compliance inspections and completion statements for energy efficiency measures, giving the principal certifier documented evidence that sustainable design commitments have been implemented.
Frequently asked questions.
BASIX (Building Sustainability Index) is mandatory for residential developments in NSW. It sets performance targets for water, energy and thermal comfort. EBS uses HERO building performance software to model your development against BASIX targets.
The J1V3 Verification Method allows buildings to demonstrate Section J compliance by modelling annual greenhouse gas emissions against NCC limits, rather than satisfying every individual deemed-to-satisfy provision. This pathway is often more economical for projects with complex facades or non-standard glazing specifications.
From NCC 2022, condensation management plans are required for Class 2 buildings and certain other types. EBS conducts hydrothermal modelling assessments to quantify condensation risk in external walls and roofs and recommends design and material solutions.
Section J of the NCC sets energy efficiency requirements for commercial and mixed-use buildings, covering building fabric, glazing, HVAC, artificial lighting and heated water. EBS conducts Section J assessments to determine compliance with the deemed-to-satisfy provisions.
Many state-significant development assessments require Ecologically Sustainable Development (ESD) reports under Secretary's Environmental Assessment Requirements (SEARs). EBS prepares ESD reports assessing your development against these requirements.
WANT A MORE EFFICIENT BUILDING?
Talk to our energy efficiency specialists about cutting costs, carbon and meeting Section J, your first consult is free.
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