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Table – NEV Building Ratings Scheme Summary - The Initial Minimum Reduction Levels
CATEGORY
SUB-CATEGORY
GOAL
MEASUREMENT CRITERIA
INITIAL VILLAGE MINIMUM*
Water
Potable Water Usage
Conserve drinking water from NEV dam
Water efficient devices; Water effective landscaping & gardens; Use of recycled water in house; Strategies for high water demand features e.g. irrigation
70% reduction
Stormwater Greywater & Black-Water Management
Conserve drinking water; reduce stormwater, greywater, blackwater; consume recyclable surplus
Water Sensitive Urban Design (WSUD); how stormwater is harvested; ponds; rain gardens; infiltration systems; buffers incl. water tanks; swales; waterless toilets; where recycled water is utilised
70% reduction
Energy
Thermal Performance
Decrease Energy usage
Passive solar house design considering orientation, windows, insulation, thermal mass, shading and ventilation
7 stars’ minimum**
Energy
Other Energy Usage
Decrease Other Energy usage
Building Management System (BMS); Heating & cooling methods; Hot water units; Appliances; Lighting (type, flexibility & optimizing); Standby power usage; Clothes drying
70% reduction
Renewable Energy
To at least meet annual demand
Photovoltaic panels
At least meet annual demand
Peak Power Demand
Reduce summer and winter peak loading
Standby switches/ power boards; Energy monitoring system; Basic control system e.g. timer; Remote control system (app?); Separate circuits for non-essential appliances; load shifting by Electricity Provider; have PV plus battery system; western facing panels; panel pitch to suit winter sun angle; surplus renewable energy above that required to meet the energy demand over the year
(Points are awarded for these items)
Materials
Materials
Lower the health & environmental impact of materials for sourcing, production and disposal
Having a minimum amount of materials; being durable; designing for ease of deconstruction at end of building life; low embodied energy; high recycled content; natural and renewable resource materials; low human health impact materials; locally sourced materials
(Points are awarded for these items)
Waste
Waste
Domestic and construction
Recycle waste streams; reuse and recycling of construction wastes; design to minimise offcuts & waste with prefabrication, using standard sizes etc.
(Points are awarded for these items)
Owners to demonstrate how elements exceed Category minimums
NB: Any innovative proposals need preliminary assessment from the BRP at the early design stage.
Other
Adaptability; Resilience; Noise; Livability
Notes
* Initial Minimum reduction in the BASIX benchmark of average NSW household usage per person (in 2004).
** Owners should aim to have their dwellings achieve more than 7 stars where costs are not prohibitive. This will help to provide a higher average Narara Ecovillage Standard across all Categories.
Link the Design Assessment Scoresheet
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