Electric Dreams 2024

House Notes – Electric Dreams

For this family home, the priority was to maintain comfort, minimise the carbon footprint, reduce energy costs and long-term impact to the environment. The owners wanted to go fully electric and originally considered building a passive house, however, the cost for a passive house this size was out of their budget. The owners decided on using a mid-size volume builder and worked closely with them to build a fully electric home that was affordable to achieve.

To achieve their goals, the family had the idea of maximising their large roof to maximise a solar system. This system feeds their Tesla battery (to run the house when the sun isn’t shining), charges their electric car, and heats and cools their house. Add to this a highly efficient heat pump to provide hot water and the electricity imported from the grid is minimal across the entire year. To further manage temperature control, all windows are double glazed, all walls, ceilings and the roof are fully insulated and all rooms have ceiling fans.

The owners worked closely with the builder to overcome some challenges that the builder had not previously needed to consider. Catering for a fully electric house requires some additional planning when considering long term usage such as power efficiency and including provision for multiple electric car chargers.

The house has a fully native garden and nature strip that is drought tolerant and requires little to no watering. Whilst there was some concern about the typical “woody” natives, the owners discovered that there is a treasure of native flowering plants that are beyond the stereotype they had in their mind. A rainwater tank was installed to provide water for non-human consumption.

Sustainability Features

Years Open
2024
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Efficient appliances
      Energy monitoring
      Smart home features
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Low flow shower heads
    • Average water consumption per day:
    • 95 L
    • Above ground rainwater storage Size
    • 2000 Ltr
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
    • Electric Vehicle Type
    • Volvo XC40 Pure Electric
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • R6.0
    • Floor Type:
    • Bulk - glass wool
    • Floor Rating:
    • R3.0
    • Under Roof Insulation Type:
    • Roof blanket
    • Under Roof Insulation Rating:
    • R1.3
    • Internal Walls Insulation Type:
    • Bulk – glass wool
    • Internal Walls Insulation Rating:
    • R2.6
    • External Walls Rating:
    • R2.6
    • External Walls Type:
    • Bulk – glass wool
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Renewable energy used:
    • Energy storage/battery
      Solar PV grid connect
    • Size of PV system:
    • 13 kW
    • Average Daily Energy Consumption:
    • 11 kWh including Solar and Battery consumption / 0.8 kWh import.
COSTS AND COST SAVINGS
    • Estimate of annual savings:
    • $4,900
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 418 m2
    • BAL Rating
    • No BAL rating requirements at time of construction
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Aerated concrete
    • Window and Door Types
    • Casement
      Double glazing
      Low-e, films
    • Universal Design Features
    • 80cm minimum door opening width
      Hobless showers
      Lever handles for doors (no knobs)
      Minimum 110cm wide hallways
      Shower head on rail for various heights
      Slip resistant flooring
    • Number of bedrooms
    • 5
    • Number of bathrooms
    • 4
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bee hotels/friendly
      Green walls
      Local indigenous plants
      Native plants
    • Waste Reduction Practices:
    • Recycle
Location
Mount Waverley VIC 3149
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Builder
    • Carter Grange

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