Completed projects Completed Projects: Certified Passive Homes by Altereco Design

Spotswood Possum House: Project Overview

Certified Passive House Classic
0.38 ACH
13.9kWh/(m²a)
less than 11% (when not using AC for cooling)
0%
The total solar energy required for the house is 8,300 kWh per year, which calculates to roughly 692 kWh per month. This is a calculated average based on assumed usage. The energy demand will be different in reality based on outside factors (temperature, daylight etc.) and indoor factors (electricity use of services, appliances, electronics etc.).

With a 12,175 kWh solar PV system the house will generate sufficient energy throughout the year to supply the required electricity demand, without the need for the grid or batteries (Passive House doesn’t account for battery storage yet). This translates to 25x 350W PV panels. The calculation doesn’t take into account Electrical Vehicle charging.
custom design
Carland Constructions
Jade Cantwell

Certified Passive House Classic
0. ACH
13.9kWh/(m²a)
less than 11% (when not using AC for cooling)
0%
The Champion Possum House has a Primary Energy Renewable (PER) demand of 34.4 kWh/(m²a), equating to approximately 5,600 kWh per year (or 5.6 MWh annually).
This averages out to around 467 kWh per month. Actual energy demand will vary throughout the year, influenced by external conditions such as temperature and daylight hours, as well as internal factors like the use of appliances, services, and electronics.
A 9.74 kW photovoltaic (PV) system has been specified to meet this annual demand, making the project eligible for Passive House Plus classification. This system comprises 20 x 350W panels.
Please note: These calculations do not account for battery storage or electric vehicle (EV) charging.
Riverland
Carland Constructions
Jade Cantwell