This is the first Energy Star qualified home in British Columbia, according to builder Mandala Homes. The company’s been around since 2000, and this is their new, round showcase with passive solar design, tuned windows, non-toxic finishes, a custom greenhouse, and all sorts of materials that emphasize energy efficiency. It’s owned by Mandala Homes president Lars Chose and partner Rachel Ross.
A couple years ago, Kjellgren Kaminsky Architecture and builders Höllviksnäs Förvaltnings AB won an open competition for four Passivhaus homes on a vacant lot in the city of Malmö, Sweden. The team won the competition and the low-energy houses are now finished. The project may be referred to as Salongen 35 and includes a greenhouse, green roof, gray water treatment, and solar panels.
The main driver for the performance and affordability of the recently-mentioned Rainbow Duplex is a panelized prefab system of construction that was designed to help projects meet the Passive House standard. BC Passive House in Canada has a manufacturing plant that’s making these panels, and I thought it would be interesting to share what’s inside the company’s next-gen, high-performance panels.
This is a follow-up with new photos to our original coverage of an affordable Passive House duplex located near an affluent ski resort in British Columbia. Referred to as the Rainbow Duplex, the home was designed by Marken Projects and built by Durfield Constructors with a high-performance, panelized prefab system by BC Passive House.
A company called Solyndra pioneered the solar tube but this new invention by UK-based Naked Energy may just take cylindrical solar to a whole new level. Called Virtu, the product includes an integrated photovoltaic cell in a vacuum tube to generate both electricity and warm water at the same time. The setup keeps the PV cool to optimize energy production and maximizes space with a combined PVT solution.