Passive Houses are highly insulated, airtight, cold
bridge free structures with triple glazing and HRV, so they require
A Tri-Solar Roof transforms a Passive House into an Energy+ House generating sufficient excess energy to power an electric car.
A 4kW AED eliminates the sewage connection and transforms an Energy+ House into a Passive Power House, generating sufficient excess revenue to pay the mortgage.
Passive Power Houses are now available at similar prices to traditional construction, our first 20 house project will be built in Wales this Autumn with sites starting up in 2015 throughout the Uk!
Since 2009 we've built 30-40 Certifiable Passive Houses per annum but haven't certified many because Passive Houses are too far (55kWh/m2.annum) from Zero Energy and Energy Plus to warrant a costly certificate.
Spot checks on 3 houses carried out in 2013 showed PHPP calculations between 7-11kWh/m2.annum.
We constantly improve our technology by developing well engineered, reasonably priced concepts that solve the problems we've encountered with Energy + House Construction.
In 2006 we patented the Passive Slab foundation system that's cheaper, quicker and better than traditional strip foundations. We complete Passive Slabs in 3-4 days and built more than 500 to date so its been a great success.
In 2008, we developed the Twin-Stud wall and roof system to produce Cold Bridge free structures without increasing costs or factory production time. It integrates perfectly with the Passive Slab, eliminates the threshold cold bridge and enables us to deliver Passive structures for the same price as a standard wall.
In 2010, we developed the FreshR HRV system to eliminate filters and ducts, switching on when somebody enters the house, self balancing and with a 7 year payback. It solves the problems associated with Ducted Heat Recovery Ventilation, like having to leave it always on, after 2 years 50% of units are unbalanced, only 10% of people in the Uk change filters and the long 45 year payback period.
In 2012, Tri-Solar Roofs generate all the energy required by a Passive House and an electric car and removes the kit from the plant room. A Tri-Solar Roof combines Solar Thermal/Solar PV and a roofing system into one panel and is installed for the same price as a traditional Gas Boiler/Solar Thermal hot water and heating system but eliminates the bills.
In 2014, fridge sized Bio-Digester/CHP units generate sufficient income from the waste stream of a house to pay off the mortgage in 15 years. For the cost of a sewage connection these units (operating at 91 degrees) generate 10-12kWh per kg of waste. An average family producing 50kg of waste per week generates 4kWh of electricity, winter and summer.