A passive house, by its nature, requires a much smaller amount of energy than a typical home, and when its heating demand is met by electricity, and you cover it in solar PV panels, you can start to see the potential for a whole new generation of passive homes that are semi-independent of the electricity grid. This is the case for Carrstone House in Bedfordshire, which generates so much solar energy it had to be registered as a power station.
A new development in County Wicklow demonstrates how typical housing estates might be turned into electricity microgrids through solar power and battery storage, with residents buying and selling renewable energy from each other, helping to insulate them from price spikes and outages.
A passive house, by its nature, requires a much smaller amount of energy than a typical home, and when its heating demand is met by electricity, and you cover it in solar PV panels, you can start to see the potential for a whole new generation of passive homes that are semiindependent of the electricity grid. This is the case for Carrstone House in Bedfordshire, which generates so much solar energy it had to be registered as a power station.
Passive house expert Tomas O’Leary has been heralded for his decades of low energy building pioneering – picking up the Net Zero Champion Award at the inaugural Towards Net Zero Awards at the RDS in November.
While significant progress continues to be made on reducing the carbon emissions associated with heating and powering buildings, the other part of whole life carbon calculation, embodied carbon, has proved more elusive. But that may be about to change, and quickly, as Stephen Barrett of the Irish Green Building Council (IGBC) explains.
In trickier housing markets, the instincts of house builders have often tended towards building to the worst legal standards required – or worse. One award-winning new project in Belfast’s suburbs is showing that it doesn’t have to be this way – and that developers can thrive by pitching homes designed to ensure comfort and low bills at increasingly energy-conscious consumers.
The spectre of high rise and reduced spacing between homes may cast a proverbial and literal shadow over new homes, if an anticipated government policy comes to pass. Mel Reynolds asks: could passive house offer a new route to achieving higher density without reaching for the skies?