I read that the construction industry had experimented with adding insulation to new buildings and that energy consumption had failed to reduce. This offended me – it was counter to the basic laws of physics… So I made it my mission to find out what [they were doing wrong] and to establish what was needed to do it right.
The energy supply market is rapidly shifting from fossil fuel to renewable sources. This transition is necessary, not only to comply with European targets and international and regional protocols on climate change (20% share from renewables on total energy supply by 2020), but it’s also the most responsible way to promote energy security.
Ground-breaking housing scheme captures one developer's journey to passive ... The just-finished second phase of Durkan Residential's ambitious Silken Park scheme in south-west Dublin bridges the gap between two extremes: while phase one was built to the 2002 building regulations, phase three - which will break ground next year - will comprise 59 passive certified units.
Thermal mass 'Thermal mass' describes a material's capacity to absorb, store and release heat. For example water and concrete have a high capacity to store heat and are referred to as 'high thermal mass' materials. Insulation foam, by contrast, has very little heat storage capacity and is referred to as having 'low thermal mass'.
Anyone familiar with spending a hot summer's day in a caravan and then another in a stone house with closed shutters will appreciate the meaning of ‘Decrement delay’. The inside of the caravan closely maps the rise and fall in external temperature to provide the familiar stifling effect on the occupants .
If you live in the South (southern USA) and already own solar panels, it could take you just under three years to make up the cost of the $3,000 Tesla Powerwall battery.
Total primary energy consumed from direct and indirect processes associated with a product or service within the boundaries of cradle to gate. This includes all activities from material extraction (quarrying / mining / harvesting), manufacturing, transportation and fabrication until the product is ready to leave the final factory gate.
A new report from the UK Green Building Council (UK-GBC) and University College London (UCL) has warned lenders are using inaccurate models to estimate energy costs. This is leading to many energy efficient properties being undervalued by as much as £45,000 over the life cycle of a mortgage.
Solar energy is a seriously underrated resource. More power from the sun hits the Earth in a single hour than humanity uses in an entire year, yet solar only provided 0.39% of the energy used in the US last year.
Passive House is a building standard that is truly energy efficient, comfortable and affordable at the same time. Passive House is not a brand name, but a tried and true construction concept that can be applied by anyone, anywhere.
“As debate ramps up in Ireland about whether local authorities in Dublin should adopt the passive house standard, and the UK government scraps its plans for zero carbon homes, Dr Shane Colclough urges passive house advocates to prepare for the lobbying battles ahead by remembering the basic science behind the standard.”