An outstanding issue: The Performance Gap

An outstanding issue: The Performance Gap

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 Progress of Passive House

The Progress of Passive House

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.

Passivhaus Overheating: Design it out

Passivhaus Overheating: Design it out

Passivhaus overheating shouldn’t happen: it’s one of the criteria of the international Passivhaus standard. Even so, people sometimes ignore this requirement during the early stages of the design process.

Windows and Overhangs in Passive Solar Heating

Windows and Overhangs in Passive Solar Heating

As part of any passive solar home design, the choice and design of windows and overhangs is important. You want your house to admit as much heat and light as possible in the cold season, but not overheat during summer. And you also want them to help protect your home from the cold in the winter.

Ground-breaking housing scheme captures one developer's journey to passive ...

Ground-breaking housing scheme captures one developer's journey to passive ...

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 - Understanding its benefits

Thermal Mass - Understanding its benefits

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'.

Thermal Bypass - What is it?

Thermal Bypass - What is it?

The Government's legally binding objective of achieving an 80% reduction in national CO2 emissions and the drive for zero carbon homes and buildings is focusing attention upon building design and procurement.

Decrement delay & Thermal buffering

Decrement delay & Thermal buffering

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 .

Power from renewables surges to high as emissions fall

Power from renewables surges to high as emissions fall

Nearly a quarter of Britain’s electricity was generated from wind turbines, ­solar panels and other renewables last year. Output from renewables rose from 19.1 per cent in 2014 to a record 24.7 per cent in 2015, according to the Department of Energy & Climate Change.

Zero energy for all?

Zero energy for all?

From 2020 onwards all newly built or renovated houses in NI and ROI will have to comply with the Nearly Zero Energy Building (NZEB) standard. How that requirement will be put into practice remains unclear but there are some general rules we already know will have to be followed ..

Embodied Energy of Materials

Embodied Energy of Materials

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.

Passive homes move is active step towards carbon neutral future

Passive homes move is active step towards carbon neutral future

It’s a glorious day: Dun Laoghaire-Rathdown county council has passed a motion to make the passive house — and its equivalent — mandatory for all new buildings.

Dún Laoghaire council defies Alan Kelly on passive houses

Dún Laoghaire council defies Alan Kelly on passive houses

Dún Laoghaire-Rathdown County Council could be on course for a clash with Minister for the Environment Alan Kelly after councillors voted in favour of an energy-efficient building standard over which his department has serious concerns.

Here's how much of the world would need to be covered in solar panels to power Earth

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.

Criteria for the Passive House, EnerPHit and PHI Low Energy Building Standard

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.

The Passive House standard can't be diluted and here are the maths to prove it

The Passive House standard can't be diluted and here are the maths to prove it

“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.”