Ireland's third nationwide NZEB Open Doors Days will take place over the weekend of the 13 -15 November. Members of the public and building professionals will be provided with a great opportunity to visit some of the best examples of low energy projects, both houses and public and commercial buildings, in Ireland. All visits are free but do need to be booked in advance through the website www.nzeb-opendoors.ie. Every new public building must be designed to 'nearly zero energy standards' from 2019. All other new buildings will have to comply with this standard from 2021. The Irish NZEB standard for dwellings proposed for 2016 by the Department of Environment, Community and Local Government will achieve a 70 per cent improvement in energy demand (compared to the 2005 reference dwelling). For a typical dwelling, this will equate to an A2 rating with a primary energy value of 45 kWh/m2/annum and an energy performance co-efficient (EPC) and carbon performance co-efficient (CPC) not exceeding 0.302 and 0.305 respectively. More than 40 buildings will open their doors this year, mostly newly built and retrofitted houses, many to the Passive House standard. Commercial buildings who will welcome visitors include will include the NUIG Engineering Building in Galway, the Wicklow GAA Centre of Excellence and the Zero Carbon Tesco Supermarket in Cabra, Dublin 7. Tours will also be taking place at the Cloughjordan Eco Village in Tipperary where a variety of buildings will be open for visitor. The Irish NZEB event will be run in tandem with the International Passive House Days and in partnership with the Passive House Association of Ireland.