Try looking at recently built commercial buildings in Dubai. The Energy Council there has passed new Net Zero Building Codes, and they have the money and expertise to follow through with it.

Aleksandara nice to hear but do you know any specific building in Dubai that is net zero. I seriously doubt, I am aware of the steps taken bt Dubai Electricity and Water and the Supreme council to move towards net zero and energy conservation. But I am so sure in this climate and with such a large carbon footprint currently it is not possible. the best estimate will be 50% conventional and 50% renewable.

I am not aware of a specific building unfortunately, only the regulations which have been put in place to help curb energy use. I am more familiar with the net zero building approaches in colder climates.

So no net-zero energy buildings examples in hot climates.

I have looked and I cannot find any reference to such buildings. If they exist, they are not publicised on the web.

Try www.nbi.org. They are tracking hundreds of planned and operating NZE buildings.

Hi Drury

Are you sure about the website you provided above:

www.nbi.org

I can't find anything useful.

Sorry. http://newbuildings.org/

Hello Saleh,

In Brazil, there is a Efficient House, at UFSC - State University of Santa Catarina:

http://www.eletrosul.gov.br/casaeficiente/br/home/index.php

Hello,

there is a net zero energy building in Singapore (hot-humid): https://www.bca.gov.sg/zeb/

The feasibility of such buildings strongly depends on building size: For small buildings, the surface area for solar energy utilization is large enough for the volume that needs to be air-conditioned. For large and buildings, the surface/volume ratio is too small to reach net zero.

Thank you for the websites.

More examples are welcomed especially in extreme hot climates.

I have visited such a building in Greater Noida, India (http://www.bayergroupindia.com/ECB.htm ). It hosts the Bayer material science office centre. Its envelope is fully insulated (75 mm foam insulation on walls and roof, double glazing) and its architecture provides a good day lighting (no lamp was lit on during our visit and the lighting was clearly good enough for office work. It used 64 MWh during the year 2011 (first year of exploitation), which is 70% less that a modern similar building, and its photovoltaic panels installed on the roof produced 72 kWh, that is 8 MWh in excess. This building has the first world rank in LEED certification (64 points).

Yes, there is an office building in Sri Lanka. Could name it as "Near-Zero" in operation for hot humid tropical climate. This was already published in Architectural Science Association (ANZAScA) Conference, 2012, Griffith University, Australia.

Thanks Indrika,

If you have a link to the paper or pdf file then please send or post.

Hello Saleh,

The paper is attached. Since the paper describes three case studies in different climatic types, we were unable to include all details of the project. I'm one of the design architect involved in this project. Please contact if you need more details of the project such as architectural drawings and operational data.

Thanks!

Helpful ideas.

A new study report by International Energy Agency:

http://www.iea-shc.org/data/sites/1/publications/T40A52-DC-TR1-30-Net-ZEBs.pdf

Thanks, very helpful.

I am researching for my architecture thesis topic of designing a net-zero water residence in an area of drought. any case-studies of water closed-loop systems, collection,re-use in an area of drought would be extremely helpful! The LBC shows good examples, yet none in an area of drought... I am having trouble finding precedents... Thanks! 

http://newbuildings.org/getting-to-zero-buildings-database

City of Watsonville Water Resources Center  http://newbuildings.org/high-performance-buildings#65680

There's always the Bullit Center, not in a drought area, but net zero water  http://newbuildings.org/high-performance-buildings#69800

Thank you for your input!!  Yes Cascadia Green Building Council and the Living Building Challenge have nice projects for net-zero, but none in an area of drought, which is my focus. I found a thesis research about this subject that I found to have some decent precedents. http://drum.lib.umd.edu/bitstream/handle/1903/16828/Doeller_umd_0117N_16344.pdf?sequence=1&isAllowed=y

Yes, there is an office building in Sri Lanka. This office building (called as NIKINI) represents the lowest BEI (Building Energy Index) of the office building stock. The energy audit data is available in the Sustainable Energy Authority of Sri Lanka. Also, as architects of this buildings, I'm happy to share any information you required. Buildings certified by the Green Building Council of Sri Lanka are not for energy efficiency. Same poor performance is evident for LEED certified buildings in Sri-Lanka.

Indrika, thank you for the information! Do you have any examples that are at a single family residence level? I am creating a script using grasshopper showing the water use. Am I correct by saying that this NIKINI building does not need any outside water source other than rainfall? I am looking for specifically a single family residential project that is in a location of drought (15" of rainfall per year or less..) that does not require any other outside source of water (government infrastructure). So, the NIKINI building is off the grid for water use?

I am really trying to find three examples of single family residential home in a drought area (15" of rainfall or less (8" or less ideally..)), that are off the grid for water. Net zero for water as defined by Living Building Challenge. Net-positive water would be amazing! The data for the water consumption, supply, reuse, waste, collection, etc for each water element in the building would be ideal. For example, the home requires 60,000 gallons a year, the water collection system brings in 20,000 a year, and the reuse systems cut the water use by 40,000 resulting in 0 gallons required from infrastructure..  a net zero water building in a desert (or area of drought). Thanks for the suggestions! I am currently looking at WaterShed house and DesertSOL house but am still wanting something with more data on specifically net-zero water systems at this scale and location. 

Mr. Saleh did you find any useful information or example for your question?

 did you have a building project or a research?

Please refer to our recent paper on Zero Energy Building in extreme hot climate

https://www.researchgate.net/publication/333603221_Zero_energy_building_ZEB_in_a_cooling_dominated_climate_of_Oman_Design_and_energy_performance_analysis

I think that there exists a confussion about Zero Energy Buildings concept. What is about? A building with a very low energy demand like a passive building or a building with a great amount of primary energy auto-generation that supply the energy demand. The question is Is possible to conduct an NZEBs in hot climate whit the less possible energy demand, without active systems? It is the challenge. I was looking at the passive institute examples and i found out that there exists a primary energy generation that supply the energy demand in almost cases a saw. I think that is not the goal.

I will add to Alba Ramos Sanz answer a must-read classic:

Conference Paper Zero Energy Buildings: A Critical Look at the Definition

In Europe the EPBD makes no distinction on the type of nZEB (see Directive 844/2018) and its recent official clarification, a "Recomendation"

https://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1557992239852&uri=CELEX:32019H0786

Personally,

I don´t care about the way we get to NZEB, except if the embodied energy needed to get there exceeds its future savings. You can have an idea in this leaflet:

Chapter draft "Montarroio Shinning Example" for IEA EBC Annex56: enh...