The Team

Jason Quinn is the founding director of Sustainable Engineering Ltd. His work focuses on the intersection of physics and building design and he has outspoken views on New Zealand housing. He has degrees in mechanical engineering (George Washington University, USA) and aerospace engineering (Florida Institute of Technology, USA) and is a registered International Professional Engineer (USA) and a Chartered Member of Engineering New Zealand.


Jason spent a decade as a rocket scientist at NASA before he and his family relocated to New Zealand in 2009. He soon became one of New Zealand’s first certified Passive House designers and in 2016 travelled to Germany for further training and exams to become the country’s first Passive House certifier. Jason is an in-demand speaker at Passive House conferences in Australasia and has taught courses for PHINZ, the Passive House Academy and the NZ Green Building Council. 

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Jessica Eyers joined Sustainable Engineering in 2023, bringing a decade of experience as a certified Passive House designer. She has a MSc in architecture (UEL, 2006) and is a design LBP. Jessica has deep expertise in natural building materials, especially strawbale construction. She and her family live in New Zealand's first certified strawbale Passive House. Jessica was most recently running her own architectural design practice; she has also been a NZGBC assessor and Eco Design Adviser.

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Sara Wareing is a building scientist determined to use her skills and knowledge to develop Passive House buildings at scale in New Zealand. She has a Masters of Building Science (with distinction) from VUW. Sara is a certified Passive House designer and certifier. She is practised at coaching designers new to the Passive House methodology—and understands the challenges from first-hand experience. She’s designing her own high-performance home, which will perch on a typical Wellington hillside.

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Carlin Osborne is a Senior Building Energy Modelling Analyst who comes to the Sustainable Engineering Ltd team from a background in building services consulting. He is experienced in hydraulic and mechanical services design and with a range of energy modelling tools. His building services and systems expertise is expanding the scope of dynamic and zonal energy modelling undertaken by Sustainable Engineering. Carlin has a BE(Hons) degree in mechanical engineering from the University of Auckland. He's enthused by the opportunity to influence residential design, helping to create healthier home environments.

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Alvin Abon is a Building Energy Modelling Analyst. He is a mechanical engineer with government and manufacturing sector experience. He puts his mechanical design expertise to work across a wide range of Sustainable Engineering work, including initial design, detailed thermal analysis of junctions and windows as well as supporting certification review. Alvin particularly enjoys working in our more advanced detailed thermal modelling tools for both two and three dimensional heat transfer as well as zonal cooling loads for complex buildings.

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Ike Saniel is an organizational whizz who keeps the back office humming along. On any given day, he may be invoicing, updating the website, coding the email newsletter, or working on documentation to support the certification team.

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