The Technology Show

The Technology Show is a half hour podcast aimed at highlighting the latest in clean tech breakthroughs, climate science, and renewable energy solutions. It is recorded weekly at 3CR radio in Melbourne on Friday Morning at 8:30 am and syndicated around Australia on the community radio network.
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Feel free to get in touch with us at radioteam@bze.org.au
Follow us on twitter @bzetechshow and explore the full list of shows categorized by their content.

Climate Politics
Climate Science
Concentrated Solar Thermal
Commercial Energy Efficiency
Energy Storage
Electric Vehicles
Geothermal Energy
Grid Management
Passive Solar Design
Residential Energy Efficiency
Solar Photo Voltaic
Sustainable Urban Design
Transport
Wave Energy
Wind Energy

Brett Mashado

Brett Mashado talks about his passive solar designed Energy Freedom home in the lead up to Sustainable House Day. The site has no gas connection, and running costs are a fraction of their gas bill alone in their previous home. 

Brett and Gilda Mashado and their three children have been living in their home in Mt Gambier SA and collecting energy usage data for almost one year. He is planning to open his home for Sustainable House Day next year (He couldn't, due to work committments, for this Sunday 11 Sep. There are many other houses you can see so check out the website)

https://sustainablehouseday.com/

Brett's house features:

7.2 stars on the NatHERS rating 

Bondor construction

Sanden heat pumps for hot water

Heat pump hydronic heating, through skirting 

Very well sealed, with an air change rate of 2.05 per hour, which is equivalent to the best standards internationally (for naturally ventilated homes)

NO GAS connection

induction cooktop

3kW PV system 

... and much more!

Queeensland University of Technology (QUT) is collecting one year of opearating data on the whole house, as well as individual circuits, and analysing this for a report due out soon.

Acacia Pepler

Acacia Pepler is a PhD student at the University of New South Wales (UNSW) Climate Change Research Centre, where she studies extreme rainfall and East Coast Lows (ECLs), wild storms and their relation to climate change impacts.

Acacia Pepler initially began her career with an interest in Astronomy but her love of Science and Meteorology took over and after completing a Bachelor of Science BSc, she went on to become a PhD student, as she had always been interested also in the weather. So her current research work centres on the East Coast Lows perhaps as they are difficult to predict and can develop quickly.

As we all at times complain about weather forecast (but expect them to be accurate for a week ahead), our desire for an accurate prediction is of personal and probably superficial  nature or even can be a case of saving lives such as  with the Sydney to Hobart yacht race.  

Climate change can affect East Coast Lows in many ways, for example warmer days can make a cyclone more intense, more rising sea levels which are predicted to be about 1 - 1.5 metres (but NASA has predicted as high as 3 metres by 2050), influences by the Great Dividing Range which can intensify lows up and down the Eastern seaboard can also have an effect.  Answers to these questions are being modelled not only by the Bureau of Meteorology but the Universities of Macquarie and Newcastle, whose special study relates to history and dam levels in NSW the latter of which can be related to the important topic of water security.

Whatever the development of ocean warming intense rainfall is expected to  increase with each degree of global warming particularly when interacting with  cold air in the upper atmosphere. 

(Summary written by BZE volunteer Bev McIntyre 26/8/16)

Dr Stephen White

Dr Stephen White is CSIRO's Program Leader for the Cooperative Research Centre (CRC) for Low Carbon Living (CRCLCL) talks about the EnergyFit Homes Project research, which is a collaborative approach to unlocking the value of energy efficient homes for buyers, renters and investors.  The EnergyFit Homes Project proposes a national voluntary home energy efficiency disclosure system, designed to empower consumers to rate and value homes with lower running costs and health, comfort and sustainability benefits.

Further reading:

CRCLCL Media Release: Consumers want energy-efficiency facts on homes – new research shows

Dr Sara Bice

Dr Sara Bice, Research Fellow at The University of Melbourne, talks about her new book "Responsible Mining".

"Responsible Mining " - Is it an oxymoron or is it possible?

Geoff Pocock

Geoff Pocock is managing director of Hazer Group, a Perth-based company, spun out of the University of Western Australia, which plans to halve the cost of hydrogen production, using a near-zero emissions patented process, based on “methane cracking”.  The chemical process uses “cheap as dirt” iron ore to convert methane in natural gas into hydrogen, with the other valuable by-product capturing the carbon content of the gas in the form of high-quality graphite.

The ASX-listed company raised A$5m at its initial public offering in September 2015.

"
When hydrogen is combusted to generate heat, or used in fuel cells to generate electricity, the only byproduct is water. As a result, it has long been heralded as a low-carbon energy carrier, which could replace gasoline as a transport fuel, powering electric vehicles, or natural gas as fuel to heat buildings.

Graphite is used in the production of lithium-ion batteries, and while prices vary depending on the quality, Pocock says it averages at about US$1,000 per tonne. Globally, the graphite market is worth around US$13bn annually.
"

Photo: Geoff Pocock (right) and CTO Dr Andrew Cornejo with Hazer Group's hydrogen technology. 

Dr Bonnie Monteleone

Dr Bonnie Monteleone is Co-founder, Executive Director and Director of Science, Research and Academic Partnerships for Plastic Ocean Project, Inc. whose mission is to educate through field research, implement progressive outreach initiatives, and incubate solutions to address the global plastic pollution problem. 

Dr Bonnie Monteleone is a field scientist, researcher and student supervisor in the Chemistry department at the University of North Carolina Wilmington (UNCW). Dr Bonnie is also a 5 Gyres Institute ambassador; part of the Ocean Defenders Alliance; Cape Fear Rise Above Plastic through Surfrider; the UNCW Marine Mammal Stranding Program; Algalita Marine Research Foundation; NC Monofilament Recovery and Recycling receptacles at Johnny Mercer Peer; contributes to the Plastic Ocean Project blog and more! She has collected plastic marine samples globally including 4 of the 5 gyres, the Caribbean, and has extended this work to Pyramid Lake, in a Nevada desert outside of Reno.

The passionate Dr Monteleone joins the Beyond Zero team to talk about plastic leachates, persistent organic pollutants (POPs) uptakes, plastic ingestion by marine organisms and the many solutions and projects she is running. She is also an accomplished artist, turning some of the plastic she collects on her  voyages into modern artistic masterpieces.

Dr Stephen Bygrave

AN OVERVIEW OF THE WORK OF BZE OVER THE YEARS
To speak about such a topic, the guest was BZE CEO Dr Stephen Bygrave who is about to embark on a new challenge to join the Queensland government as executive director in the field of environment and climate change.

The work of BZE has encompassed such diverse areas as 100% renewable energy and how soon this may be viable, buildings, battery storage, agriculture including land clearing, industrial processes (such as alternatives in the production of aluminium), and transport to name just a few. In fact BZE has attained worldwide acclaim.

Transport in particular is responsible for 15% of national emissions but the ridiculous dependence on cars in Australia is badly in need of a "mode shift" in favour of public transport and electric cars not forgetting the movement of freight. It is so short-sighted by governments to move freight on the road in lieu of rail which had been achieved in the past. BZE has also written on the topic of high speed rail which has been utilised so successfully in other countries, in particular India and China where there are so many people to accommodate!

So Stephen will perhaps be involved in the different challenges that Queensland can throw up  - none bigger than the Great Barrier Reef and Adani and land clearing!

(Summary written by BZE volunteer Bev McIntyre 12/8/16)

Prof Tara P. Dhakal

Beyond Zero speaks to Professor Tara P. Dhakal of Binghamton University, State University of New York, about his research developing high efficiency solar cells. 

Advances in the manufacture of Solar Cells

Prof Tara Dhakal started off with study of Physics and Material Science, working in Kathmandu, Nepal and Japan and later joined the Uni. of Sth. Florida with the aim of making improved thin film solar. He is at present Assistant Professor of Electrical and Computer Engineering, at the State University of N.Y. and it seems he has always been interested in applied research.

Problems of course with solar is the need to access materials that are abundant, non toxic, reliable and not only cost efficient to manufacture but to install. Approximately 25% of silicon can be converted into electricity and it is fairly expensive to process into wafers.  The Professor discussed the possibility of transparent layers for windows and/or roll-out for roofs.

(Summary written by BZE volunteer Bev McIntyre 29/7/16)

Further reading:

The Conversation: Getting more energy from the sun: how to make better solar cells

Dr Ashish Sharma

Dr Ashish Sharma of the University of Notre Dame (US) has completed a report on whether green roofs, which are covered with plants, and cool roofs, which are surfaced with reflective materials, could reduce Urban Heat Islands (UHI) effects in Chicago.

Dr. Ashish Sharma, doing post-doctural research in Environmental Change Initiative at University of Notre Dame whose research interests include Atmospheric Sciences and land-ocean atmosphere.  He achieved his PhD in Climate Science 2012.

Dr. Sharma spoke of "green" and "cool" roofs - the former having more benefits but of course needing water and a strong roof structure and useful in cities and populated areas probably producing vegetation. Could sustain urban bees and/or provide shade, and can have a pollutant-cleansing effect.

Whereas "cool" roof is basically a reflective roof, for example "Thermoshield" which can be painted on and has both reflective and insulating properties, and can reflect Infra Red.  Today's podcast follows on from last week's Beyond Zero Radio interview with Thermoshield, an Australian cool roof paint product which is headquartered in Dandenong, Victoria.

(Summary written by Bev McIntyre)

Further reading:

The Conversation: Green and cool roofs provide relief for hot cities, but should be sited carefully

ND Report: Cooling down Chicago: How green and cool roofs could impact urban climate

Charles Rendigs

 

The reduction of extremes in heat or cold without continually increasing power consumption

The answer is provided by Charles Rendigs, the National Business Development manager of "Thermoshield", an Australian company developed and owned, situated at Dandenong. It is a coating for roofs that can be painted or sprayed on, can be coloured by mixing with  red or green paint. White of course is generally used when a high  solar reflective index is desired i.e. in Summer but as it ages its capacity to reflect is naturally diminished.

But Thermoshield can also be used to retain warmth inside in the Winter months i.e. as a form of insulation producing what is called "dead air" space so its properties can work to either reflect or absorb. It can be used in conjunction with  PV as PV usually only covers part of the roof and may heat up around the cells. It can increase the productivity of cells during the day. It can also be complementary to pink batts. air conditioners and other forms of temperature control.

It has been tested by CSIRO and has been used from Queensland to Melbourne. It sounds like a robot acting as instructed!

(Summary written by Bev McIntyre)