Technology

An international team of scientists fabricated perovskite solar cells which retained almost all of their initial 21% efficiency after 1,000 hours under continuous operation at their maximum power point. The researchers credit this performance to their discovery of an additive that served to ‘block’ ions that cause device degradation, and also hope their work will contribute to an improved understanding of the relationship between efficiency and stability in perovskite PV.

A proposal which would allow network operators to charge rooftop solar PV owners to export their surplus energy to the grid has been opposed by key stakeholder groups in a joint submission to the Australian Energy Market Commission.

The proposed technique is based on radiative cooling and consists of a glass coating made with a two-dimensional subwavelength nanostructured grating, which is imprinted in soda-lime glass and has enhanced mid-infrared emissivity, and a micro-structured grating. The temperature decrease provided by the nano-micro-grating coating was found to be approximately up to 5.8 degrees Celsius.

Australia’s largest renewable energy zone is one step closer to fruition with the New South Wales Government calling for registrations of interest from developers of solar PV, wind and energy storage projects.

The Institute for Energy Economics and Financial analysis (IEEFA) has published a report in which it points to seven key lessons energy planners the world over can take from South Australia’s extraordinary renewable energy integration. However, even South Australia, IEEFA’s model, still requires thoughtful planning and policy for the path forward.

The system, developed by Spanish specialist Alusín Solar, is being tested by Endesa in a 9.8 MW project for self-consumption. The mounting structure is made with aluminium bars that, instead of being fixed to the roof with screws, are attached through a double-sided adhesive.

Scientists in China developed a new kesterite solar cell they say could be suitable for indoor or outdoor applications. The bifacial solar cell reached 9.3% frontside efficiency, and also achieved a 9.0% on the backside.

Chief Executive of the Australian Renewable Energy Agency, Darren Miller, says he envisions a future where Australia will produce up to ten times more clean electricity than the country requires to become a “shining example of what is possible if you have the right ingredients and the right ambition.”

The Housing SA Tesla VPP is being expanded to include a trial of 20 homes unsuitable for solar installation. The SA Government is offering free Tesla batteries to such homes to show how participation in the VPP with a battery alone can still deliver significant savings.

A German PV system owner has developed a simple solution intended at preventing the birds from nesting under the modules.