11 April 2017 2017 09:30 AM GMT

New Perovskite Efficiency Record Is A Breakthrough With Significant Potential

Researchers at The Australian National University (ANU) have achieved a new record efficiency for low-cost semi-transparent perovskite solar cells in a breakthrough that could bring down the cost of generating solar electricity. The team led by The Duong from the ANU Research School of Engineering have achieved 26 percent efficiency in converting sunlight into energy, which could help make perovskite solar cells a viable alternative to existing silicon cells.

Perovskite is a material with a lattice-like structure that can help harvest light. Researchers have achieved 26 percent efficiency by mechanically combining perovskite with silicon solar cells. “Until now efficiencies of this kind have only been achieved using high-cost materials normally used on satellites,” said Mr Duong, a PhD student. “We are now a step closer to a low-cost alternative.” Silicon solar cell technology is about 90 percent of the solar market, but scientists around the world are working to find a way to make them more efficient, affordable, stable and reliable. The research is supported by $3.6 million in funding from the Australian Renewable Energy Agency.

Professor Kylie Catchpole from the ANU Research School of Engineering said the advances in solar technology were good news for consumers, although the perovskite cells were not yet ready for use on rooftops. “This breakthrough opens the way to increasing the efficiency of silicon solar cells further, and in a cheap way,” Professor Catchpole said. “The key challenge, for now, is achieving the same stability as we have with silicon solar cells that can be put out on a roof for 20 years using perovskite. “Over the next few years, we are planning to increase efficiencies to 30 per cent and beyond.”

The research has been published in Advanced Energy Materials. This work was part of the “High-efficiency silicon/perovskite solar cells” project led by University of New South Wales with research partners ANU, Monash University, Arizona State University, Suntech R&D Australia Pty Ltd and Trina Solar.

Courtesy Of The Australian National University (ANU). Photo: Professor Kylie Catchpole and The Duong, ANU Research School of Engineering.

August 16th 2019
Corporate Sourcing of Renewables Growing, Taking Place in 75 Countries

Companies in 75 countries actively sourced 465 terawatt hours (TWh) of renewable energy in 2017, an amount close to the overall electricity demand of France, according to the report from the International Renewable Energy Agency (IRENA). With the continued decline in the costs of renewables, the report suggests, corporate demand will continue to increase as companies seek to reduce electricity bills, hedge against future price spikes and address sustainability concerns.

August 14th 2019
Wind: China Maintains Emerging Markets Top Spot Following 19.7GW Build Boom

Wind industry intelligence service A Word About Wind has launched its Emerging Markets Attractiveness Index report for 2018, which provides insight and analysis into the most attractive emerging markets for wind companies. The index, now in its second year, ranks the top 30 emerging markets that investors should consider when investing in wind in Europe, Africa, Asia and Latin America. The list considers factors including political and economic stability for investors, alongside the growth of electricity demand and potential for wind growth, in order to rank the countries by overall potential. As with last year’s report, China tops the list and the ongoing trade war with the US shows no sign of slowing China’s formidable growth.

August 12th 2019
EU Approves Ambitious Energy Efficiency Goals, Encourages Clean Energy Feed-In

Europeans will now be entitled to consume, store and sell the renewable energy they produce in line with ambitious targets set by the EU. The targets are to be reviewed by 2023, and can only be raised, not lowered. By making energy more efficient, Europeans will see their energy bills reduced. In addition, Europe will reduce its reliance on external suppliers of oil and gas, improve local air quality and protect the climate. For the first time, member states will also be obliged to establish specific energy efficiency measures to the benefit of those affected by energy poverty. Member states must also ensure that citizens are entitled to generate renewable energy for their own consumption, to store it and to sell excess production.

solar energy qmqr18