Solar Projects

Australia’s energy transition speeds up as rooftop PV records tumble

The Australian Energy Market Operator’s (AEMO) latest report shows that new records are rapidly being set for the amount of renewable energy, including grid-scale and rooftop solar, being fed into the National Electricity Market (NEM), reducing the reliance on traditional coal-fired generation. AEMO Chief Executive Officer Daniel Westerman said there were moments in time in …

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Researchers assess degradation in PV systems older than 15 years

Scientists at the Polish Academy of Sciences have studied PV installations older than 15 years and observed a decrease in energy productivity ranging from 1.9% to 2.9% over a 16-year period. They conducted their tests on two rooftop PV systems in Sinsheim, a town in southwestern Germany. The first system, a 37.8 kW grid-connected array, consists of …

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Predicting solar power output with limited data sizes

Scientists at the National Technical University of Athens have used a machine-learning method known as transfer- learning (TL) to develop a new solar power forecast modeling intended at helping developers with limited data size. The TL method uses a trained model on one task to repurpose in a second, related task. The researchers used three …

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Australian off-grid demand gives rise to compact, pre-wired systems

The number of off-grid properties in Australia is growing rapidly, albeit from a low baseline. The number of off-grid properties for sale in 2020 was just 809. By 2022, there was 1362 – close to a 70% increase. By comparison, the number of solar houses on the market increased by just 26% in that same period. Commodore …

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The right tilt angle, inverter sizing, row spacing for optimal yield forecast

Researchers in Hungary have found that a high tilt angle may increase power forecast errors in a PV installation by up to 49%. They also ascertained that undersizing the inverters by a sizing factor of 1.5 may reduce forecast errors by up to 25%. Image: Image: Budapest University of Technology and Economics, Applied Energy, Creative …

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Solar module price increases to affect returns on 4.4 GW of Indian solar

Solar cell and module prices have increased by more than 40% over the last 18 months in India, driven by polysilicon prices. However, bid tariffs have remained lower than what is needed to mitigate the rise in PV module prices. The risk of lower returns is significant for 4.4 GW of projects that have been …

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