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Weekend read: Current developments

The incremental improvements achieved each year in solar are usually relatively small, and improvements to one component can easily be accommodated by the rest of the system. But every so often, a bigger change comes along, with implications that will ripple up and down the supply chain.

Sungrow launches second generation inverter in Australia

Chinese solar inverter giant Sungrow has taken the first step towards increasing its Australian market share in 2021 with the launch of its second generation three-phase residential inverters.

Tesla launches solar inverter

The EV manufacturer with big solar ambitions has finally leveraged its expertise in power electronics technology and launched a solar inverter.

The future of power electronics is distributed, aggregated and service oriented

IHS Markit released a white paper in which the analyst outfit shared some predictions for the power electronics market. First and foremost, inverters will become smarter, and after some power outages in key markets, these devices are gearing up to take on more grid stabilising tasks, which hitherto had been reserved for synchronous generators.

Adaptive solar shade system means horticulturalists can smell the roses

Researchers have modelled the effects of various PV module arrangements on a greenhouse used for rose growing in Iran’s Shiraz region. The team determined a ‘sweet spot’ where modules produced the most energy and provided optimal growth conditions for the crop.

A virtual-oscillator-based control strategy for microgrids

Researchers have modeled how the combination of a virtual oscillator control mechanism and a cascaded sliding mode control can help regulate voltage and frequency in a distributed-solar microgrid.

Fraunhofer to develop battery inverter for whole-area UPS and renewables integration

Industrial and academic partners are developing a battery inverter which can be grid connected under normal operation but can also use nearby renewables generators to form an island grid, for whole-area uninterrupted power supply.

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Another bumper year sees green bonds push through $1tn mark

Sustainability-linked debt financing is experiencing ever increasing popularity and the success of green bonds has driven other products linked to social performance and other sustainability criteria. The total volume of such investments to date passed the $2 trillion point this year.

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Chinese PV industry headed toward grid parity

Project delays and price changes due to fluctuating demand are disrupting the Chinese solar market. Researchers who have analysed the situation claim that the nation’s PV industry will be back on track toward grid parity by the end of the year.

“Capacity deferral is the primary source of storage value”

Big batteries derive most their value from replacing gas peaker plants and averting the installation of excessive amounts of transmission and generation infrastructure. However, batteries cannot replace all gas plants, MIT researchers found. From a holistic economics perspective, there is a certain share of storage that is considered cost-efficient. With battery costs declining, that share is constantly increasing.

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