Inverters

Multiple factors affect the productive lifespans of residential solar inverters. In the second part of our new series on resiliency, we look at PV inverters.

The 3 kW inverter has an efficiency of 95% and features a surge power of 9000 VA. According to the manufacturer, the device is compatible with mainstream lead-acid and lithium-ion batteries.

Australian giant AGL Energy plans to build what will be the world’s largest ‘grid-forming’ battery in South Australia, deploying technology so novel that it yet to be clearly regulated in Australia. “Trialling something like this on the grid at this scale hasn’t been done before anywhere in the world,” Josh Birmingham, Director of Large-Scale & Project Solutions at SMA Australia, told pv magazine Australia.

Australian giant AGL Energy will soon own the world’s largest ‘grid forming’ battery, with construction on its 250 MW/250 MWh big battery to begin later this year at Torrens Island, just north of Adelaide in South Australia. The battery will be delivered by Finnish technology company Wärtsilä with inverters supplied by German company SMA Solar Technology.

The time is now for the energy consumer, says Anna Bruce, as energy “prosumers” produce, consume, and provide electricity and grid services in previously unimagined ways. Bruce, a senior lecturer at the University of New South Wales’ School of Solar Photovoltaic and Renewable Energy Engineering (SPREE), leads work on the role of distributed energy resources in the energy transition, analysing firsthand the dizzying level of complexity it brings.

Potential price rises of 14% for the solar home systems that are driving access to electricity in the world’s under-served regions could signal further arrested progress towards the UN goal of universal access by 2030.

Australia is a world leader in the uptake of rooftop solar but the head of Queensland-based renewable energy company REA Global has labelled the nation’s solar installation standards out of date and unsafe.

The Italian manufacturer has showcased a high-power multi-MPPT string inverter and modular conversion solution – designed to supply both decentralised and centralised systems.

The new product has an efficiency of 98.8% and a European efficiency of up to 98.5%. It features 10 independent maximum power point tracking (MPPT) inputs, with MPPT voltage ranging from 180-1000 V.

The 50 kW version of the new inverter features an efficiency of 98.6% and a European efficiency of 98.1%. It can be deployed with a decentralised approach, next to the PV modules, or centralised, at the grid connection point.