Distributed Storage

One of Australia’s largest residential and commercial solar PV retailers and installers has announced it will exit the market, declaring low margins and once-in-a-generation disruptions to the supply chain brought on by the Covid-19 pandemic have taken a toll.

Conceived for the storage of residential and large scale renewable energy, the device has a rated power of over 150mW/cm2, an energy density exceeding 40Wh/L, and a power density of 72.5mW/cm2. The battery was built with an anode made of inexpensive viologen and its cost, according to its creators, may be lower than US$100/kWh (AU$140).

A bill which would make home batteries up to $3,000 cheaper nationwide has been tabled by Independent MP Helen Haines. Haines proposes making home batteries eligible for Small-scale Technology Certificates, the same scheme behind Australia’s thriving rooftop solar sector.

The Victorian government will be expanding its Solar Homes rebate program into the world of Virtual Power Plants (VPPs), announcing on Tuesday that households who install a battery and sign up to the pilot before July 2022 will receive a rebate of over $4000.

A fire caused by a lithium-ion home battery system in northern Adelaide over the weekend has led authorities to urge solar and battery owners to be vigilant with maintaining their systems.

Western Australia will today introduce new curtailment rules which will allow for all new and upgraded solar PV and battery energy storage installations with an inverter capacity of 5 kW or less to be remotely turned down or switched off in emergency situations.

In battery storage, there is no silver bullet chemistry type and as we move towards more ambitious decarbonization goals, room is being made for diverse systems. As an old technology with new vitality, zinc-based batteries are edging closer to commercialization, leveraging their unique ability to be configured for short and long duration operation. They are safer, longer lasting and, in some cases, reportedly up to 50% cheaper than lithium-ion batteries and, following recent game-changing advances, the prospects for zinc look much more exciting. pv magazine sat down with the manager of the newly established, global Zinc Battery Initiative, Josef Daniel-Ivad, to discuss the technology’s market position and developments.

Researchers in Italy are combining PV with latent heat thermal storage (LHTM) and other renewable energy sources to maximize clean energy consumption in buildings. The 47kW PV array and LHTM system work independently, but the scientists said that a heat pump could be used to link them.

A pair of researchers from the University of California San Diego have proposed to precompute certain data when the grid is flooded with solar or wind power, and then store it on servers for later use.

Gelion’s zinc-bromide Endure batteries will undergo commercial tests at the 1.2 MW Montes del Cierzo testing field Spanish renewable energy company Acciona Energía operates in Navarra, in the north of Spain.