Battery System Upgrade at The Vale

We are putting the finishing touches on a substantial battery upgrade at The Vale at the moment. The old Redflow based 280kWh battery array has been removed, and replaced with almost 400kWh (80 modules) of Pylontech US5000 units.

This is because of the demise of Redflow, a company I put a great deal of time, effort and money in to, over a very long period.

The 28 x ZBM2 array at The Vale did alright for some years, but the time has come to swap in something that I can obtain ongoing support for.

Hence the deployment of 80 x Pylontech US5000 modules – which are now up and running.

The Redflow array was inside our main farm building, inside a wooden room… because Redflow ZBM’s are super-resistant to fire (to creating it, or to amplifying a fire around them).

Because the worst case with Lithium batteries is an ugly exothermic chemical fire, these new modules have been built in to custom-wired, insulated, shipping container (to create a physically separate ‘module’ beside our main farm shed building). The container is cabled back in to the very same Victron Energy system that was built around the previous Redflow batteries.

I’ll write more about this updated system later, and provide some more photos of it… but it felt like the right time to briefly note that things have changed in this regard at The Vale.

The Role of Flow Batteries in Dispatchable Renewable Energy Grids

At the Australian Energy Storage conference held in Adelaide, South Australia on May 23-24 2018, I delivered this keynote address about the role of flow batteries and other energy storage technologies in the context of building an energy grid with renewable energy in the majority and with “Baseload” generation on the wane.

The core thematic question I posed was this: Is a future grid with large amounts of renewable energy storage necessarily using Lithium-Ion (or other, otherwise conventional) battery systems for the majority of that large scale energy storage – or are there better ways?

A specific underlying aspect of that conversation is about environmental impact – around the notion of ‘environmentally friendly’ energy generation and storage being a notion that must factor in the ultimate environmental impact for each storage technology and not just its up-front cost.

The video below is a recording of my address synchronised to the slide deck that I used.

The standalone slide deck is also available here: Hackett-Keynote-Redflow-AES2018