SP Angel morning view26 Apr 2019 15:15
https://www.v o x markets.co.uk/articles/broker-research-6406ef6
Explosive lithium-ion storage has heads turning for safer vanadium technologies
Building on 21 fires already occurred across battery projects in South Korea, a major lithium-ion fire and exploration erupted at a facility owned by a Pinnacle West Capital Corp. utility in Surprise, Arizona – marking the first time in America since battery storage technology expanded.
The fire only serves the highlight the stability of nascent technology, potentially disrupting short-term adoption and offers market opportunities as other technologies mature and costs fall.
The electrolyte consumed today are flammable in the presence of oxygen. While sealed from external sources, some cathodes can release oxygen within the cell under high temperatures.
Safety concerns are arising at an inopportune time for the fledgling industry, with falling costs finally competing against conventional power plants.
Pinnacle West’s Arizona Public Service alone targeted 850MW storage by 2025, however with enough storage to supply 600,000 homes, the system has been shut down and investigated. The system was installed by Fluence, a joint venture of AES Corp. and Siemens.
While the cause remains unclear, in Korea, defective battery models, external shock during construction and faulty battery-management systems have contributed to recent fires.
As adoption rises, lithium-ion fires are recognised in mainstream media as a growing concern, with Tesla under scrutiny following another sedan fire in China.
Safety issues are becoming a selling point for rivals of lithium-ion, with CEO of Primus Power Corp, Tom Stepien, noting Li-ion’s “inherent fire risks” following the accident.
There is a “wide opening – a pantheon of new technologies that are aiming to beat lithium-ion from both a performance and cost perspective”, said Jeff Chamberlain, CEO of Volta Energy Technologies.
Lithium-ion will be a powerful incumbent to beat. The technology has made up more than 85% of the world’s annual energy-storage deployments since 2016, according to BloombergNEF.
Energy Storage Association CEO Kelly Speakes-Backman identifies “the US energy storage market nearly doubled in 2018 and is expected to double again in 2019”.
This clearly creates a growth opportunity for both lithium-ion and alternative solutions. Flow batteries, including vanadium redox flow batteries under development at Bushveld Energy, offer long-term, scalable energy storage solutions without the flammable risks.