South Korea’s conglomerate SK Group has decided to invest $1.5 billion in the hydrogen fuel cell provider Plug Power as the two South Korean companies enter a strategic partnership. The aim is to provide full cells, hydrogen fueling stations, and electrolysers to the Korean and broader Asian markets.
Toshiba has developed an aqueous rechargeable lithium-ion battery in a bid to realise the world’s first large-scale battery that can operate at -30°C. The high durability battery has over 2,000 charge- and discharge-cycles and by using water as aqueous electrolyte, it is safe even if exposed to fire.
Energy capacity cost of utility-scale battery storage in the United States has rapidly decreased from $2,152 per kilowatthour (kWh) on average in 2015 to below $625/kWh in 2018, falling further since. Long-duration batteries are cheaper and costs vary by region, coming in at just $947/kWh in Hawaii.
Intermittency issues of wind and solar power supply are feared to jeopardize the stability of the U.S. power grid. To remedy this issue scientist at the Massachusetts Institute of Technology (MIT) have developed an “air-breathing” battery storage that, at the cheapest, run about $100/kWh and functions only in certain locations.