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.
Royal Dutch Shell is gearing up to become Germany’s leading provider of green hydrogen for industrial and transport clients. The British-Dutch oil major is planning to build 1,000 fast charging stations for electric vehicles at its petrol stations by 2030, and is looking to acquire green energy start-ups.
Technology companies in Europe and China have embarked on a race to develop and commercialise electrolysers to produce hydrogen as a fuel for industry and power generation. Though China can make the cheapest electrolysers, Europe leads on lean hydrogen technologies. Competition is rife, and set to improve project economics.