If you need more evidence that energy storage is much more than lithium ion batteries, take a look at the latest smart-grid utility storage projects.
The Department of Energy on Tuesday announced that $620 million in stimulus funding is going to 32 smart-grid programs, which will be coupled with another $1 billion in private money. A total of $770 million from government and industry sources in the next few years will go to energy storage, giving a number of storage technologies a dose of real-world experience. (See this PDF for details.)
Notable in the list is the prominence of compressed-air … Read more