Several large-scale energy storage technologies in their early stage of development were discussed in the earlier article. Gravity Power LLC was identified as a company that stood out from the others, principally because its teachnology fully embraces the KISS principal (Googlr it) and shouls be deployable in the near term. In fact, the U.S. Department of Energy took a look at the technology and was unable to fund development work because no research and development was needed.