Prudent Energy's third-generation VRB® energy storage system is the product of over 20 years of research and development.  The VRB-ESS® has significant advantages in terms of operating cost, system life, maintenance, and safety. Initially sold as an efficient, low-emission alternative to diesel engines or lead-acid batteries in remote areas, Prudent’s VRB® has become the technology of choice to store and deliver electricity in quantities sufficient to improve the operation of an entire power generation, transmission or distribution network.