Energy storage is a critical component for strong-grid, weak-grid and off-grid telecommunication sites. The storage element is essential in providing backup and/or bridging power to the generator for short and long-duration outages.
Lead acid batteries are used predominantly in strong-grid sites because they are rarely exercised and remain on float charge for the majority of their life. Lead acid batteries in float application will last a long time, unless elevated temperatures are present for extended periods of time. At these “hot sites”, lead acid batteries often fail in 2-5 years, making lithium-ion and other non lead-based battery chemistries more attractive from a levalized cost of battery energy basis.
The renewable-based hybrid power systems designed, constructed and operated by WRH Power Systems, predominantly use lithium-based batteries combined with solar panels, thermal (diesel) generators and intelligent WRH Telecommunications’controls and monitoring. WRH Telecommunications’ sites predominantly use lithium-based batteries because the sites:
WRH Telecommunications is constantly improving its controls and monitoring to reduce the levelized cost of energy and consequent cost of ownership across its asset class.